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75-19-05: 75-19-05 GENERAL ELECTRIC COMPANY: Amendment 39-2365. Applies General Electric Company Models CJ610-9 turbojet and CF700-2C, CF700-2D, and CF700-2D-2 turbofan engines which had the gearbox and accessory drive horizontal drive shaft P/N 37C301961P102 aligned with alignment tool P/N 2C5525 within the last 800 hours time in service as of the effective date of this AD. Compliance required within the next 100 hours time in service after the effective date of this AD, unless previously accomplished. To prevent possible accessory drive horizontal drive shaft failure, leading to complete loss of engine power, inspect the horizontal drive shaft for alignment and spline wear, in accordance with General Electric Service Bulletin No. (CJ610) A72-117 or (CF700) A72-130 or later FAA approved revision or an equivalent inspection method approved by the Chief, Engineering and Manufacturing Branch, New England Region, Federal Aviation Administration. Remove worn horizontal drive shafts and mating female splined components and replace with serviceable parts in accordance with General Electric Alert Service Bulletin No. (CJ610) A72-117 or (CF700) A72-130 or later FAA approved revision. Upon request of the operator, an FAA maintenance inspector, subject to prior approval of Chief, Engineering and Manufacturing Branch, FAA New England Region, may adjust the compliance time specified in the AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for that operator. General Electric Company Service Bulletins identified in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these Service Bulletins from General Electric Company may receive copies upon request to General Electric Company, 1000 Western Avenue, Lynn, Massachusetts 01910. These documents may also be examinedat the New England Region, FAA, 12 New England Executive Park, Burlington, Massachusetts 01803, and at FAA headquarters, 800 Independence Avenue S.W., Washington, D.C. A historical file on this AD, which includes the incorporated material in full, is maintained by the FAA at its headquarters in Washington, D.C., and at the New England Regional office in Burlington, Massachusetts. This amendment becomes effective September 26, 1975.
2024-25-51: The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 helicopters. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these helicopters. This AD was prompted by a report of vibrations of the yaw axis during a hover taxi. This AD requires repetitively inspecting the bolted joint between the cardan- pivot joint assembly and the tail rotor actuator piston rod and, depending on the results, taking corrective action. This AD also prohibits installing certain tail rotor actuators unless its requirements are met. These actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2003-16-17: This amendment adopts a new airworthiness directive (AD) that applies to certain Dornier Luftfahrt GMBH (Dornier) Models 228-100, 228-101, 228-200, 228-201, 228-202, and 228-212 airplanes that have electrical cabin/cockpit heater option P05 or option P09 installed. This AD requires you to modify the cockpit and cabin auxiliary heating wiring. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to correct problems with the current design of the heater wiring, which could result in failure of the auxiliary cabin heater. Such failure could lead to overheating and smoke in the cockpit.
47-16-01: 47-16-01 DOUGLAS: (Was Mandatory Note 16 AD-762-7.) Applies to C-54 and DC-4 Aircraft. \n\n\tTo be complied with not later than September 1, 1947. \n\n\tA.\tIn those aircraft having the ammeter shunts in the positive generator leads, install two circuit breakers or circuit breaker switches in each nacelle junction box and reconnect each ammeter lead through one of these circuit breakers. Any type or variety of 10-ampere circuit break may be used, with the exception of the automatic-reset type. \n\n\tB.\tInstall a circuit breaker or circuit breaker switch in the main junction box and connect in series with the voltmeter circuit wire PJ-34 at the (d.c.) buss. Any type or variety of 10-ampere circuit breaker may be used, with the exception of the automatic-reset type. The nonoverride variety of circuit breaker is preferable. \n\n\tC.\tInstall for Heinemann type AM 1614-15-28-2 or equivalent, 15-ampere circuit breaker switches or circuit breakers, at the regulator location, in the leads to the B terminal of the voltage regulators; wires PA-530, PA-531, PA-730, and PA-731. The usual thermal circuit breaker or fuse does not provide sufficient protection to meet the peculiar requirements of a protective device for a generator field circuit application. \n\n\tAdditional information on the foregoing changes are described by Douglas Drawing No. 4350951 entitled "Rework of Generator Field Lead and Volt-Ammeter Lead Circuit Protection". A Douglas Aircraft Service Bulletin on this subject is also being issued.
2003-02-02: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747-400 and -400D series airplanes, that requires repetitive inspections to detect discrepancies of the drip shield and supports located above the rudder pedal mechanisms; corrective action, if necessary; and eventual modification of the drip shield, which would terminate the repetitive inspections. The actions specified by this AD are intended to prevent unrestrained drip shields from interfering with the rudder pedal mechanism, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
2003-16-10: The FAA is adopting a new airworthiness directive (AD) for Pratt & Whitney Canada (PWC) PW206A and PW206E turboshaft engines. This AD requires initial and repetitive borescope inspections of compressor turbine and power turbine blades for blade axial shift, and replacement of blade retaining rivets and certain rotor air seals as terminating action for the repetitive borescope inspections. This AD is prompted by reports of engine shutdowns and emergency landings due to severe vibration and drops in engine torque, and an increase in internal engine temperature, triggering in-flight engine fire warnings. We are issuing this AD to prevent turbine blade axial shift, which could cause high levels of vibration, loss of engine torque, in-flight engine shutdown, and possible uncontained engine failure.
67-14-06: 67-14-06 MARTIN: Amdt. 39-406 Part 39 Federal Register April 28, 1967. Applies to Models 202, 202A, and 404 Series Airplanes. (a) Within the next 15 hours' time in service after the effective date of this AD unless already accomplished within the last 185 hours' time in service, and thereafter at intervals not to exceed 200 hours' time in service from the last inspection, inspect the following areas in both outer wing panel front spars located at 25% of the wing chord for cracks using X-ray or dye penetrant with a glass of at least 10 power, or an FAA-approved equivalent inspection. (1) The lower spar cap in a region 3 inches long from the outer panel closing rib outboard. (2) The spar web inboard of the outer panel closing rib between the rib and the splice bolts. (3) The vertical angle that attaches this web to the outer panel closing rib. (b) If a crack is found, before further flight, replace the cracked part with a part of the same part number that has been inspected in accordance with (a) and found free of cracks or with an equivalent part approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) Equivalent inspections may be approved by an FAA maintenance inspector. (d) All fuel must be drained before X-ray inspection because of lead in the gasoline. (e) Upon request of the operator, the Chief, Engineering and Manufacturing Branch, FAA Eastern Region may increase the compliance times specified in this AD if the request contains substantiating data submitted through an FAA maintenance inspector to justify the increase for that operator. This supersedes AD 59-26-05. This directive effective upon publication in the Federal Register for all person except those to whom it was made effective by telegram dated April 20, 1967.
2016-04-07: We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 767 airplanes. This AD was prompted by reports of cracking at a central part of the structure. This AD requires repetitive inspections of the skin hidden by the upper and lower splice fittings on both sides of the fuselage, and corrective action if necessary. We are issuing this AD to detect and correct fatigue cracking of the hidden fuselage skin and cracking, corrosion, and other damage to the splice fittings and adjacent visible fuselage skin and structure that could lead to loss of a primary load path between the fuselage and the wing box, and consequent reduced structural integrity of the airplane.
2024-26-08: The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB139 and AW139 helicopters. This AD was prompted by reports of broken main landing gear (MLG) shock absorber piston rod eye ends. This AD requires repetitively inspecting the MLG shock absorber piston rod eye ends, reporting the results of the inspection, and, depending on the results, replacing the MLG shock absorber assembly. It also prohibits installing certain MLG shock absorber assemblies unless specific requirements are met, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2016-04-05: We are superseding an airworthiness directive (AD) 2014-03-18 for B-N Group Ltd. Models BN-2, BN-2A, BN-2A-2, BN-2A-3, BN-2A-6, BN- 2A-8, BN-2A-9, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN-2B-20, BN-2B- 21, BN-2B-26, BN-2B-27, BN2A MK. III, BN2A MK. III-2, and BN2A MK. III- 3 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as damage of the cable sliding end assembly and installation of the incorrect end fitting on engine control cable assemblies. We are issuing this AD to require actions to address the unsafe condition on these products.