51 Airworthiness Directives: 42 airplane, 7 engine, 1 propeller, 1 appliance.
AD 96-11-17 · published Jun 4, 1996, effective Jul 9, 1996
Textron Aviation Inc. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Beech (Raytheon) Model BAe 125 series 1000A and Model Hawker 1000 airplanes, that requires a one-time inspection for adequate clearances between, and damage to, the flap cables and turnbuckles, airbrakes cables and turnbuckles, and all other flight control cables and turnbuckles at keel subframe 15A; and various follow-on actions, if necessary. This amendment is prompted by reports of chafing due to insufficient clearance between the flaps turnbuckle and the subframe, and between the airbrakes cable and the subframe. The actions specified by this AD are intended to prevent such chafing, which could result in damage to the flaps turnbuckle and the airbrakes cable, and subsequent fraying or seizing of the flight control cables. These conditions, if not corrected, could result in restriction or loss of the flight controls.
AD 96-11-18 · published Jun 4, 1996, effective Jul 9, 1996
McDonnell Douglas Model DC-9-80 Series Airplanes, and Model MD-88 and MD-90 Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-80 series airplanes, and Model MD-88 and MD-90 airplanes, that requires a one-time measurement of the length of the oxygen mask lanyards of the passenger service unit (PSU), and modification of lanyards that are longer than the proper length. This amendment is prompted by a report that the length of the oxygen mask lanyards of the PSU were found to be too long, apparently due to improper installation during production. The actions specified by this AD are intended to ensure that the length of these oxygen mask lanyards is correct, so that the oxygen canister will be properly activated when needed during an emergency.
AD 96-12-02 · published Jun 5, 1996, effective Jul 10, 1996
Airbus Model A300 B2 and B4 Series Airplanes, Excluding Model A300-600 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300 B2 and B4 series airplanes, that requires measurements of the thickness of the inner skin of the longitudinal lap joint from the inside of the fuselage at certain stringers. This amendment also requires inspections to detect stress corrosion cracking in the subject area, and repair, if necessary. This amendment is prompted by reports of stress corrosion cracking found in the skin at the longitudinal lap joint at certain stringers of the fuselage, which was caused by the increased stress level in the subject area when it was reworked beyond certain limits. The actions specified by this AD are intended to prevent such stress corrosion cracking which, if not detected and corrected in a timely manner, could result in rapid depressurization of the airplane.
AD 96-12-03 · published Jun 6, 1996, effective Jun 24, 1996
Aviat Aircraft, Inc. Models S-1S, S-1T, S-2, S-2A, S-2S, and S-2B Airplanes (Formerly Known as Pitts Models S- 1S, S-1T, S-2, S-2A, S-2S, and S-2B Airplanes)
This amendment adopts a new airworthiness directive (AD) that applies to certain Aviat Aircraft, Inc. (Aviat) Models S-1S, S-1T, S-2, S-2A, S-2S, and S-2B airplanes that are equipped with aft lower fuselage wing attach fittings incorporating either part number (P/N) 76090, 2-2107-1, or 1-210-102. This action requires repetitively inspecting the aft lower fuselage wing attach fitting on both wings for cracks and modifying any cracked aft lower fuselage wing attach fitting. Modifying the aft lower fuselage wing attach fitting on both wings eliminates the repetitive inspection requirement of the AD. Several reports of cracked fuselage wing attach fittings on the affected airplanes prompted this action. The actions specified by this AD are intended to prevent possible in-flight separation of the wing from the airplane caused by a cracked fuselage wing attach fitting.
AD 96-12-08 · published Jun 6, 1996, effective Jun 27, 1996
Twin Commander Aircraft LLC Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to Twin Commander Aircraft Corporation (Twin Commander) 500, 680, and 690 series airplanes that do not have a nose landing gear drag link bolt with the manufacturer s serial number, manufacture date, and the last three digits of the drawing number, 055, on the bolt head. This action requires replacing the nose landing gear (NLG) drag link bolt with one that has been manufactured with the proper heat treatment. This action was prompted by the failure of an improperly heat treated NLG drag link bolt causing collapse of the nose landing gear on a certain Twin Commander Model 690B airplane while taxiing. The actions specified by this AD are intended to prevent the NLG from collapsing, which if not corrected, could result in loss of the airplane.
AD 96-12-11 · published Jun 6, 1996, effective Jun 21, 1996
Bombardier Inc. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Canadair Model CL-215-1A10 series airplanes. This action requires repetitive inspections to detect discrepancies of the microswitches fitted at the water door actuator, and replacement of any discrepant microswitch. This action also requires a terminating action for the repetitive inspections. This amendment is prompted by a report indicating that the water doors on one airplane opened inadvertently during flight, due to corrosion of the microswitches fitted to the water door actuator. The actions specified in this AD are intended to prevent such uncommanded opening of the water doors, especially at high speed during a takeoff run, a water pick-up run, or a landing run, which could cause damage to the airplane.
AD 96-12-18 · published Jun 7, 1996, effective Jul 12, 1996
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to all McDonnell Douglas Model DC-10 series airplanes and Model MD-11F airplanes. Among other things, this amendment requires repetitive leak checks of the lavatory drain system and repair, if necessary; provides for the option of revising the FAA-approved maintenance program to include a schedule of leak checks; and requires the installation of a cap on the flush/fill line. This amendment is prompted by continuing reports of damage to engines and airframes, separation of engines from airplanes, and damage to property on the ground, caused by "blue ice" that forms from leaking lavatory drain systems on transport category airplanes and subsequently dislodges from the airplane fuselage. The actions specified by this AD are intended to prevent such damage associated with the problems of "blue ice."
AD 96-10-01 · published Jun 10, 1996, effective Jun 10, 1996
Piper Aircraft, Inc. Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to certain The New Piper Aircraft, Inc. (Piper) Models PA-28-140, PA-28-150, PA-28-160, and PA-28-180 airplanes. This action requires a complete landing light support replacement. This AD action is prompted by reports of two accidents and two incidents resulting from the landing light retainer support seal breaking apart and entering the carburetor. The actions specified by this AD are intended to prevent the landing light retainer support seal from being ingested by the updraft carburetor, which, if not detected and corrected, could result in rough engine operation or possible engine failure and loss of control of the airplane.
AD 96-12-15 · published Jun 10, 1996, effective Jul 15, 1996
Airbus Industrie Model A300, A310, and A300-600 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300, A310, and A300-600 series airplanes, that requires inspections to detect missing fasteners, cracked fitting angles, and elongated fastener holes in certain frames, and correction of discrepancies. It also provides an optional terminating action. This amendment is prompted by discrepancies found at the fitting angles on the frame at which a certain electronic rack is attached. The actions specified by this AD are intended to prevent damage propagation that could lead to failure of the rack-to-structure attachment points, and subsequently could result in loss of airplane systems, structural damage, and possible electrical arcing.
AD 96-12-16 · published Jun 10, 1996, effective Jul 15, 1996
Textron Aviation Inc. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Beech (Raytheon) Model BAe 125 series 800A and Model Hawker 800 airplanes, that requires modification of the airframe structure in the lower area of the fuselage aft of the wing rear spar. For certain airplanes, this amendment also requires a functional test to determine if a particular bolt fouls the flap control system. This amendment is prompted by reports of restricted control of the aileron due to water accumulation that froze in the area around an aileron pulley located in the lower area of the fuselage aft of the wing rear spar. The actions specified by this AD are intended to prevent such water accumulation, which could freeze and result in restricted control of the ailerons; subsequently, this could reduce the pilot's ability to initiate roll control during critical phases of flight.
AD 96-12-17 · published Jun 10, 1996, effective Jul 15, 1996
Textron Aviation Inc. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Beech (Raytheon) Model BAe 125 series 800A and 1000A, and Model Hawker 800 and 1000 airplanes, that requires an inspection to determine if the diode soldered connections are clean and functionally sound. This amendment also requires remake of the soldered connection and replacement of the diode with a new diode, if necessary. This amendment is prompted by reports of imperfect soldered connections in the engine starting and battery emergency control circuit. The actions specified by this AD are intended to prevent incorrect fault displays in the cockpit and intermittent fault symptoms in the engine starting and battery emergency control circuits, as a result of imperfect soldered connections.
AD 96-12-20 · published Jun 10, 1996, effective Jul 15, 1996
Lockheed Martin Corporation Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Lockheed Model 382, 382B, 382E, 382F, and 382G series airplanes, that currently requires visual inspections to detect loose, missing, or deformed fasteners in the upper truss mounts of certain engines, inspections to detect cracking in the associated tangs, and replacement of damaged parts. This amendment adds a requirement for repetitive ultrasonic inspections to detect cracking of the upper tangs and replacement of cracked parts. This amendment also provides for an optional terminating action for the repetitive inspections, and revises the applicability of the rule to specify groupings of airplanes. This amendment is prompted by reports indicating that fatigue cracking of the tangs of the upper truss mount has been detected. The actions specified by this AD are intended to prevent multiple failures of the upper truss mounts due to problems associated with fatigue cracking, which could adversely affect the integrity of the engine mount structure. The incorporation by reference of Hercules Service Bulletin 382-71-20, dated March 18, 1994, as listed in the regulations, is approved by the Director of the Federal Register as of July 15, 1996. The incorporation by reference of Lockheed Alert Service Bulletin A382-71-19/A82-687, dated December 23, 1993, as listed in the regulations, was approved previously by the Director of the Federal Register as of February 18, 1994 (59 FR 5078, February 3, 1994).
AD 96-09-12 · published Jun 11, 1996, effective Jun 11, 1996
Embraer S.A. Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to Empresa Brasileiro de Aeronautico, S.A. (EMBRAER) Models EMB-110P1 and EMB-110P2 airplanes. This action requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in freezing rain or freezing drizzle conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-13 · published Jun 11, 1996, effective Jun 11, 1996
Textron Aviation Inc. Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to all Beech Aircraft Corporation (Beech) Models 99, 99A, A99A, B99, C99, B200, B200C, 1900, 1900C, and 1900D airplanes. This action requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in freezing rain or freezing drizzle conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-14 · published Jun 11, 1996, effective Jun 11, 1996
Dornier Luftfahrt GmbH Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to all Dornier 228 series airplanes. This action requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in freezing rain or freezing drizzle conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-16 · published Jun 11, 1996, effective Jun 11, 1996
M7 Aerospace LLC Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to all Fairchild Aircraft SA226 and SA227 series airplanes. This action requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in freezing rain or freezing drizzle conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-17 · published Jun 11, 1996, effective Jun 11, 1996
British Aerospace Regional Aircraft Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to all Jetstream Aircraft Limited (JAL) Jetstream Models 3101 and 3201 airplanes. This action requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in freezing rain or freezing drizzle conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-18 · published Jun 11, 1996, effective Jun 11, 1996
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Jetstream Model BAe ATP airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-19 · published Jun 11, 1996, effective Jun 11, 1996
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Jetstream Model 4101 airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to prevent minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-20 · published Jun 11, 1996, effective Jun 11, 1996
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace Model HS 748 series airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-21 · published Jun 11, 1996, effective Jun 11, 1996
Saab AB, Saab Aerosystems Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Saab Model SAAB SF340A, SAAB 340B, and SAAB 2000 series airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-23 · published Jun 11, 1996, effective Jun 11, 1996
328 Support Services GmbH Airplanes
AD 96-09-24 · published Jun 11, 1996, effective Jun 11, 1996
Embraer - Empresa Brasileira de Aeronautica S.A. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all EMBRAER Model EMB-120 series airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-25 · published Jun 11, 1996, effective Jun 11, 1996
Bombardier Inc., Viking Air Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all de Havilland Model DHC-7 and DHC-8 series airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-26 · published Jun 11, 1996, effective Jun 11, 1996
Fokker Services Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes, and Model F27 Mark 050 series airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-09-27 · published Jun 11, 1996, effective Jun 11, 1996
Short Brothers PLC Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Short Brothers Model SD3-30, SD3-60, and SD3-SHERPA series airplanes, that requires revising the Airplane Flight Manual (AFM) to provide the flight crew with recognition cues for, and procedures for exiting from, severe icing conditions, and to limit or prohibit the use of various flight control devices. This amendment is prompted by results of a review of the requirements for certification of the airplane in icing conditions, new information on the icing environment, and icing data provided currently to the flight crews. The actions specified by this AD are intended to minimize the potential hazards associated with operating the airplane in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.
AD 96-12-13 · published Jun 11, 1996, effective Jun 26, 1996
Dornier Model 328 Series Airplanes Equipped with Honeywell GP-300 Guidance and Display Controller
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Dornier Model 328 series airplanes. This action requires modification of certain Honeywell GP-300 guidance and display controllers. This amendment is prompted by reports of smoke and fumes, due to a defective light bulb, emitting from the Honeywell GP- 300 guidance and display controller; and a report of failure of the autopilot to disconnect manually. The actions specified in this AD are intended to prevent a defective light bulb from causing a short circuit that emits smoke and fumes into the cockpit; or causing damage to the circuit cards and various components, which may lock the autopilot into the engaged mode. Locking of the autopilot into the engaged mode could lead to the inability of the pilot to disconnect the autopilot, which could result in reduced controllability of the airplane.
AD 96-12-24 · published Jun 12, 1996, effective Jun 27, 1996
Lockheed Aircraft Corporation Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to all Lockheed Model L-1011-385 series airplanes. This action requires inspections to detect cracking and other discrepancies of certain web-to-cap fasteners of the rear spar between inner wing stations (IWS) 310 and 343, and of the web area around those fasteners; and various follow-on actions. This AD also provides for an optional modification which, if accomplished, will defer the initiation of the inspections for a certain period of time. This amendment is prompted by a report of fatigue cracking in the web of the rear spar of the wing. The actions specified in this AD are intended to prevent such fatigue cracking, which could result in failure of the rear spar of the wing and consequent fuel spillage.
AD 92-10-13 R1 · published Jun 13, 1996, effective Jun 13, 1996
The Boeing Company Airplanes
AD 96-11-10 · published Jun 13, 1996, effective Jun 13, 1996
Gulfstream Aerospace LP Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain IAI, Ltd., Model 1125 Westwind Astra series airplanes. This action requires a visual inspection for clearance between the hydraulic lines/vacuum lines and the electrical wire bundles, and repair or replacement of damaged lines or wire bundles with serviceable parts. This AD also requires installation of neoprene hose around the affected hydraulic lines and vacuum lines. This amendment is prompted by a report indicating that chafing was found on a hydraulic line. The actions specified in this AD are intended to prevent such chafing, which could result in leakage of hydraulic fluid and subsequent loss of one of the two hydraulic systems.
AD 96-11-15 · published Jun 17, 1996, effective Jun 17, 1996
328 Support Services GmbH Airplanes
AD 96-10-10 · published Jun 18, 1996, effective Jun 18, 1996
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Jetstream Model 4101 airplanes, that requires inspections of the handrail assembly at the main entrance door to detect loose or missing rivets, abnormal movement between the handrail pivot-tube and the spigot that attaches to the bearing assembly, and cracks on the handrail pivot-tube. It also requires repair or replacement of the assembly, if necessary, and provides for two optional terminating actions. This amendment is prompted by a report indicating that fatigue cracks and loose rivets were found on the handrail assembly of the main passenger entrance door on an in-service airplane. The actions specified by this AD are intended to prevent these conditions, which can lead to the failure of the door handrail assembly; such failure could allow the door to fall free and subsequently cause injury to people on the airplane or on the ground.
AD 96-13-01 · published Jun 18, 1996, effective Jul 12, 1996
MDB Flugtechnik AG Model MD3-160 Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to MDB Flugtechnik AG Model MD3-160 airplanes. This action requires inserting a supplement Aircraft Flight Manual (AFM), installing a placard prohibiting aerobatics and spinning, inspecting the nosewheel steering system for damaged parts and improper rigging, and if necessary, replacing the parts and re-rigging the nosewheel steering system (NWS). Two incidents on certain MD3-160 airplanes while in flight causing the airplanes to go into a left spin and loose rudder control prior to landing prompted this AD action. The actions specified by this AD are intended to prevent the rudder pedals from locking up and the nosewheel steering from disengaging, which if not detected and corrected, could cause loss of control of the airplane.
AD 96-13-03 · published Jun 19, 1996, effective Jul 24, 1996
McDonnell Douglas Corporation Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to McDonnell Douglas Model DC-9 and C-9 (military) series airplanes, that currently requires the implementation of a program of structural inspections to detect and correct fatigue cracking in order to ensure the continued airworthiness of these airplanes as they approach the manufacturer's original fatigue design life goal. This amendment requires, among other things, revision of the existing program to require additional visual inspections of additional structure. This amendment is prompted by new data submitted by the manufacturer indicating that certain revisions to the program are necessary in order to increase the confidence level of the statistical program to ensure timely detection of cracks in various airplane structures. The actions specified by this AD are intended to prevent fatigue cracking that could compromise the structural integrity of these airplanes.
AD 96-10-18 · published Jun 20, 1996, effective Jun 20, 1996
Airbus Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A320-111, -211, -212, and -231 series airplanes, that requires removing the existing forward pintle nut and cross bolt on the main landing gear (MLG), and installing a new nylon spacer and cross bolt and nut. This amendment is prompted by results of fatigue testing which revealed that the cross bolt and nut in the forward pintle pin of the MLG were damaged due to fatigue cracking. The actions specified by this AD are intended to prevent such fatigue cracking, which could result in collapse of the MLG.
AD 96-13-05 · published Jun 21, 1996, effective Jul 26, 1996
Fokker Model F28 Series Airplanes (Excluding Model F28 Mark 0100 Series Airplanes)
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F28 series airplanes, that requires a one-time detailed visual inspection to detect cracking of the elevator gust lock housing and the gust lock support structure, and repair or replacement of cracked parts. This amendment is prompted by a report of failure of an elevator gust lock housing due to fatigue cracking. The actions specified by this AD are intended to prevent fatigue cracking of the elevator gust lock housing and the gust lock support structure, which could result in loss of the elevator and the support structure, and possible consequent loss of primary pitch control.
AD 74-08-09 R2 · published Jun 24, 1996, effective Jul 29, 1996
Aero Spacelines, Incorporated, Airbus, ATR - GIE Avions de Transport Régional, BAE Systems (Operations) Limited, The Boeing Company, Bombardier Inc., EADS CASA, Fokker Services, Gulfstream Aerospace Corporation, Kelowna Flightcraft R & D Ltd., Lockheed Aircraft Corporation, Lockheed Martin Corporation, Martin-Marietta Corporation, Maryland Air Industries, Inc., Mitsubishi
This amendment revises an existing airworthiness directive (AD), applicable to all transport category airplanes, that currently requires installation of placards prohibiting smoking in the lavatory and disposal of cigarettes in the lavatory waste receptacles; establishment of a procedure to announce to airplane occupants that smoking is prohibited in the lavatories; installation of ashtrays at certain locations; and repetitive inspections to ensure that lavatory waste receptacle doors operate correctly. That AD was prompted by fires occurring in lavatories, which were caused by, among other things, the improper disposal of smoking materials in lavatory waste receptacles. The actions specified by that AD are intended to prevent such fires. This amendment revises the existing AD to allow dispatch relief in the event a lavatory door ashtray is missing.
AD 96-13-13 · published Jun 27, 1996, effective Aug 1, 1996
Fokker Model F28 Mark 0100 and 0070 Series Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Fokker Model F28 Mark 0100 series airplanes, that currently requires certain maximum brake wear limits to be incorporated into the FAA-approved maintenance inspection program. That AD also currently requires that the Airplane Flight Manual (AFM) be revised to include certain procedures concerning operations in the event of a rejected takeoff (RTO). This amendment requires the incorporation of new maximum brake wear limits for additional brake units into the FAA-approved maintenance program. This action also deletes the previous requirement for the AFM revision. This amendment is prompted by the determination of the maximum allowable brake wear limits for additional brake unit part numbers. The actions specified by the AD are intended to prevent the loss of brake effectiveness during a high energy RTO.
AD 96-11-05 · published Jun 28, 1996, effective Jun 28, 1996
Airbus Industrie, Airbus Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Industrie Model A300, A300-600, and A310 series airplanes, that requires inspections to detect cracks in the lower spar axis of the pylons between ribs 6 and 7, and repair, if necessary. This amendment is prompted by reports that fatigue cracking has been found on the lower spar of the pylon. The actions specified by this AD are intended to prevent such fatigue cracking, which could result in reduced structural integrity of the lower spar of the pylon.
AD 96-11-07 · published Jun 28, 1996, effective Jun 28, 1996
Learjet Inc. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Learjet Model 31 and 35A airplanes, that requires replacement of two segments of 16 American Wire Gauge (AWG) wire with 8 AWG wire at the connector that is connected to the auxiliary cabin heater relay box. This amendment is prompted by a report that two segments of the 16 AWG wire in the auxiliary cabin heater that were spliced during production do not provide adequate current-carrying capacity. The actions specified by this AD are intended to prevent electrical arcing and a subsequent fire hazard that could result from wiring with inadequate current-carrying capacity.
AD 96-13-10 · published Jun 28, 1996, effective Aug 2, 1996
Jetstream Model 4101 Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Jetstream Model 4101 airplanes, that requires modification of the existing diaphragms on the surround structure of the Type II emergency exit. This amendment is prompted by a report indicating that, during fatigue tests on a Model 4101 test article, fatigue-related cracking was found in the surround structure of a Type II emergency exit. The actions specified by this AD are intended to prevent such cracking in the surround structure, which could result in reduced structural integrity of the fuselage pressure vessel.
AD 91-21-01 R1 · published Jun 7, 1996, effective Jun 27, 1996
Textron Lycoming Model TIO-540-S1AD Reciprocating Engines
This amendment revises an existing airworthiness directive (AD), applicable to Textron Lycoming Model TIO-540-S1AD reciprocating engines, that currently requires the upgrade of the engine exhaust system to a new design configuration; and also establishes inspection intervals for engines incorporating the new design configuration, for engines incorporating the design configuration required by a previous AD, and for engines not yet incorporating either design configuration. This amendment clarifies that an exhaust system disassembly is not necessary when inspecting the exhaust system after the installation of the new design One-piece Exhaust Riser Kit, and Manifold Retaining Kit. This amendment is prompted by reports from operators requesting clarification of two paragraphs in the compliance section. The actions specified by this AD are intended to prevent cracking or distortion of engine exhaust system flanges, V-band coupling, and pipes, which could result in engine compartment fire and smoke entering the cabin with possible loss to the aircraft.
AD 96-09-10 · published Jun 10, 1996, effective Jul 15, 1996
Lycoming Engines Engines
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Textron Lycoming reciprocating engines, that currently requires replacement of sintered iron impellers in oil pumps. This amendment continues to require replacement of sintered iron impellers, but also requires replacement of aluminum impellers. This amendment is prompted by reports of additional oil pump failures caused by aluminum impellers, which do not have the reliability of the hardened steel impellers. The actions specified by this AD are intended to prevent an oil pump failure due to impeller failure, which could result in an engine failure.
AD 96-12-04 · published Jun 12, 1996, effective Aug 12, 1996
Superior Air Parts, Inc. Pistons Installed on Teledyne Continental Motors O-470 Series Reciprocating Engines
This amendment adopts a new airworthiness directive (AD), applicable to certain Superior Air Parts, Inc. Parts Manufacturer Approval (PMA) pistons installed on Teledyne Continental Motors O-470 series reciprocating engines, that requires removal from service of certain pistons. This amendment is prompted by piston failures. The actions specified by this AD are intended to prevent piston failure, which can result in engine power loss, engine failure and loss of the aircraft.
AD 96-12-05 · published Jun 13, 1996, effective Aug 12, 1996
Honeywell International Inc. Engines
This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal, Inc. (formerly Textron Lycoming) LTS101 series turboshaft and LTP101 series turboprop engines, that requires identifying, removing, and replacing certain defective power turbine rotors. This amendment is prompted by reports of workmanship deficiencies on certain power turbine rotors that can reduce the published life limit of the disk. The actions specified by this AD are intended to prevent power turbine rotor failure, which could result in loss of engine power.
AD 96-12-06 · published Jun 13, 1996, effective Jul 18, 1996
Continental Motors Engines
This amendment supersedes two existing airworthiness directives (AD's), applicable to Teledyne Continental Motors and Rolls-Royce, plc O-200 series reciprocating engines, that currently require resetting engine timing to 24o Before Top Center (BTC). This amendment returns to the 28o BTC engine timing for those engines equipped with improved cylinders that have strengthened heads. In addition, this amendment drops the TCM O-200C model which never went into production. This amendment is prompted by the availability of improved cylinders. The actions specified by this AD are intended to prevent possible cylinder cracking with subsequent loss of engine power.
AD 96-12-22 · published Jun 17, 1996, effective Jul 31, 1996
Cessna Aircraft Company Engine Oil Filter Adapter Assemblies Installed on Aircraft
This amendment adopts a new airworthiness directive (AD) that applies to Cessna Aircraft Company (Cessna) engine oil filter adapter assemblies installed on aircraft. This action requires inspecting the oil filter and adapter assembly (or torque putty, if installed) for oil leakage and proper installation of the adapter retaining nut and fretting of associated threads (security), and replacing any oil filter adapter assembly with security problems; applying torque putty between the engine filter adapter assembly, nut, and oil pump housing (unless already equipped with torque putty); and repetitively inspecting the torque putty for misalignment, evidence of oil leakage, or torque putty cracks, and reinspecting the oil filter and adapter assembly threads if misalignment, evidence of oil leakage, or torque putty cracks are found. Reports of loose or separated engine oil filter adapters on several airplanes prompted this action. The actions specified by this AD are intended to prevent loss of engine oil caused by loose or separated oil filter adapters, which, if not detected and corrected, could result in engine stoppage while in flight and loss of control of the airplane.
AD 96-12-27 · published Jun 19, 1996, effective Aug 19, 1996
AlliedSignal Inc. (formerly Textron Lycoming) LTS 101 Series Turboshaft and LTP 101 Series Turboprop Engines
This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal Inc. (formerly Textron Lycoming) LTS 101 series turboshaft and LTP 101 series turboprop engines, that requires removal from service of suspect disks for a one-time inspection of the disk tenon area of the gas generator turbine disk. This amendment is prompted by a report of a gas generator turbine disk tenon failure. The actions specified by this AD are intended to prevent total loss of engine power, inflight engine shutdown, and possible damage to the aircraft.
AD 69-09-03 R3 · published Jun 13, 1996, effective Jun 13, 1996
Sensenich Propeller Manufacturing Company, Inc. Propellers
AD 96-12-09 · published Jun 24, 1996, effective Jul 29, 1996
PTC Seating Products Division, B/E Aerospace, Model 950 Series Passenger Seats Equipped With Footrest Assembly
This amendment adopts a new airworthiness directive (AD), applicable to PTC Seating Products Division, B/E Aerospace (PTC), formally known as PTC Aerospace, Model 950 series passenger seats with footrest assembly. This amendment will require the removal of the footrest assembly arms and the installation of a conversion kit on each PTC Model 950 series passenger seat equipped with footrest assembly. This amendment is prompted by two incidents of finger injuries that occurred during attempts to either extend or retract the footrest system on PTC Model 950 series passenger seats equipped with footrest assembly. The actions specified by this AD are intended to prevent injury to hands during the operation of a PTC Model 950 series passenger seat equipped with footrest assembly.
