75 Airworthiness Directives: 64 airplane, 5 rotorcraft, 5 engine, 1 appliance.
AD 2001-15-14 · published Aug 1, 2001, effective Sep 5, 2001
Airbus Model A330 and A340 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A330 and A340 series airplanes, that requires installation of a retainer device on the attachment pin of the brake torque rod of the main landing gear (MLG). The actions specified by this AD are intended to prevent the attachment pin from fully migrating from the brake torque rod and to prevent the collar from detaching from the MLG; these conditions could result in loss of braking on two wheels and the inability to extend the MLG. This action is intended to address the identified unsafe condition.
AD 2001-15-29 · published Aug 3, 2001, effective Aug 20, 2001
Airbus Model A330-301, -321, -322, -341, and -342 Series Airplanes and Airbus Model A340 Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Airbus Model A330-301, -321, -322, and -342 series airplanes and certain Airbus Model A340 series airplanes, that currently requires reinforcement of the wing structure at the inboard pylon rear pickup area. This amendment revises the applicability to include additional airplanes. The actions specified by this AD are intended to prevent fatigue cracking of the bottom skin and reinforcing plate of the wing due to bending, which could lead to reduced structural integrity of the airplane wing. This action is intended to address the identified unsafe condition.
AD 2001-15-20 · published Aug 6, 2001, effective Sep 10, 2001
Fokker Model F.28 Mark 1000, 2000, 3000, and 4000 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Fokker Model F.28 Mark 1000, 2000, 3000, and 4000 series airplanes, that requires a one-time inspection to detect the presence of filler plates of the engine support fittings, and corrective action, if necessary. The actions specified by this AD are intended to detect and correct fatigue and stress corrosion in the U- shaped upper and lower legs of the engine support fittings, which could result in reduced structural integrity of the engine support structure. This action is intended to address the identified unsafe condition.
AD 2001-15-21 · published Aug 6, 2001, effective Sep 10, 2001
Airbus Model A300 B2 and B4; A310; and A300 B4-600, B4-600R, and F4-600R (Collectively Called A300-600) Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300 B2 and B4; A310; and A300 B4- 600, B4-600R, and F4-600R (collectively called A300-600) series airplanes; that requires modification of certain components related to the fuel level sensors. This action is necessary to prevent the possibility of overheating of the fuel level sensors, which could lead to the risk of explosion in the fuel tank. This action is intended to address the identified unsafe condition.
AD 2001-15-22 · published Aug 6, 2001, effective Sep 10, 2001
Airbus Model A319, A320, and A321 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes, that requires modifications of route segregation between the low voltage wire bundles of the fuel quantity indicating system and the high voltage wire bundles of the ground power control unit. This amendment is prompted by mandatory continuing airworthiness information from a civil airworthiness authority. The actions specified by this AD are intended to prevent injection of 115 volt alternating current (VAC) into 28 volt direct current (VDC) wire bundles, which could result in high voltage conditions within the fuel tank and the potential for damage to equipment, electrical arcing, and fuel vapor ignition on the ground. This action is intended to address the identified unsafe condition.
AD 2001-15-23 · published Aug 6, 2001, effective Sep 10, 2001
Bae Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain BAe Systems (Operations) Limited Model BAe 146 and Avro 146-RJ series airplanes, that requires identifying the discharge valves and cabin pressure controllers, and replacing them with new parts if necessary. The actions specified by this AD are intended to prevent the installation of incorrect pressurization discharge valves and cabin pressure controllers, which could subject the airframe to excess stress and adversely affect the airframe fatigue life. This action is intended to address the identified unsafe condition.
AD 2001-15-24 · published Aug 6, 2001, effective Sep 10, 2001
Bombardier Model CL-600-2B16 (including CL-601-3A and CL-601-3R) Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B16 series airplanes, that requires modification of the wiring for the internal fuel/defuel panel. The actions specified by this AD are intended to prevent the loss of engine and fuel indications essential for safe flight and landing. This action is intended to address the identified unsafe condition.
AD 2001-15-25 · published Aug 6, 2001, effective Sep 10, 2001
Raytheon Model Hawker 800XP Series Airplanes and Model Hawker 800 (U-125A Military) Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Raytheon Model Hawker 800XP series airplanes and certain Model Hawker 800 (U-125A military) airplanes, that requires a one-time inspection of an attachment bolt in the main landing gear (MLG) door system to determine whether the bolt's protruding threads have been peened; and corrective action, if necessary. The actions specified by this AD are intended to prevent the disconnection of the retaining hook (which holds the MLG door up and locked) from its means of actuation, which could result in a gear-up landing and possible injury to passengers and crew. This action is intended to address the identified unsafe condition.
AD 2001-15-26 · published Aug 6, 2001, effective Aug 21, 2001
Israel Aircraft Industries, Ltd., Model Astra SPX Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Israel Aircraft Industries, Ltd., Model Astra SPX series airplanes. This action requires a one-time inspection to detect insufficient clearance on the electrical wire bundles routed next to the pilot and copilot air data reference and reversionary switching panels; and corrective action, if necessary. This action is necessary to prevent chafing of the electrical wire bundles, which could result in loss of flight-critical displays or system functions, and potential fire. This action is intended to address the identified unsafe condition.
AD 2001-15-27 · published Aug 6, 2001, effective Aug 21, 2001
Israel Aircraft Industries, Ltd., Model 1125 Westwind Astra Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Israel Aircraft Industries, Ltd., Model 1125 Westwind Astra series airplanes. This action requires replacing certain fuel-immersed electrical harnesses in the fuel tank with modified harnesses. This action is necessary to prevent electrical arcing in the area of fuel vapors, which could result in a potential explosion and/or fire in the fuel tank. This action is intended to address the identified unsafe condition.
AD 2001-15-28 · published Aug 6, 2001, effective Sep 10, 2001
BAe Systems (Operations) Limited Model Avro 146-RJ Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain BAe Systems (Operations) Limited Model Avro 146- RJ series airplanes, that requires modification of the passenger service units. The actions specified by this AD are intended to prevent failure of the passenger service units to deliver oxygen to the passengers in the event of decompression of the airplane, which could result in injury to the passengers. This action is intended to address the identified unsafe condition.
AD 2001-15-31 · published Aug 6, 2001, effective Aug 21, 2001
Bombardier Model DHC-8-311 and -315 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-8-311 and -315 series airplanes. This action requires replacement of the door stops on the baggage bulkhead with new, improved door stops. This action is necessary to prevent the internal door on the baggage bulkhead from jamming in the closed position, precluding access to the baggage compartment, which is critical for fire fighting during flight. This action is intended to address the identified unsafe condition.
AD 2001-15-32 · published Aug 6, 2001, effective Aug 21, 2001
Fokker Model F27 Mark 050 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes. This action requires installation of a filler plate and a doubler to reinforce the area under the top antenna for the Traffic Collision Avoidance System (TCAS). This action is necessary to prevent cracking due to fatigue in the area under the antenna for the TCAS, which could result in reduced structural capability of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-15-33 · published Aug 6, 2001, effective Sep 10, 2001
BAe Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to all BAe Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ series airplanes, that currently requires a one- time inspection for "drill marks" and corrosion on the underside of the wing top skin, and corrective actions, if necessary. For certain airplanes, this amendment requires repetitive inspections for "drill marks" or corrosion on the underside of the wing top skin, and corrective actions, if necessary, until all corrective actions and protective treatment actions are done. For certain airplanes, this amendment adds a requirement for one-time detailed and borescopic inspections of the fuel tank, pump, and stringers for paint debris and inadequacy of the existing protective treatment coating; and corrective actions, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent corrosion from developing on the underside of the top skin of the center wing, which could result in reduced structural integrity of the airplane.
AD 2001-16-01 · published Aug 6, 2001, effective Aug 21, 2001
Airbus Model A330-301, -321, -322, -341, and -342 Series Airplanes, and Model A340 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Model A330-301, -321, -322, -341, and - 342 series airplanes, and certain Model A340 series airplanes. This action requires repetitive inspections to detect cracking of the aft cargo compartment door, and corrective action if necessary. This action also provides for optional terminating action for the repetitive inspections. This action is necessary to detect and correct cracking of the aft cargo compartment door, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-03 · published Aug 6, 2001, effective Aug 21, 2001
Boeing Model 767-200, -300, -300F, and -400ER Series Airplanes Equipped with General Electric Model CF6-80C2 Series Engines
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 767-200, -300, -300F, and -400ER series airplanes equipped with General Electric Model CF6-80C2 series engines. This action requires various repetitive inspections and tests of certain fail-safe features of the thrust reverser control system; and corrective actions, if necessary. This action is necessary to ensure that the fail-safe features of the thrust reverser are fully functional and to protect against an in-flight thrust reverser deployment, which could result in loss of controllability of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-04 · published Aug 7, 2001, effective Aug 22, 2001
Fokker Model F27 Mark 050 Series Airplanes Equipped With Pratt & Whitney Canada Model PW127B Engines
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes equipped with certain Pratt & Whitney Canada Model PW127B engines. This action requires replacing both torque sensor No. 1 and the electrical connectors on the wiring harness between torque sensor No. 1 and the auto-feathering unit (AFU). This action is necessary to prevent inadvertent autofeathering of the propellers, due to interruption of the torque signal between torque sensor No. 1 and the AFU, which could result in loss of engine power and loss of control of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-15-30 · published Aug 8, 2001, effective Sep 12, 2001
BAE Systems (Operations) Limited Model Avro 146-RJ Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain BAE Systems (Operations) Limited Model Avro 146- RJ series airplanes, that requires inspection to detect incorrect wiring of the fire extinguisher bottles located on the engines and on the auxiliary power unit (APU), and corrective action, as necessary. It also requires modification of the wiring of the fire extinguisher bottles located on the engines and on the APU. This amendment is prompted by reports of incorrect wiring of the fire extinguisher bottles on the engines and the APU discovered during routine maintenance. The actions specified by this AD are intended to prevent failure of the fire extinguisher bottles to discharge, which could result in the inability to extinguish a fire in the engines or in the APU.
AD 2001-16-02 · published Aug 8, 2001, effective Sep 12, 2001
Boeing Model 747-100, -200B, -200F, -200C, -100B, -300, -100B SUD, -400, -400D, -400F, and 747SR Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that requires repetitive inspections to find cracking of the frame web, strap, inner chords, and inner chord angle of the forward edge frame of the number 5 main entry door cutout, and repair, if necessary. These actions are necessary to find and fix such cracking, which could result in severing of the frame, inability of the edge frame to react door stop loads, and consequent rapid depressurization of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-14 · published Aug 16, 2001, effective Aug 31, 2001
Airbus Model A319, A320, and A321 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Model A319, A320, and A321 series airplanes. This action requires modification of the telescopic girt bar of the escape slide/raft assembly, and follow-on actions. This action is necessary to prevent failure of the escape slide/raft to deploy correctly, which could result in the slide being unusable during an emergency evacuation and consequent injury to passengers or airplane crewmembers. This action is intended to address the identified unsafe condition.
AD 2001-16-17 · published Aug 16, 2001, effective Sep 20, 2001
Boeing Model 767-300 Series Airplanes Modified by Supplemental Type Certificate SA5765NM or SA5978NM
This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 767-300 series airplanes modified by supplemental type certificate (STC) SA5765NM or SA5978NM, that requires removal or modification of the in-flight entertainment (IFE) system installed by those STCs. This action is necessary to prevent the inability of the flight crew to remove power from the IFE system when necessary. Inability to remove power from the IFE system during a non- normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin. This action is intended to address the identified unsafe condition.
AD 2001-16-18 · published Aug 17, 2001, effective Sep 21, 2001
Boeing Model 767-300 Series Airplanes Modified by Supplemental Type Certificate ST00157SE
This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 767-300 series airplanes modified by supplemental type certificate ST00157SE, that requires modification of the electrical circuits that supply power to the in-flight entertainment (IFE) system. This action is necessary to prevent the inability of the flight crew to remove power from the IFE system when necessary. Inability to remove power from the IFE system during a non- normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin. This action is intended to address the identified unsafe condition.
AD 2001-16-19 · published Aug 17, 2001, effective Sep 21, 2001
Boeing Model 747-100 and -200 Series Airplanes Modified by Supplemental Type Certificate ST00196SE
This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 747-100 and -200 series airplanes modified by supplemental type certificate ST00196SE, that requires modification of the in-flight entertainment (IFE) system and revision of the Airplane Flight Manual. This action is necessary to ensure that the flight crew is able to remove electrical power from the IFE system when necessary and is advised of appropriate procedures for such action. Inability to remove power from the IFE system during a non- normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin. This action is intended to address the identified unsafe condition.
AD 2001-16-20 · published Aug 17, 2001, effective Sep 21, 2001
Boeing Model 767-200 Series Airplanes Modified by Supplemental Type Certificate SA5134NM
This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 767-200 series airplanes modified by supplemental type certificate SA5134NM, that requires modification of the in-flight entertainment (IFE) system. This action is necessary to prevent the inability of the flight crew to remove power from the IFE system when necessary. Inability to remove power from the IFE system during a non-normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin. This action is intended to address the identified unsafe condition.
AD 2001-16-21 · published Aug 17, 2001, effective Sep 21, 2001
Boeing Model 767-200 Series Airplanes Modified by Supplemental Type Certificate SA4998NM
This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 767-200 series airplanes modified by supplemental type certificate SA4998NM, that requires modification of the in-flight entertainment (IFE) system to connect it to a different power source. This action is necessary to prevent the inability of the flight crew to remove power from the IFE system when necessary. Inability to remove power from the IFE system during a non-normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin. This action is intended to address the identified unsafe condition.
AD 2001-16-22 · published Aug 17, 2001, effective Sep 21, 2001
McDonnell Douglas Model DC-10-30 Series Airplanes Modified by Supplemental Type Certificate SA8452SW
This amendment adopts a new airworthiness directive (AD), applicable to all McDonnell Douglas Model DC-10-30 series airplanes modified by supplemental type certificate SA8452SW, that requires modification of the in-flight entertainment (IFE) system and revision of the Airplane Flight Manual and the Inflight Manual. This action is necessary to ensure that the airplane crew is able to remove electrical power from the IFE system when necessary and is advised of appropriate procedures for such action. Inability to remove power from the IFE system during a non-normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin. This action is intended to address the identified unsafe condition.
AD 2001-17-01 · published Aug 17, 2001, effective Aug 27, 2001
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 series airplanes. This action requires measuring the gap between the bellcrank and the body of the rotary variable inductive transducers (RVITs) of the aileron and elevator, performing corrective action if necessary, and torquing the bolt that attaches the bellcrank to the RVIT shaft. This action is necessary to prevent restricted movement of the aileron or elevator, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-06 · published Aug 20, 2001, effective Sep 24, 2001
Boeing Model 737-100 and -200 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737 series airplanes, that requires initial and repetitive inspections of certain areas of the wing spars to detect cracking or corrosion; and follow-on corrective actions and repair, if necessary. This amendment is prompted by reports of cracks and corrosion in the upper chord of the front and rear spars of the wing and reports of cracks propagating from previously repaired areas. The actions specified by this AD are intended to detect and correct such cracking or corrosion of the upper and lower chords of the wing spars, which could result in reduced structural integrity of the wing.
AD 2001-16-07 · published Aug 20, 2001, effective Sep 24, 2001
Boeing Model 747-400 and 767 Series Airplanes Equipped With General Electric CF6-80C2 Series Engines
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747-400 and 767 series airplanes, that requires modification of the core cowl assemblies of the engines. This action is necessary to prevent failure of the core cowl latches during an engine fire, and consequent in-flight separation of an engine core cowl and its strut fire barrier from the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-08 · published Aug 20, 2001, effective Sep 24, 2001
Boeing Model 747 Series Airplanes Equipped With General Electric Model CF6-45 or -50 Series Engines or Pratt & Whitney Model JT9D-3, -7, or -70 Series Engines; and 747-E4B (Military) Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes equipped with General Electric Model CF6-45 or -50 series engines or Pratt & Whitney Model JT9D-3, -7, or -70 series engines; and all 747-E4B (military) airplanes. That AD currently requires repetitive inspections to detect cracking or fracture of the steel attachment fittings of the diagonal brace to the nacelle struts; and replacement of the attachment fittings with new steel fittings, if necessary. This amendment adds new repetitive inspections of the fasteners of the steel attachment fittings of the diagonal brace to the inboard and outboard nacelle struts to find discrepancies; and mandates certain one-time inspections of the existing attachment fittings, installation of new fasteners, and replacement or rework of the fittings, which terminates the repetitive inspections. This amendment is prompted by a report of fatigue cracking in a steel attachment fitting of the diagonal brace to the number 2 nacelle strut. The actions specified by this AD are intended to prevent such cracking or a fracture, which could result in failure of a nacelle strut diagonal brace load path and possible separation of the nacelle from the wing.
AD 2001-16-09 · published Aug 20, 2001, effective Sep 24, 2001
Airbus Model A319, A320, and A321 Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), which is applicable to all Model A320 series airplanes, that currently requires repetitive measurements of the deflection of the elevator trailing edge; inspections of the elevator servo controls and their attachments; and replacement of worn or damaged parts, if necessary. This amendment requires periodic inspection of the elevators for excessive freeplay, repair of worn parts if excessive freeplay is detected, and modification of the elevator neutral setting. It also revises the applicability to include additional airplane models. This amendment is prompted by additional reports of severe vibration in the aft cabin of Model A320 series airplanes and studies that indicate that the primary cause is excessive freeplay in the elevator attachments. The actions specified by this AD are intended to prevent excessive vibration of the elevators, which could result in reduced structural integrity and reduced controllability of the airplane.
AD 2001-17-02 · published Aug 20, 2001, effective Sep 4, 2001
Boeing Model 737-600, -700, and -800 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737-600, -700, and -800 series airplanes. This action requires repetitive inspections for corrosion or cracking of the keel beam splices, and corrective action, if necessary. This action also provides an optional terminating action for the repetitive inspections. This action is necessary to find and fix corrosion or cracking of the keel beam splices, which could result in failure of the keel beam and consequent failure of the forward fuselage of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-11 · published Aug 21, 2001, effective Sep 25, 2001
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD); applicable to certain Boeing Model 737-100, -200, and -200C series airplanes; that requires a one-time inspection of the carriage spindles on the outboard midflap for circumferential score marks; and rework of the carriage spindles or replacement with new or serviceable spindles, if necessary. This action is necessary to prevent severe flap asymmetry due to fractures of both carriage spindles at an outboard midflap, which could result in loss of controllability of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-12 · published Aug 21, 2001, effective Sep 25, 2001
McDonnell Douglas Model DC-10-10, -15, -30, and -30F (KC-10A Military) Series Airplanes, and Model MD-10-10F and -30F Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10-10, -15, -30, and -30F (KC-10A military) series airplanes, and Model MD-10-10F and - 30F series airplanes, that currently requires repetitive inspections to determine the condition of the lockwires on the forward engine mount bolts and correction of any discrepancies found. That AD also provides for optional terminating actions for the repetitive inspections. This amendment requires accomplishment of the previously optional terminating actions. This amendment is prompted by a report of discrepant forward engine mount bolts at the number 3 engine. The actions specified by this AD are intended to prevent broken lockwires, which could result in loosening of the engine mount bolts, and consequent separation of the engine from the airplane.
AD 2001-17-03 · published Aug 21, 2001, effective Sep 5, 2001
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to all EMBRAER Model EMB-135 and -145 series airplanes. This action requires repetitive inspections of the engine thrust reverser stow/transit switches, and corrective action, if necessary. This action is necessary to prevent erroneous signals in the Engine Indicating and Crew Alerting System (EICAS) caused by internal corrosion of the thrust reverser stow/transit switches, which could result in uncommanded loss of engine power in flight, or unnecessary aborted takeoffs on the ground. This action is intended to address the identified unsafe condition.
AD 2001-17-04 · published Aug 21, 2001, effective Sep 5, 2001
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135ER and -135LR Series Airplanes, and Model EMB-145, -145ER, -145MR, and -145LR Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain EMBRAER Model EMB-135ER and -135LR series airplanes, and Model EMB-145, -145ER, -145MR, and -145LR series airplanes. This action requires a one-time visual inspection to determine if the two bonding jumpers that connect the horizontal stabilizer to the vertical stabilizer are properly installed, and replacement of the jumper with a new jumper, if necessary. This action also requires a one-time visual inspection to determine if the supports that connect the bonding jumpers to the horizontal stabilizer are deformed, and corrective actions, if necessary. This action is necessary to prevent severed bonding jumpers in the event of a lightning strike, which could result in reduced elevator control capability, and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
AD 2000-17-10 R1 · published Aug 22, 2001, effective Sep 26, 2001
Lockheed Model L-1011 Series Airplanes
This amendment revises an existing airworthiness directive (AD), applicable to all Lockheed Model L-1011-385 series airplanes, that currently requires modifications of the engine turbine cooling air panel at the flight engineer/second officer's console, pilot's caution and warning light panel on the main instrument panel, and monitoring system for the engine turbine air temperature. That AD was prompted by reports of an undetected fire breaching the high speed gearbox (HSGB) case on certain Rolls Royce engines installed on in-service airplanes due to lack of an internal fire detection system within the HSGB. The actions specified by that AD are intended to prevent undetected fires originating within the HSGB from breaching the HSGB case, which could result in engine damage and increased difficulty in extinguishing a fire. This action removes certain airplanes from the applicability of the existing AD.
AD 2001-16-10 · published Aug 22, 2001, effective Sep 26, 2001
Aerospatiale Model ATR42-200, -300, -320, and -500 Series Airplanes; and Model ATR72 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Aerospatiale Model ATR42-200, -300, -320, and -500 series airplanes; and all Model ATR72 series airplanes. The AD requires revising the Airplane Flight Manual to modify procedures for calculating takeoff performance when Type II or IV de-icing or anti- icing fluids have been used. This amendment is prompted by reports that use of these de-icing or anti-icing fluids may result in an increase in the pitch forces necessary to rotate the airplane during takeoff. This condition could result in a delayed takeoff or even late aborted takeoff. The actions specified by this AD are intended to ensure that the flight crew is advised of the potential effects of Type II or IV de-icing or anti-icing fluids on the airplane's performance during takeoff, and to ensure that the flight crew is advised of the revised performance calculations for takeoff to address these effects.
AD 2001-17-05 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires a one-time general visual inspection of the electrical wiring of the right side of the cockpit to determine if the electrical wiring is chafing against the observer station and to detect damaged wires; and corrective actions, if necessary. This action is necessary to prevent chafing and damage to electrical wires of the cockpit and consequent electrical arcing due to wires that were routed improperly during production of the airplane, which could result in fire and smoke in the airplane. This action is intended to address the identified unsafe condition.
AD 2001-17-06 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires replacement of the cargo roller circuit breakers with new circuit breakers, and reidentification of the aft circuit breaker panel; as applicable. This action is necessary to prevent possible overheating of cargo control unit components, which could result in smoke and/or fire in the cargo compartment. This action is intended to address the identified unsafe condition.
AD 2001-17-07 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires replacement of the insulation blankets of the forward and center cargo compartments in the area of the cargo control units (CCU) with new insulation blankets. This action is necessary to protect against electrical failures in the CCUs, which could result in sparks or flame in the CCU container and lead to fire in the insulation blanket or adjacent equipment. This action is intended to address the identified unsafe condition.
AD 2001-17-08 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires performing a general visual inspection to detect chafing or damage of the parallel power feeder cables of the number 2 integrated drive generator (IDG); repairing any chafed cable and damaged structure; and repositioning the parallel power feeder cables of the number 2 IDG. This action is necessary to prevent chafing and arcing of the parallel feeder cables of the number 2 IDG, which could result in smoke and/or fire in the right aft galley area. This action is intended to address the identified unsafe condition.
AD 2001-17-09 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires an inspection of the upper avionics circuit breaker panel at the main observer's station to detect damage of the wires and to verify the correct routing of the wire bundles; corrective actions, if necessary; and installation of a new clamp, spacer, and sta-straps. This action is necessary to prevent chafing in the upper avionics circuit breaker panel of the main observer's station, which could result in arcing and consequent smoke and/or fire in the cockpit. This action is intended to address the identified unsafe condition.
AD 2001-17-10 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that currently requires a one-time inspection to detect riding, chafing, or damage of the wire bundles adjacent to the disconnect panel bracket of the observer's station. That AD also requires repair or replacement of damaged wires with new or serviceable wires; installation of anti-chafing sleeving on the wire bundles, if necessary; and installation of a grommet along the entire upper aft edge of the disconnect panel bracket. This amendment requires an identical one-time inspection, follow-on actions, and similar corrective actions, if necessary; but the installation of anti-chafing sleeving will be required for all airplanes. The actions specified by this AD are intended to detect riding or chafing of the wire bundles adjacent to the disconnect panel bracket assembly, which could result in a fire in the wire bundles and smoke in the cockpit. This action is intended to address the identified unsafe condition.
AD 2001-17-11 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires an inspection to detect arcing damage of the electrical cables leading to the hydraulic pump terminal strips and the surrounding structure in the wheel well area of the right main landing gear (MLG); and corrective actions, if necessary. This AD also requires replacement of a certain terminal strip with a new terminal strip, and removal of the applicable nameplate in the wheel well of the right MLG. For certain airplanes, this AD also requires, as an alternative, an inspection of the terminal strip to determine if the correct washer is installed, and replacement of the incorrect washer with a new washer. This action is necessary to prevent arcing damage to the terminal strips and damage to the adjacent structure of the wheel well area of the right MLG, which could result in a fire in the wheel well of the right MLG. This action is intended to address the identified unsafe condition.
AD 2001-17-12 · published Aug 22, 2001, effective Sep 26, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that currently requires replacement of the air driven generator (ADG) wire assembly with a new, increased length wire assembly. This amendment requires, among other actions, replacement of the existing ADG wire assembly in the right air conditioning compartment with a certain new wire assembly. This amendment is prompted by an investigation that revealed the length of the new wire assembly is too long and causes the assembly to chafe against the left emergency alternating current bus of the ADG. The actions specified by this AD are intended to prevent loss of the charging capability of the airplane battery due to chafing. Loss of the charging capability of the airplane battery, coupled with a loss of all normal electrical power, could prevent continued safe flight and landing of the airplane.
AD 2001-16-13 · published Aug 23, 2001, effective Sep 7, 2001
Airbus Model A330 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Model A330 series airplanes. This action requires a one-time roto-test inspection of fastener holes of certain fuselage joints for cracks and reinforcement of the fuselage between frames 31 and 37.1. If cracks are detected, this action requires a follow-up high frequency eddy current (HFEC) inspection and repair. This action is necessary to prevent fatigue cracking of the fuselage longitudinal buttstrap, which could result in reduced structural integrity of the fuselage. This action is intended to address the identified unsafe condition.
AD 2001-16-15 · published Aug 23, 2001, effective Sep 7, 2001
BAe Systems (Operations) Limited Model Avro 146-RJ85A and 146-RJ100A Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain BAe Systems (Operations) Limited Model Avro 146- RJ85A and 146-RJ100A series airplanes. This action requires replacement of bolts in the wing rear spar at the center fuel tank. This action is prompted by mandatory continuing airworthiness information from a foreign civil airworthiness authority. This action is necessary to prevent the failure of bolts in the wing rear spar at the center fuel tank, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.
AD 2001-16-16 · published Aug 23, 2001, effective Sep 7, 2001
Airbus Model A330 and A340 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to all Airbus Model A330 and A340 series airplanes. This action requires a one-time inspection to detect cracking of the bogie beams of the main landing gear (MLG), and follow-on actions, if necessary. This action is necessary to detect and correct cracking of the MLG bogie beams, which could result in failure of the beams and consequent loss of the landing gear wheels and brakes, and structural damage to the MLG strut and airframe. This action is intended to address the identified unsafe condition.
AD 2001-13-19 · published Aug 27, 2001, effective Aug 10, 2001
Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, -314, and -315 Series Airplanes
This document corrects information in an existing airworthiness directive (AD) that applies to all Bombardier Model DHC- 8-102, -103, -106, -201, -202, -301, -311, -314, and -315 series airplanes. That AD currently requires revising the Bombardier maintenance program to incorporate repetitive inspections to detect fatigue cracking in certain structures; and corrective actions, if necessary. This document corrects certain airplane models specified in Table 1 of the final rule. This correction is necessary to ensure that operators are notified of the correct airplane models, as specified in Canadian airworthiness directive CF-2000-07, dated March 3, 2000, and de Havilland Temporary Revision TR AWL 2-15, dated September 3, 1999.
AD 2001-17-18 · published Aug 27, 2001, effective Oct 1, 2001
Boeing Model 737-100, -200, and -200C Series Airplanes
This amendment adopts a new airworthiness directive (AD); applicable to certain Boeing Model 737-100, -200, and -200C series airplanes; that requires repetitive inspections of certain floor beams and transverse beams, and corrective actions, if necessary. For certain airplanes, this AD also provides optional terminating action for the repetitive inspections. The actions specified by this AD are intended to detect and correct cracking at the aileron control quadrant cutouts and in the cabin floor beams and pressure web transverse beams above the main wheel well, which could result in rapid loss of cabin pressure and reduced structural integrity of the airframe.
AD 2001-17-19 · published Aug 27, 2001, effective Oct 1, 2001
McDonnell Douglas Model DC-10 Series Airplanes, and KC-10A and KDC-10 (Military) Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all McDonnell Douglas Model DC-10 series airplanes, and KC-10A and KDC-10 (military) airplanes, that requires certain modifications of the thrust reverser control and indication system and wiring on each engine. This amendment is prompted by a determination that the current thrust reverser systems do not adequately preclude unwanted deployment of a thrust reverser. These actions are necessary to prevent unwanted deployment of a thrust reverser, which could significantly jeopardize continued safety of flight and landing of the airplane.
AD 2001-17-20 · published Aug 27, 2001, effective Oct 1, 2001
Boeing Model 707 and 720 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 707 and 720 series airplanes, that requires replacement of wiring for the fuel boost pumps and override pumps with new wiring, installation of Teflon sleeving on the wiring, and associated actions. This amendment also requires repetitive inspections to detect damage of the wiring or evidence of a fuel leak. This amendment is necessary to detect and correct damaged wiring for the fuel boost pumps and override pumps, which could cause electrical arcing that could puncture the conduit containing the wire, and result in an explosion or fire adjacent to the fuel tank. This action is intended to address the identified unsafe condition.
AD 2001-17-21 · published Aug 27, 2001, effective Oct 1, 2001
McDonnell Douglas Model 717 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model 717 series airplanes, that requires repetitive inspections of the rod ends of the spoiler hold-down actuators for breakage along the intersection of the thread runout and the outer spherical surface of the lug; and replacement of any broken rod end of the spoiler hold-down actuators with a new rod end. This AD also requires replacement of the rod ends of the spoiler hold-down actuators with new rod ends, and reidentification of the spoiler hold-down actuators, which constitutes terminating action for the repetitive inspections. This action is necessary to prevent failure of the rod ends of the spoiler hold-down actuators due to fatigue, which could result in loss of the back-up protection of the spoiler float hold-down and unavailability of monitoring for an uncommanded spoiler movement. This action is intended to address the identified unsafe condition.
AD 2001-17-22 · published Aug 29, 2001, effective Oct 3, 2001
McDonnell Douglas Model DC-10 and MD-10 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10 and MD-10 series airplanes, that requires an inspection of the one phase remote control circuit breakers (RCCB) in the main avionics compartment and center accessory compartment to determine their part numbers and serial numbers, and replacement of RCCB's with certain RCCB's, if necessary. This action is necessary to ensure that defective braze joints of certain latch assemblies of the RCCB are not installed on the airplane. Defective braze joints could fail and prevent the RCCB from tripping during an overload condition, which could result in a fire and smoke in certain wire bundles that are routed to and from the main avionics compartment or center accessory compartment. This action is intended to address the identified unsafe condition.
AD 2001-17-23 · published Aug 29, 2001, effective Oct 3, 2001
Bombardier Model DHC-8-100, -200, and -300 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-8-100, -200, and -300 series airplanes, that requires a one-time detailed visual inspection to detect damage of the ladder plates and access cover areas of the upper surface of the wings; repair, if necessary; and installation of new O- ring seals. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent damage of the upper wing ladder plates, which could result in displacement of the adjacent channel seals and consequent reduced lightning strike protection of the fuel tanks.
AD 2001-17-24 · published Aug 29, 2001, effective Oct 3, 2001
Boeing Model 707 and 720 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 707 and 720 series airplanes, that requires a preventive modification of the front spar fitting on the outboard engine nacelle. This action is necessary to prevent fatigue cracking of the front spar fitting on the outboard engine nacelle, which could reduce the structural integrity of the nacelle, and result in separation of the engine from the airplane. This action is intended to address the identified unsafe condition.
AD 2001-17-25 · published Aug 29, 2001, effective Oct 3, 2001
Boeing Model 747 Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that currently requires inspection of the aft trunnion of the wing landing gear for cracks and corrosion, and corrective action, if necessary. This amendment requires new repetitive inspections for cracks or corrosion of the aft trunnion outer cylinders of the wing landing gear, follow-on actions, and repetitive overhaul of the wing landing gear. The new actions also apply to airplanes not included in the applicability of the existing AD. The actions specified by this AD are intended to find and fix cracking or corrosion of the aft trunnion of the wing landing gear, which could result in collapse of the wing landing gear and consequent reduced controllability of the airplane.
AD 2001-17-26 · published Aug 29, 2001, effective Oct 3, 2001
Raytheon Model DH.125, HS.125, BH.125, and BAe. 125 (U-125 and C-29A) Series Airplanes; Model Hawker 800, Hawker 800 (U-125A), Hawker 800XP, and Hawker 1000 Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Raytheon Model DH.125, HS.125, BH.125, and BAe. 125 (U-125 and C-29A) series airplanes; Model Hawker 800, Hawker 800 (U-125A), Hawker 800XP, and Hawker 1000 airplanes, that requires an inspection for cracking or corrosion of the cylinder head lugs of the main landing gear (MLG) actuator and follow-on/corrective actions. This amendment is prompted by reports of attachment lugs cracking at the actuator cylinder head. The actions specified by this AD are intended to prevent separation of the cylinder head lugs, which could prevent the MLG from extending and result in a partial gear-up landing.
AD 2001-17-27 · published Aug 29, 2001, effective Sep 13, 2001
Israel Aircraft Industries, Ltd., Model Astra SPX and 1125 Westwind Astra Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Israel Aircraft Industries, Ltd., Model Astra SPX and 1125 Westwind Astra series airplanes. This action requires one- time detailed visual and eddy current inspections for cracking of the drag brace on the nose landing gear, and replacement of the drag brace, if necessary. This action is necessary to prevent failure of the nose landing gear. This action is intended to address the identified unsafe condition.
AD 2001-17-28 · published Aug 29, 2001, effective Sep 13, 2001
Boeing Model 767 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to all Boeing Model 767 series airplanes. This action requires a one-time inspection to detect abrasion damage and installation discrepancies of the wire bundles located below the P37 panel, and corrective action, if necessary. This action is necessary to detect and correct such damage and other discrepancies, which could result in arcing to structure and consequent fire or loss of function of affected systems. This action is intended to address the identified unsafe condition.
AD 2001-17-29 · published Aug 29, 2001, effective Sep 13, 2001
Airbus Model A300 B2 and B4 Series Airplanes, and Model A300 B4-600, B4-600R, and F4-600R (Collectively Called A300-600) Series Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Model A300 B2 and B4 series airplanes, and certain Model A300 B4-600, B4-600R, and F4-600R (collectively called A300-600) series airplanes. This action requires a one-time inspection to detect cracks in gear rib 5 (left and right) of the main landing gear (MLG) attachment fittings at the lower flange and vertical web, and repair if necessary. This action is necessary to detect and correct fatigue cracking of the MLG attachment fittings, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.
AD 98-24-02 R1 · published Aug 29, 2001, effective Oct 3, 2001
McDonnell Douglas Model MD-11 Series Airplanes
This amendment revises an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires a one-time inspection to identify the part numbers of two dimmer controls for the overhead instrument panel light and circuit breaker lightplate located in the flight compartment. For airplanes on which a dimmer control having an incorrect part number is installed, that AD also requires replacing the dimmer control with a new part; modifying and reinstalling the existing dimmer control; or reinstalling a dimmer control following modification of the part by the part manufacturer. That AD was prompted by reports of smoke emitting from the overhead panels in the cockpit area. The actions specified by that AD are intended to prevent an electrical failure in the overhead dimmer control due to overheating of a printed circuit board capacitor in the dimmer control, which could result in rupture of the capacitor and smoke in the flight compartment. This amendment revises the term "serial numbers" in the applicability statement to "fuselage numbers."
AD 2001-17-34 · published Aug 30, 2001, effective Oct 4, 2001
McDonnell Douglas Model DC-9-81, -82, -83, and -87 Series Airplanes, and Model MD-88 Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-81, -82, -83, and -87 series airplanes, and Model MD-88 airplanes, that currently requires an inspection to detect damage, burn marks, or discoloration at certain electrical plugs and receptacles of the sidewall lighting in the passenger cabin, and correction of discrepancies. That AD also requires modification of the electrical connectors, which terminates the inspection requirement. That action was prompted by reports of failures of the electrical connectors in the sidewall fluorescent lighting, which resulted in smoke or lighting interruption in the passenger cabin. This amendment expands the applicability of the existing AD to include additional airplanes. This amendment is intended to prevent failures of the electrical connectors, which could result in poor socket/pin contact, excessive heat, electrical arcing, and subsequently, connector burn-through and smoke and/or fire in the passenger cabin.
AD 2001-15-19 · published Aug 2, 2001, effective Sep 6, 2001
Eurocopter France Model AS-365N3 Helicopters
This amendment adopts a new airworthiness directive (AD) for Eurocopter France (ECF) Model AS-365N3 helicopters that requires modifying the Full Authority Digital Engine Control (FADEC) software within 90 days after the effective date of this AD. This amendment is prompted by a design problem in the FADEC "power loss printed circuit board" software found during laboratory testing. The actions specified by this AD are intended to prevent loss of the FADEC one-engine- inoperative power and subsequent loss of control of the helicopter.
AD 2001-17-16 · published Aug 29, 2001, effective Sep 13, 2001
Agusta S.p.A. Model A109E Helicopters
This amendment supersedes an existing airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model A109E helicopters that currently requires visually checking and inspecting each tail rotor blade (blade) for a crack at specified intervals. That AD also requires replacing any cracked blade with an airworthy blade. This amendment contains the same requirements but adds another blade to the applicability. This amendment is necessary because the added blade is manufactured using the same process as the blade that failed. The actions specified by this AD are intended to prevent failure of a blade and subsequent loss of control of the helicopter.
AD 2001-17-17 · published Aug 29, 2001
Bell Helicopter Textron, Inc. Model 47B, 47B-3, 47D, 47D-1, 47G, 47G-2, 47G2A, 47G-2A-1, 47G-3, 47G-3B, 47G-3B-1, 47G-3B-2, 47G-3B-2A, 47G-4, 47G-4A, 47G-5, 47G-5A, 47H-1, 47J, 47J-2, 47J-2A, and 47K Helicopters
This amendment supersedes an existing airworthiness directive (AD) that applies to Bell Helicopter Textron, Inc. (BHTI) Model 47B, 47B-3, 47D, 47D-1, 47G, 47G-2, 47G2A, 47G-2A-1, 47G-3, 47G-3B, 47G-3B- 1, 47G-3B-2, 47G-3B-2A, 47G-4, 47G-4A, 47G-5, 47G-5A, 47H-1, 47J, 47J- 2, 47J-2A, and 47K helicopters. That AD currently requires either recurring liquid penetrant or eddy current inspections of the main rotor blade grip (grip) threads for a crack. If a crack is detected, that AD requires, before further flight, replacing the cracked grip with an airworthy grip. That AD also establishes a retirement life of 1200 hours time-in-service (TIS) for each grip. This AD contains the same requirements as the existing AD but adds two part numbers (P/N) to the applicability and requires only recurring eddy current inspections of the grip threads. This AD also requires reporting any results of the grip inspections to the FAA Rotorcraft Certification Office. This AD is prompted by the results of an accident investigation, an operator survey conducted by a trade association, various comments concerning the current AD, and a further analysis of field service data. The actions specified by this AD are intended to prevent failure of a grip, loss of a main rotor blade, and subsequent loss of control of the helicopter.
AD 2001-17-32 · published Aug 30, 2001, effective Oct 4, 2001
Eurocopter France Model AS350B, B1, B2, B3, BA, D, D1 and AS355E, F, F1, F2, and N Helicopters
This amendment supersedes an existing airworthiness directive (AD) that applies to Eurocopter France (ECF) Model AS350B, B1, B2, B3, BA, D, AS355E, F, F1, F2, and N helicopters. That AD requires inspecting certain versions of the tail rotor pitch change spider assembly (spider assembly) for the proper rotational torque, axial play, and any brinelling of the bearing. This AD requires identifying the spider assembly with index marks to detect bearing spacer rotation, visually checking to ensure that the index marks are aligned before the first flight of each day, and subsequently modifying the spider assembly. This AD also adds the ECF Model AS350D1 helicopters to the applicability. This AD is prompted by operator reports that the spider assembly bearing spacers are rotating. The actions specified by this AD are intended to detect rotation of the spider assembly bearing spacers, prevent seizure of the bearing, loss of tail rotor control, and subsequent loss of control of the helicopter.
AD 2001-17-33 · published Aug 30, 2001, effective Sep 14, 2001
Agusta Model AB412 Helicopters
This amendment adopts a new airworthiness directive (AD) for Agusta Model AB412 helicopters. This action prohibits use of the hoist until certain modifications are accomplished. This amendment is prompted by the loss of a hoist hook during flight due to an uncommanded firing of the cable cutter cartridge caused by wire chafing. The actions specified in this AD are intended to prevent wire chafing, inadvertent firing of the cable cutter cartridge, loss of a hoist hook and section of cable, impact with the main or tail rotor, and subsequent loss of control of the helicopter.
AD 2001-16-05 · published Aug 10, 2001, effective Oct 9, 2001
Various Engines
This amendment supersedes an existing airworthiness directive (AD) that is applicable to Rolls-Royce plc. (RR) RB211 Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. That AD currently requires the removal of low pressure compressor (LPC) fan blades, initial and repetitive ultrasonic inspections for cracks in LPC fan blade dovetail roots, and if necessary, replacement with serviceable parts. This amendment requires earlier initial and more frequent repetitive ultrasonic inspections of LPC fan blades, with inspection thresholds and intervals specified by engine model. This amendment is prompted by data collected by RR, that identifies the need to inspect LPC fan blade dovetail roots at an earlier initial threshold and at more frequent intervals than is required by the existing AD. The actions specified in this AD are intended to prevent possible multiple LPC fan blade failures, which could result in an uncontained engine failure and damage to the airplane.
AD 2001-17-14 · published Aug 23, 2001, effective Sep 7, 2001
CFM International CFM56 Series Turbofan Engines
This amendment adopts a new airworthiness directive (AD) that is applicable to CFM International (CFMI) CFM56-5C4/1 series turbofan engines. This action requires that the LPT conical support, P/N 337- 002-407-0, installed in CFM56-5C4/1 engines, be removed from service at or before reaching the cyclic life limit of 9,350 cycles-since-new (CSN). This amendment is prompted by the discovery of an error in the Time Limits Section of Chapter 5 of the CFM56-5C Engine Shop Manual. The manual incorrectly lists the published cyclic life limit of the CFMI CFM56-5C4/1 LPT conical support, (P/N) 337-002-407-0, as 15,000 CSN, rather than the certified value of 9,350 CSN. The actions specified in this AD are intended to prevent LPT conical supports from remaining in service beyond their certified cyclic life limit, which could result in an uncontained engine failure and damage to the airplane.
AD 2001-17-15 · published Aug 27, 2001, effective Oct 1, 2001
Honeywell International Inc. Engines
This amendment supersedes an existing airworthiness directive (AD), AD 95-09-02, that applies to Honeywell International Inc. (formerly AlliedSignal Inc. and Textron Lycoming Inc.) LTS101 series turboshaft and LTP101 series turboprop engines. That AD superseded priority letter AD 94-19-01 and currently requires initial and repetitive inspections of the engine fuel pump internal drive splines for wear and replacement of engine fuel pumps that exhibit wear beyond specified limits.This amendment requires a reduction in inspection intervals for the engine fuel pump internal drive splines. This amendment is prompted by a report from the engine manufacturer that 13 percent of the pumps installed on aircraft that were returned from the field for the required 900-hour interval inspection revealed excessive internal drive spline wear. The actions specified by this AD are intended to prevent worn splines in fuel pumps which could cause engine fuel pump failure, which can result in totalengine power loss and possible loss of the aircraft.
AD 2001-17-30 · published Aug 30, 2001, effective Oct 4, 2001
Pratt & Whitney JT9D-7R4 Series Turbofan Engines
This amendment adopts a new airworthiness directive (AD), that is applicable to Pratt & Whitney JT9D-7R4 series turbofan engines. This amendment requires initial and repetitive fluorescent penetrant inspection (FPI) of the high pressure turbine (HPT) 1st stage disk aft lugs, and if the aft lug(s) are cracked, replacement of the HPT 1st stage disk and HPT 1st stage airseals. Also, for certain configuration HPT disk assemblies, this amendment requires replacement of the HPT 1st stage airseals with newly designed airseals at the next accessibility. This amendment is prompted by reports of cracks in HPT 1st stage disk firtrees and failure of firtree lugs. The actions specified by this AD are intended to prevent 1st stage HPT disk firtree fracture, which could result in an uncontained engine failure, and damage to the airplane.
AD 2001-17-31 · published Aug 31, 2001, effective Oct 5, 2001
Rolls-Royce Corporation (Formerly Allison Engine Company) AE 2100 Turboprop and AE 3007 Turbofan Series Engines
This amendment adopts a new airworthiness directive (AD), that is applicable to Rolls-Royce Corporation (formerly Allison Engine Company) AE 2100 turboprop and AE 3007 turbofan series engines. This amendment requires a one-time acid etch inspection of the 2nd stage high pressure turbine (HPT) wheel for evidence of damaged material indicating that a higher probability of cracking in future service exists. If the etch inspection reveals damage, this AD requires replacement of the turbine wheel with a serviceable part. This amendment is prompted by a report of a 2nd stage HPT wheel that was returned from the field with cracks in the aft bore face. The actions specified by this AD are intended to detect and prevent early development of cracks due to low cycle fatigue of the 2nd stage HPT wheel in the aft bore face that can lead to wheel failure, power loss, and possible damage to the airplane.
AD 2001-17-13 · published Aug 22, 2001, effective Sep 11, 2001
JanAero Devices Part Number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, and C23D04 Fuel Regulator Shutoff Valves
This amendment supersedes Airworthiness Directive (AD) 2001- 08-01, which applies to certain JanAero Devices (JanAero) 14D11 and 23D04 series fuel regulator shutoff valves used with certain JanAero combustion heaters that are installed on aircraft. AD 2001-08-01 currently requires you to visually inspect and pressure test these fuel regulator shutoff valves for leaks, and, if leaks are found, replace the fuel regulator shutoff valve. Numerous reports of fuel regulator shutoff valves leaking fuel caused the Federal Aviation Administration (FAA) to issue AD 2001-08-01. This amendment retains the actions of AD 2001-08- 01, except only the visual inspection or the pressure test will be required instead of both. This amendment also specifically calls out the fuel regulator shutoff valves by part number instead of series, includes provisions for disabling the heater as an alternative method of compliance, and makes other minor clarifying revisions and additions to the AD. The actions specified by this AD are intended to eliminate or severely reduce the potential for fuel leakage in aircraft with these combustion heaters, which could result in an aircraft fire with consequent damage or destruction.
