21 Airworthiness Directives: 18 airplane, 1 engine, 1 propeller, 1 appliance.
AD 94-01-10 · published Mar 3, 1994, effective Mar 3, 1994
The Boeing Company Airplanes
AD 94-01-15 · published Mar 3, 1994, effective Mar 3, 1994
The Boeing Company Airplanes
AD 94-01-12 · published Mar 4, 1994, effective Mar 4, 1994
Airbus SAS Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to all Airbus Industrie Model A310-200 and A310-300 series airplanes series airplanes, that currently requires inspections and tests to detect broken or missing vespel bushes in the flap universal joint assemblies, and replacement of universal joint bushes, if necessary. This amendment adds a terminating modification for the currently required inspections and tests. This amendment is prompted by the development of a modification that will improve the integrity of the flap universal joints. The actions specified by this AD are intended to prevent rupture of the flap universal joints, subsequent partial loss of lift in one wing, and reduced controllability of the airplane.
AD 94-05-01 · published Mar 4, 1994, effective Apr 4, 1994
Lockheed Martin Corporation Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Lockheed Model L-1011 series airplanes, that currently requires certain structural modifications and inspections. This amendment revises certain inspections required by the existing AD, and requires additional inspections and structural modifications. This amendment is prompted by reports of recent incidents involving fatigue cracking and corrosion in transport category airplanes that are approaching or have exceeded their economic design goal. The actions specified by this AD are intended to prevent degradation of the structural capabilities of the affected airplanes. This action also reflects the FAA's determination that long term continued operational safety should be assured by actual modification of the airframe rather than repetitive inspections. The incorporation by reference of Lockheed Service Bulletin 093-51-035, Revision 1, dated December 16, 1991, as revised by L-1011Service Bulletin Change Notification 093-51-035, R1-CN1, dated October 27, 1992, as listed in the regulations, is approved by the Director of the Federal Register as of April 4, 1994. The incorporation by reference of Lockheed Service Bulletin 093-51-035, dated June 28, 1990, as listed in the regulations, was approved previously by the Director of the Federal Register as of March 22, 1991 (56 FR 6556, February 19, 1991).
AD 94-05-07 · published Mar 4, 1994, effective Apr 4, 1994
The Boeing Company Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that currently requires repetitive visual inspections of wire bundles to detect damage due to chafing, and repair of damaged wires. This amendment revises the inspection and repair procedures, and provides a terminating action, which, if accomplished, will eliminate the need for the currently required inspections. This amendment is prompted by data that substantiates the need for new inspection and repair procedures. The actions specified by this AD are intended to prevent smoke and fire in the cockpit emanating from wire bundles and loss of essential cockpit instruments necessary for continued safe flight and landing of the airplane.
AD 94-04-10 · published Mar 7, 1994, effective Apr 6, 1994
Various Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F28 Mark 0100 series airplanes, that requires replacement of the bottom joint fittings and modification of these new bottom joint fittings, the main landing gear (MLG) rear spar fittings, and the rear spar webs by cold-expanding the bolt holes. This amendment is prompted by full-scale fatigue testing of a Fokker Model F28 Mark 0100 series airplane, which revealed cracks in the MLG rear spar fitting. The actions specified by this AD are intended to prevent loss of the structural integrity of the MLG attachments.
AD 94-05-02 · published Mar 8, 1994, effective Apr 7, 1994
Various Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F-28 series airplanes, that requires the implementation of a corrosion prevention and control program either by accomplishing specific tasks or by revising the maintenance inspection program to include such a program. This amendment is prompted by reports of incidents involving corrosion and fatigue cracking in transport category airplanes that are approaching or have exceeded their economic design goal; these incidents have jeopardized the airworthiness of the affected airplanes. The actions specified by this AD are intended to prevent degradation of the structural capabilities of the airplane due to the problems associated with corrosion.
AD 94-05-09 · published Mar 8, 1994, effective Apr 7, 1994
Textron Aviation Inc. Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Beech Model 400A airplanes, that requires an inspection to detect fatigue-related cracking in certain cabin seat frames; measurement to determine gap size between the bearing shafts and certain seat frames; and repair, if necessary. This amendment is prompted by in-service inspection reports of fatigue-related cracking radiating outward from the bushings welded into the cabin seat frames. The actions specified by this AD are intended to prevent separation of the cabin seat frames from their bases during an emergency landing.
AD 94-03-01 · published Mar 14, 1994, effective Mar 14, 1994
McDonnell Douglas Corporation Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to McDonnell Douglas Model DC-9 series airplanes and C-9 (military) 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 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 94-03-04 · published Mar 14, 1994, effective Mar 14, 1994
Airbus Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A320 series airplanes, that requires repetitive inspections to detect breakage of the rivet heads at a certain skin-to-frame junction of the fuselage and replacement of discrepant rivets. This amendment also requires eventual replacement of the currently installed rivets with high-strength bolts; when accomplished, this replacement terminates the need for the repetitive inspections. This amendment is prompted by test reports of fatigue-related damage found on the rivet heads at a certain skin-to-frame junction of the fuselage. The actions specified by this AD are intended to prevent loss of fuselage skin and rapid decompression of the airplane.
AD 94-04-05 · published Mar 17, 1994, effective Mar 17, 1994
Airbus Industrie, Airbus Airplanes
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Industrie Models A300, A310, and A300-600 series airplanes. This action requires repetitive deployment tests of the ram air turbine (RAT) and checks of the adjustment of the locking rod. This amendment is prompted by reports of failure of the RAT to rotate when necessary, due to maladjustment of the locking rod. The actions specified in this AD are intended to ensure the availability of the RAT in case of need.
AD 89-02-12 R1 · published Mar 21, 1994, effective Mar 21, 1994
Gulfstream Aerospace Corporation Airplanes
AD 94-03-08 · published Mar 21, 1994, effective Mar 21, 1994
The Boeing Company Airplanes
This amendment supersedes an existing airworthiness directive (AD), applicable to McDonnell Douglas Model DC-10 series airplanes and Model KC-10A (military) airplanes, that currently requires certain structural modifications and inspections. This amendment requires additional structural modifications and inspections. This amendment is prompted by an evaluation by the Model DC-10 Task Group, which identified additional modifications for mandatory action. The actions specified by this AD are intended to prevent degradation in the structural capabilities of the affected airplanes. This action also reflects the FAA's decision that long-term continued operational safety should be assured by actual modification of the airframe, where feasible, rather than only repetitive inspections for known service problems.
AD 94-05-04 · published Mar 22, 1994, effective Apr 21, 1994
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 727 series airplanes, that requires incorporation of certain structural modifications. This amendment is prompted by an evaluation by the Model 727 Structures Working Group, comprised of aircraft operators, manufacturers, and the FAA. This Working Group evaluated Boeing service bulletins that must be included as part of the "Aging Airplane Structural Modification Program." The actions specified by this AD are intended to prevent degradation in the structural capabilities of the affected airplanes. The actions also reflect the FAA's decision that long term continued operational safety should be assured by actual modification of the airframe rather than repetitive inspections.
AD 94-06-08 · published Mar 22, 1994, effective Apr 21, 1994
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to Boeing Model 707 series airplanes, that requires the incorporation of a certain structural modification of the wing front spar lower chord. This amendment is prompted by an evaluation and recommendation by the Airworthiness Assurance Task Force to mandate the actions described in certain Boeing service bulletins as part of the "Aging Airplane Structural Modification Program." The actions specified by this AD are intended to prevent reduced structural integrity of the wing. The actions also reflect the FAA's decision that long term continued operational safety should be assured by actual modification of the airframe rather than repetitive inspections.
AD 94-06-11 · published Mar 22, 1994, effective Apr 21, 1994
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737-300, -400, and -500 series airplanes, that requires modification of the leading edge slat access panel and internal structure at Front Spar Station (FSS) 250.663. This amendment is prompted by reports that fuel leaking from the fuel line at FSS 250.663 flowed through a drain hole in a slat access panel and leaked into the turbine exhaust area. The actions specified by this AD are intended to prevent drainage from such a fuel leak into the turbine exhaust area, which could cause an external fire under the wing.
AD 94-04-08 · published Mar 24, 1994, effective Mar 24, 1994
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10 series airplanes and Model KC-10A (military) airplanes, that requires inspections to detect cracking in the No. 2 engine pylon lower spar forward mount and thrust link fitting attach bolts, replacement of cracked bolts, and the eventual replacement of all bolts made of H-11 material with bolts made of Inconel. This amendment is prompted by reports of failures of these attach bolts due to stress corrosion. The actions specified by this AD are intended to prevent failure of the attach bolts, which could reduce the fail-safe capability of the attachment assembly.
AD 94-07-08 · published Mar 29, 1994, effective Mar 22, 1994
The Boeing Company Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 727 series airplanes, that requires structural inspections of older airplanes. This amendment is prompted by reports of incidents involving fatigue cracking and corrosion in transport category airplanes that are approaching or have exceeded their economic design service goal. The actions specified by this AD are intended to prevent degradation of the structural capabilities of the affected airplanes. This proposal relates to the recommendations of the Airworthiness Assurance Task Force assigned to review Model 727 series airplanes, which indicate that, to assure long term continued operational safety, various structural inspections should be accomplished.
AD 94-06-03 · published Mar 30, 1994, effective Apr 29, 1994
General Electric Company Engines
This amendment adopts a new airworthiness directive (AD), applicable to General Electric Company (GE) CF6-80C2 series turbofan engines, that requires an inspection for cracks in the stage 1 high pressure turbine (HPT) disk rim bolt holes, and replacement, if necessary, with serviceable parts. This amendment is prompted by a report of an uncontained stage 1 HPT disk failure which resulted in an aborted takeoff. The actions specified by this AD are intended to prevent an uncontained stage 1 HPT disk failure, which could result in an inflight engine shutdown, rejected takeoff, or damage to the aircraft.
AD 94-06-05 · published Mar 29, 1994, effective Mar 29, 1994
Hamilton Sundstrand Propellers
AD 94-06-04 · published Mar 22, 1994, effective May 23, 1994
Airbus, BAE Systems (Operations) Limited, The Boeing Company, Dassault Aviation, Textron Aviation Inc., Piper Aircraft Inc. Appliances
This amendment adopts a new airworthiness directive (AD), applicable to EROS series MF10-( )-( ) full face quick donning mask regulators, that requires replacement of the face piece and the mask shell securing screw. This amendment is prompted by reports of the plastic pin breaking which secures the mask shell with the face piece. The actions specified by this AD are intended to prevent the failure of the pin securing the mask shell to the face piece, which could result in a mask leaking oxygen and the crew losing consciousness.
