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90-17-10: 90-17-10 BRITISH AEROSPACE, PLC: Amendment 39-6698. Docket No. 90-NM-73-AD. Applicability: All Model BAC 1-11 200 and 400 series airplanes, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To detect cracks in the right and left main landing gear (MLG) pintle forward reaction rod lug and the rear bearing spigot, and to prevent a collapse of the MLG, accomplish the following: A. Prior to the accumulation of 30,000 landings or within 1,400 landings after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 1,400 landings, perform an ultrasonic inspection of the forward reaction rod lug on all pintles Pre-Modification PM3247, in accordance with British Aerospace Alert Service Bulletin 32-A-PM5492, Issue 2, dated October 18, 1989 (Reference Appendix 1, and Figures 1 and 2). If cracks are suspected as a result of this inspection, perform a dye penetrant inspection with thefront reaction rod disconnected and the spherical bearing housing and bushing removed from the pintle lug in accordance with the service bulletin. B. Prior to the accumulation of 30,000 landings or within 1,400 landings after the effective date of this AD, whichever occurs later, unless accomplished within the last 2,800 landings, and thereafter at intervals not to exceed 4,200 landings, perform a dye penetrant inspection of the forward reaction rod lug on all pintles Pre-Modification PM3247, with the front reaction rod disconnected and the spherical bearinghousing and bushing removed from the pintle lug, in accordance with British Aerospace Alert Service Bulletin 32-A-PM5492. Issue 2, dated October 18, 1989. C. Perform the initial and repetitive ultrasonic inspections of the right and left MLG pintle rear bearing spigots, in accordance with British Aerospace Alert Service Bulletin 32-A-PM5492, Issue 2, dated October 18, 1989, at the following intervals: 1. Prior tothe accumulation of 25,000 landings, or within 1,000 landings after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 1,000 landings, perform an inspection of pintles having part numbers identified in paragraph 2.3 of the service bulletin. 2. Prior to the accumulation of 30,000 landings, or within 1,400 landings after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 1,400 landings, perform an inspection of pintles having part numbers identified in paragraph 2.4 of the service bulletin. 3. Prior to the accumulation of 40,000 landings, or within 1,400 landings after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 1,400 landings, perform an inspection of pintles having part number identified in paragraph 2.5 of the service bulletin. D. If cracked pintles are found as a result of the inspections required by paragraphs A., B., or C. of this AD, replace the pintles prior to further flight, in accordance with British Aerospace Alert Service Bulletin 32-A-PM5492, Issue 2, dated October 18, 1989. E. All right and left MLG pintles must be replaced prior to reaching the life limits (scrap life) identified in Appendix 1 of British Aerospace Alert Service Bulletin 32-A-PM5492, Issue 2, dated October 18, 1989. F. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. NOTE: The request should be submitted directly to the Manager, Standardization Branch, ANM-113, and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the Manager, Standardization Branch, ANM-113. G. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to abase in order to comply with the requirements of this AD. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue, S.W., Renton, Washington. This amendment (39-6698, AD 90-17-10) becomes effective on September 17, 1990.
2016-10-02: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777-200 and -300 series airplanes equipped with Rolls-Royce Trent 800 series engines. This AD was prompted by reports of heat damage to the strut aft fairing heat shield primary seal, as well as heat and wear damage to the heat shield insulation blankets. This AD requires repetitive inspections for cracks and heat damage to the strut aft fairing lower spar web structure (a flammable fluid zone barrier), for wear to the heat shield primary seal, and, as applicable, for heat and wear damage to heat shield insulation blankets; and related investigative and corrective actions if necessary. This AD also provides optional terminating action for the repetitive inspections. We are issuing this AD to detect and correct cracks and heat damage to the strut aft fairing lower spar web structure (a flammable fluid zone barrier), wear to the heat shield primary seal, and heat and wear damage to heat shield insulation blankets, which could lead to through-cracks in the aft fairing lower web structure and heating of the aft fairing lower web structure, and consequent uncontrolled fire in the aft fairing, fuel tank ignition or possible departure of the engine.
2001-06-04: This amendment adopts a new airworthiness directive (AD), applicable to McDonnell Douglas Model DC-8-33, -42, -55, and -61 series airplanes. This action requires detailed visual and eddy current inspections of the lower wing skin at the 3 outboard fasteners of stringer 64 end fitting to detect cracks; and corrective actions, if necessary. This action is necessary to prevent fatigue cracking of the lower wing skin, which could reduce structural integrity and loss of fail-safe capability of the airplane. This action is intended to address the identified unsafe condition. \n\n\tThe incorporation by reference of McDonnell Douglas Service Bulletin DC8-57-100, Revision 02, dated June 21, 2000, as listed in the regulations, is approved by the Director of the Federal Register as of April 9, 2001. The incorporation by reference of McDonnell Douglas Service Bulletin DC8-57-100, Revision 01, dated August 26, 1998, as listed in the regulations, was approved previously by the Directorof the Federal Register as of February 29, 2000 (65 FR 3794, January 25, 2000).\n\n\tComments for inclusion in the Rules Docket must be received on or before May 22, 2001.
2001-04-13: This amendment supersedes an existing airworthiness directive (AD) for Eurocopter France (ECF) Model SA.315B, SA.316B, SA.316C, SE.3160, and SA.319B helicopters. That AD requires initial and recurring inspections of the main rotor blade (blade) spar for cracks. This amendment requires initial and recurring dye penetrant or eddy current inspections for a cracked blade spar at 100- hour time-in-service (TIS) intervals or 600 cycles, whichever occurs first, rather than the 25-hour TIS intervals currently required. This amendment is prompted by an accident in which an ECF Model SA.315B helicopter blade failed due to fatigue cracking. The actions specified by this AD are intended to prevent separation of a blade and subsequent loss of control of the helicopter.
2016-09-12: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 and 787-9 airplanes. This AD requires repetitive inspections of the bilge barriers located in the forward and aft cargo compartments for disengaged decompression panels, and reinstalling any disengaged panels. This AD was prompted by several reports of disengaged decompression panels found on in-service airplanes. We are issuing this AD to detect and correct disengaged decompression panels from the bilge barriers located in the forward and aft cargo compartments. In the event of a cargo compartment fire, this condition would provide a path for smoke and Halon to enter the flight compartment and passenger cabin, which could result in the inability to contain and extinguish a fire.
2001-05-04: This amendment adopts a new airworthiness directive (AD) that applies to all PIAGGIO AERO INDUSTRIES S.p.A (PIAGGIO) Model P-180 airplanes. This AD requires you to inspect the flap actuators for incorrect maneuvering and evidence of grease and oxidation around the gear box (actuators with any of these conditions are referred to as problem actuators). If you find a problem actuator, this AD requires you to immediately replace the flap actuators with improved design actuators or repair the existing actuators to the improved design level. If you do not find a problem actuator, this AD requires you to repeat the inspection until the installed actuators are of improved design. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Italy. The actions specified by this AD are intended to detect and remove problem flap actuators from service. Continued operation with problem actuators could result in flap systemfailure, with consequent reduction in, or loss of, control of the airplane.
52-10-01: 52-10-01 CURTISS-WRIGHT: Applies to all Model C-46 aircraft. Compliance required as soon as possible, but not later than August 1, 1952. To provide circuit protection for the leads to both ammeters in the electric power system, the following shall be accomplished: In those aircraft having the ammeter shunts in the positive generator leads, install a circuit breaker or fuse in each ammeter lead as close as practicable to the shunt.
2001-04-14: This amendment supersedes an existing airworthiness directive (AD) for Societe Nationale Industrielle Aerospatiale (currently Eurocopter France) Model AS350 and AS355 series helicopters that currently requires inspecting the fuselage frame (frame) for a crack at the fuselage-to- tailboom interface and replacing or repairing, as necessary. That AD also requires a fastener torque check and retorquing, as necessary. This amendment retains the requirements of the existing AD but would increase the inspection interval from 1,200 hours time-in-service (TIS) to 2,500 hours or 6 years TIS, whichever occurs first. This amendment revises the time interval for inspecting the frame at the fuselage-to-tailboom interface to coincide with the inspection interval specified in the maintenance manual. The actions specified by this AD are intended to eliminate confusion and unnecessary costs and to prevent a cracked frame, tailboom failure, and subsequent loss of control of the helicopter.
2001-04-09: This amendment adopts a new airworthiness directive (AD) that is applicable to all Boeing Model 767 series airplanes. This action requires repetitive testing of the elevator control system to determine if an elevator power control actuator (PCA) is rigged incorrectly due to yielded or failed shear rivets in a bellcrank assembly for the elevator PCA, and follow-on actions, if necessary. This action is necessary to prevent continued operation with yielded or failed shear rivets in a bellcrank assembly for the elevator PCA, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
2022-25-51: The FAA is adopting a new airworthiness directive (AD) for all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these airplanes. This AD was prompted by reports of the autopilot/autothrottle system design resulting in inadvertent engagement of the autopilot when the flightcrew was attempting to engage the autothrottle late into the take-off phase or when attempting to re-engage the autothrottle during takeoff after uncommanded disconnect. This AD requires revising the Limitations section of the existing airplane flight manual (AFM) by revising the title of the existing autopilot AFM limitation, include a new warning prior to the existing autopilot engagement limitations, and include a new limitation prohibiting selecting or reselecting autothrottle during takeoff after thrust levers are advanced to the takeoff setting after the existing autopilot engagement limitations. The FAA is issuing this AD to address the unsafe condition on these products.