32 Airworthiness Directives: 22 airplane, 4 engine, 3 propeller, 3 glider.
AD 95-16-05 · published Aug 2, 1995, effective Aug 17, 1995
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model MD-11 series airplanes. This action requires an inspection to identify defective lower drag links on the nose landing gear (NLG), and replacement of defective drag links with new parts. This amendment is prompted by a report indicating that a potential failure condition of the lower drag link on the NLG could occur due to improper de-embrittlement treatment of the drag link during manufacturing. The actions specified in this AD are intended to prevent collapse of the NLG due to failure of the lower drag link as a result of improper de-embrittlement treatment of the drag link.
AD 95-16-06 · published Aug 2, 1995, effective Sep 26, 1995
Jetstream Aircraft Limited HP137 Mk1 and Jetstream Series 200 Airplanes
This amendment supersedes Airworthiness Directive (AD) 83-05- 01, which currently requires the following on Jetstream Aircraft Limited (JAL) HP137 Mk1 and Jetstream series 200 airplanes: repetitively inspecting the wing lower skin panels at the main gear bay cutouts for loose or damaged rivets and cracks, replacing loose or damaged rivets, and repairing any cracked wing lower skin panel. The Federal Aviation Administration's policy on commuter-class aircraft is to eliminate or, in certain instances, reduce the number of certain repetitive short-interval inspections when improved parts or modifications are available. The proposed action would require reinforcing the wing lower skin at both the landing gear cutouts at Wing Station (WS) 115 and the undercarriage bay cutouts at WS 60 and WS 90, as terminating action for the repetitive inspections that are currently required by AD 83-05-01. The actions specified in the proposed AD are intended to prevent wing damage caused by cracks or loose or damaged rivets in the wing lower skin panels, which, if not detected and corrected, could result in structural damage to the point of failure.
AD 95-16-01 · published Aug 3, 1995, effective Aug 18, 1995
The Boeing Company Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to all McDonnell Douglas Model MD-11 series airplanes, that currently requires a revision to the Airplane Flight Manual (AFM) that prohibits autoland operation below 100 feet above ground level, and installation of flight control computer software. It also provides for an optional terminating action for the AFM revision. This amendment provides for a new optional terminating action for the AFM revision. This amendment is prompted by reports of erroneous central aural warning system altitude callouts and erroneous radio altimeter indications during autoland approaches due to radio frequency leakage (RF) on airplanes on which the optional terminating action had been accomplished. The actions specified in this AD are intended to prevent radio altimeter antenna/coaxial cable RF leakage, which could result in early and/or abnormal flare (pitch) control during autoland operation and potential degradation of the landing capability of the airplane.
AD 95-16-02 · published Aug 3, 1995, effective Sep 5, 1995
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747 SP, SR, -100, -200, and -300 series airplanes, that requires repetitive operational tests of the reversible gearbox pneumatic drive unit (PDU) or the reversing air motor PDU to ensure that the unit can restrain the thrust reverser sleeve, and correction of any discrepancy found. This amendment is prompted by the results of an investigation, which revealed that, in the event of thrust reverser deployment during high-speed climb or during cruise, these airplanes could experience control problems. The actions specified by this AD are intended to ensure the integrity of the fail safe features of the thrust reverser system by preventing possible failure modes in the thrust reverser control system that can result in inadvertent deployment of a thrust reverser during flight.
AD 95-16-03 · published Aug 3, 1995, effective Sep 5, 1995
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Model DC-9 series airplanes and C-9 (military) airplanes, that requires inspection of the driver links of the thrust reverser door to determine whether the driver links are chamfered, an inspection to detect damage of the overcenter links, and follow-on corrective actions, if necessary; and replacement or rework of the driver links. This amendment is prompted by reports of a thrust reverser door that failed to operate properly due to improperly manufactured (missing chamfers on the) driver links. The actions specified by this AD are intended to prevent damage to the overcenter links due to missing chamfers on the driver links, which may result in uncommanded opening of the thrust reverser door, and subsequently, adversely affecting controllability of the airplane.
AD 95-14-03 · published Aug 7, 1995, effective Aug 7, 1995
Airbus SAS Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace Model BAC 1-11-200 and -400 series airplanes, that requires repetitive radiographic inspections to detect corrosion of the center torque shaft of the wing spoiler, and replacement, if necessary. This amendment is prompted by a report of the wing spoiler failing to retract fully after deployment, which caused the wing to drop significantly. Subsequent investigation revealed that the torque shaft assembly of the wing spoiler had failed due to severe corrosion. The actions specified by this AD are intended to prevent such failures, which can result in an adverse effect on controllability of the airplane.
AD 95-14-05 · published Aug 7, 1995, effective Aug 7, 1995
Mitsubishi Heavy Industries, Ltd. Airplanes
AD 95-15-52 · published Aug 10, 1995, effective Aug 25, 1995
Boeing Model 747-100 and -200 Series Airplanes
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) T95-15-52 that was sent previously to all known U.S. owners and operators of certain Boeing Model 747-100 and -200 series airplanes by individual telegrams. This AD requires a revision of the Airplane Flight Manual (AFM) and Airplane Weight and Balance Supplement to restrict cargo loading to a certain level. This AD also provides for the removal of the restrictions following accomplishment of a modification of the longitudinal floor beams. This amendment is prompted by a determination that inadequate strength in the floor beams exists on certain airplanes that have been modified for cargo configurations. The actions specified by this AD are intended to prevent failure of the longitudinal floor beams, which may cause the keel beam to fail and result in rupture of the fuselage.
AD 95-17-03 · published Aug 10, 1995, effective Aug 25, 1995
Lockheed Martin Corporation Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to all Lockheed Model L-1011 series airplanes, that currently requires a visual inspection to detect cracks of the forward or aft side of the aft pressure bulkhead, and repair, if necessary. This amendment requires various inspections to detect cracks or other discrepancies of the aft pressure bulkhead, and repair, if necessary. This amendment is prompted by a recent report of in-flight loss of cabin pressure on a Model L-1011-385 series airplane due to a rupture of the aft pressure bulkhead as a result of fatigue-related cracking. The actions specified in this AD are intended to prevent such fatigue cracking, which could result in rupture of the aft pressure bulkhead and subsequent depressurization of the cabin.
AD 95-17-01 · published Aug 14, 1995, effective Sep 13, 1995
The Boeing Company Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 707 and 720 series airplanes, that currently requires repetitive visual and dye penetrant inspections to detect cracks in areas of the upper forward skin panels of the wing center section, and repair, if necessary. It also provides an optional terminating modification for the repetitive inspections. This amendment requires repetitive visual and eddy current inspections to detect cracks in areas of the upper forward skin panels of the wing center section, and repair, if necessary. This amendment is prompted by reports indicating that the inspections required by the existing AD are not effective in detecting fatigue cracks in a timely manner. The actions specified by this AD are intended to prevent fatigue cracking and subsequent failure of the upper forward skin panels of the wing center section.
AD 95-17-04 · published Aug 14, 1995, effective Sep 13, 1995
Jetstream Model ATP Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to all Jetstream Model ATP airplanes, that currently requires revising the Airplane Flight Manual (AFM) to prohibit flight in freezing precipitation conditions. This amendment adds a requirement to install modifications of the engine air intake system. This amendment is prompted by the development of modifications of the engine air intake system intended to permit operation of these airplanes in freezing precipitation conditions. The actions specified by this AD are intended to prevent engine power rollback in flight during freezing precipitation conditions.
AD 95-14-08 · published Aug 18, 1995, effective Aug 18, 1995
Vickers-Armstrongs (Aircraft Limited) Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace Model Viscount 744, 745D, and 810 airplanes, that requires repetitive inspections to detect discrepancies of certain fittings and the actuator beam structure of the nose landing gear, and replacement of discrepant parts. This amendment is prompted by reports of fatigue cracking of the undercarriage bracing of the nose wheel. The actions specified by this AD are intended to prevent such fatigue cracking, which could result in the failure of the structure and fittings, and subsequent collapse of the nose landing gear.
AD 95-16-09 · published Aug 18, 1995, effective Aug 18, 1995
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Jetstream Model BAe ATP airplanes. This action requires modification of the electrical connections at the switches of the scavenge oil filter and pressure oil filter. This amendment is prompted by reports indicating that the electrical connections were miswired at the switches of the scavenge oil filter and pressure oil filter. The actions specified in this AD are intended to prevent the circulation of unfiltered oil through the engine without warning to the flightcrew, due to miswiring of electrical connections. Unfiltered oil containing contaminants could lead to a precautionary shutdown of the engine.
AD 95-17-07 · published Aug 21, 1995, effective Aug 28, 1995
Fairchild Aircraft SA226 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to certain Fairchild Aircraft SA226 series airplanes. This action requires removing the main landing gear (MLG) stop bolts from the bracket assembly on the upper scissors for those airplanes with a MLG door stop installation, and servicing the MLG oleos for all affected airplanes. Incidents where two of the affected airplanes made an emergency gear-up landing prompted this action. The actions specified by this AD are intended to prevent the MLG doors from jamming, which could prevent the gear from extending and could result in an emergency gear-up landing.
AD 95-17-05 · published Aug 22, 1995, effective Sep 21, 1995
Airbus Model A310 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all Airbus Model A310 series airplanes, that requires inspections to detect loose self-locking nuts and damaged cotter pins on the actuating cylinder to drag strut attachment of the left- and right-hand main landing gear (MLG), and correction of discrepancies. This amendment also provides an optional terminating action for the repetitive inspections. This amendment is prompted by reports of loose nuts and sheared cotter pins found on in-service airplanes. The actions specified by this AD are intended to prevent an undampened free fall of the left- and right-hand MLG, which subsequently could lead to the inability to retract the MLG and damage to other airplane systems.
AD 95-15-02 · published Aug 23, 1995, effective Aug 23, 1995
Vickers-Armstrongs (Aircraft Limited) Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace Model Viscount 744, 745D, and 810 airplanes, that requires an inspection of fittings of the engine mount structure to determine whether fasteners have been installed in inspection holes and to determine whether those holes are oversized. It also requires various follow-on actions, depending upon the results of the inspection. This amendment is prompted by reports indicating that fasteners were installed in the inspection hole of the engine "W" frame socket fittings and the inspection hole was oversized due to fatigue cracking. The actions specified by this AD are intended to prevent such fatigue cracking, which could lead to failure of the fasteners and consequent separation of the engine from the airframe.
AD 95-15-05 · published Aug 23, 1995, effective Aug 23, 1995
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain British Aerospace Model BAe 146-100A, -200A, and -300A airplanes, that requires modification of the elevator control system of the flight controls. This amendment is prompted by reports of low frequency constant amplitude oscillations of the elevator control system and non-centering of the pitch control upon autopilot disconnect. The actions specified by this AD are intended to prevent uncommanded descent upon autopilot disconnect and reduced controllability of the airplane due to low frequency constant amplitude oscillations.
AD 95-15-08 · published Aug 23, 1995, effective Aug 23, 1995
Vickers-Armstrongs (Aircraft Limited) Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace Model Viscount 744, 754D, and 810 airplanes, that requires an inspection to detect corrosion of the tailplane assemblies, and correction of discrepancies. This amendment is prompted by a report of corrosion on the main spar top and bottom forward boom of the tailplane assemblies and reports of cracking in the upper root joint attachment fitting. The actions specified by this AD are intended to detect and prevent such cracking or corrosion of the main spar forward booms or the upper root joint attachment fitting, which consequently could lead to the failure of the tailplane assemblies; this condition could result in reduced controllability of the airplane.
AD 95-15-09 · published Aug 23, 1995, effective Aug 23, 1995
Airbus SAS Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain British Aerospace Model BAC 1-11-200 and -400 series airplanes, that requires various inspections to detect discrepancies of fuselage frames at certain stations, and correction of discrepancies; and rework to limit the maximum differential operating pressure of the fuselage. This amendment will also require eventual modification of fuselage frames at certain stations, which will terminate the repetitive inspection requirements. This amendment is prompted by reports of fatigue cracking in certain fuselage frames in the vicinity of the passenger door at floor level due to fatigue-related stress. The actions specified by this AD are intended to detect and prevent such fatigue-related cracking, which could result in reduced structural integrity of the fuselage pressure vessel and possible decompression of the pressurized cabin.
AD 95-15-10 · published Aug 23, 1995, effective Aug 23, 1995
BAE Systems (Operations) Limited Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Jetstream Model 4101 airplanes, that requires an inspection to determine if a travel stop (screw) is installed at the flight control assembly, and various follow-on actions. This amendment is prompted by a report of failure of the travel stop, which allowed the elevator and aileron disconnect handles to rotate within the housing due to migration of the travel stop from its position. The actions specified by this AD are intended to prevent such migration, which could result in the elevator and aileron disconnect system resetting without the use of the reset button; this condition could lead to jamming of the disconnect handles.
AD 95-17-10 · published Aug 23, 1995, effective Oct 3, 1995
Jetstream Aircraft Limited Jetstream Models 3101 and 3201 Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to certain Jetstream Aircraft Limited (JAL) Jetstream Models 3101 and 3201 airplanes. This action requires modifying the central annunciator panel test button circuit. A report of diode failure in this circuit and subsequent inadvertent engine shutdown on one of the affected airplanes prompted this action. The actions specified by this AD are intended to prevent failure of a diode in the central annunciator panel test button circuit, which could result in inadvertent engine shutdown while in flight if the central annunciator panel test button is pressed.
AD 95-17-13 · published Aug 28, 1995, effective Sep 12, 1995
British Aerospace Model BAe 146 and Model Avro 146-RJ Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain British Aerospace Model BAe 146 and Model Avro 146-RJ airplanes. This action requires modification of the left- and right-hand elevators to improve water drainage. This amendment is prompted by reports that elevator oscillations and resultant airplane pitch oscillations have occurred due to the elevator balance changes as a result of accumulation of water in the elevators. The actions specified in this AD are intended to minimize accumulation of water in the elevators, which could lead to elevator and airplane pitch oscillations with a subsequent reduction of controllability of the airplane and damage to the tail surface structure.
AD 95-16-04 · published Aug 3, 1995, effective Oct 2, 1995
Honeywell International Inc. Engines
This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal Inc. LTS101 series turboshaft and LTP101 series turboprop engines, that requires replacement of cast material axial compressor rotors with wrought material axial compressor rotors that have improved fatigue characteristics and material properties. This amendment is prompted by 36 reports of axial compressor blade failures on cast rotors. The actions specified by this AD are intended to prevent engine power loss and inflight engine shutdown.
AD 95-16-08 · published Aug 4, 1995
AlliedSignal, Inc. TPE331 Series Turboprop and TSE331 Series Turboshaft Engines
This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal, Inc. (formerly Allied-Signal, Inc., Garrett Engine Division, Garrett Turbine Engine Company, and AiResearch Manufacturing Co. of Arizona) TPE331 series turboprop and TSE331 series turboshaft engines, that requires a record check of engine records to determine if any repair, assembly, modification, or installation work was performed by Fliteline Maintenance, formerly located in Wharton, Texas, or Mr. Eugene E. Shanks, or Mr. Carl Ramirez (collectively referred to as ``Fliteline''). In addition, for engines determined to have repair, assembly, modification, or installation work performed by Fliteline, this action requires verification of all life limited components, inspection of affected components, and verification of compliance with all applicable AD's. This amendment is prompted by the results of a Federal Aviation Administration (FAA) investigation involving engines repaired, assembled, modified, or installed by Fliteline. The actions specified by this AD are intended to prevent uncontained failure of turbine rotors, fire, or loss of aircraft control.
AD 95-16-07 · published Aug 10, 1995, effective Sep 11, 1995
Pratt & Whitney Division Engines
This amendment supersedes an existing airworthiness directive (AD), applicable to Pratt & Whitney JT8D series turbofan engines, that currently requires initial and repetitive inspections of 9th through 12th stage high pressure compressor (HPC) disks at the tierod holes. This amendment eliminates an optional on-wing ultrasonic inspection of the 10th stage high pressure compressor (HPC) disk. This amendment is prompted by a report of an uncontained failure of a 10th stage HPC disk that was previously inspected using the on-wing ultrasonic inspection method. The actions specified by this AD are intended to prevent uncontained fractures of 9th through 12th stage HPC disks and engine failure.
AD 95-15-51 · published Aug 24, 1995, effective Sep 8, 1995
Pratt and Whitney Model JT8D-9A Turbofan Engines
This document publishes in theFederal Register an amendment adopting Airworthiness Directive (AD) T95-15-51 that was sent previously to all known U.S. owners and operators of Pratt and Whitney (PW) Model JT8D-9A engines by individual telegrams. This AD requires inspection, and replacement, if necessary, of suspect 7th through 12th stage HPC disks. This amendment is prompted by a report of an uncontained engine failure during takeoff. The actions specified by this AD are intended to prevent an uncontained HPC disk failure and damage to the aircraft.
AD 95-18-06 PL · published 1995
Hamilton Standard Division, Hamilton Sundstrand Propellers
AD 95-18-06 R1 · published 1995
Hamilton Standard Division, Hamilton Sundstrand Propellers
AD T95-18-51 · published 1995
Hamilton Standard Division, Hamilton Sundstrand Propellers
AD 95-13-09 · published Aug 5, 1995, effective Aug 5, 1995
Burkhart Grob Luft-Und, GROB-WERKE GMBH & CO KG Gliders
This amendment adopts a new airworthiness directive (AD) that applies to certain Grob Luft Und Raumfahrt (Grob) Models G102 Astir CS, Club Astir IIb, Twin Astir, Speed Astir, Standard Astir II, and Speed Astir IIb sailplanes. This action requires inspecting all elevator and rudder hinges for damage (delamination, cracks, corrosion, or buckling), and repairing any damaged parts. Several occurrences of inner elevator hinges separating during flight operation prompted this AD action. The actions specified by this AD are intended to prevent these hinges from separating, which could result in sailplane flutter and eventual loss of control of the sailplane.
AD 95-17-08 · published Aug 28, 1995, effective Oct 10, 1995
Stemme GmbH & Co. KG Gliders
This amendment adopts a new airworthiness directive (AD) that applies to Stemme GmbH (Stemme) S10 gliders. This action requires modifying the rudder control cable system. Rupture of a turnbuckle eye bolt in the rudder control cable system on one of the affected gliders prompted this action. The actions specified by this AD are intended to prevent rudder control cable system failure caused by rupture of the turnbuckle eye bolt, which, if not detected and corrected, could result in loss of rudder control and eventual loss of control of the glider.
AD 95-18-01 · published Aug 28, 1995, effective Oct 16, 1995
Scheibe-Flugzeugbau GmbH Gliders
This amendment adopts a new airworthiness directive (AD) that applies to Scheibe Flugzeugbau GmbH SF34 and SF34B gliders. This action requires adding armature (supportive covering) to both wings, modifying the root rib of the left wing and incorporating changes and operating limitations to the flight manual. Failure of the left wing root rib on one of the affected gliders while in flight prompted this action. The actions specified by this AD are intended to prevent fatigue failure of the wing, which could result in loss of control of the glider.
