Results
88-05-02: 88-05-02 BRITISH AEROSPACE (BAe) PLC: Amendment 39-5858. Applies to Model DH/BH/HS 125 series airplanes listed in BAe 125 Service Bulletins 57-67 and 53-63, both dated February 27, 1987, certificated in any category. Compliance is required as indicated, unless previously accomplished. To detect fatigue cracking in the airplane structure, which could result in the inability of the structure to meet required loads, accomplish the following: A. For airplane serial numbers as listed in BAe-125 Service Bulletin 57-67 dated February 27, 1987: Prior to the accumulation of 12,000 flights, or within 8 months after the effective date of this AD, whichever occurs later, visually inspect the wing bottom skin for cracks at the flap outboard hinge fitting in accordance with that service bulletin. Repair detected cracks prior to further flight in accordance with an FAA approved method. B. For airplane serial numbers as listed in BAe-125 Service Bulletin 53-63, dated February27, 1987: Prior to the accumulation of 7,500 flights, or within 6 months after the effective date of this AD, whichever occurs later, visually inspect the fuselage skin beneath the canopy blister for cracks in accordance with that service bulletin. Repair detected cracks prior to further flight in accordance with an FAA approved method. C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, and which has the concurrence of an FAA Principal Maintenance Inspector, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections required by 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, Inc., Service Bulletin Librarian, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment becomes effective April 6, 1988.
2000-07-21: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires a general visual inspection of wiring behind the control panel of the auxiliary power unit (APU) located in the cockpit to detect chafing; repair if necessary; and modification of the wiring. This amendment is prompted by an incident of chafing of wire bundles of the control module of the APU. The actions specified by this AD are intended to prevent such chafing and resultant arcing due to insufficient clearance between the wire bundles and the airplane structure, which could result in smoke and fire in the flight deck.
2015-02-08: We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Corporation (RRC) AE 2100 series turboprop engines and AE 3007A and 3007C series turbofan engines. This AD was prompted by reports of pitting in the wheel bores and subsequent RRC analysis that concluded that lower life limits are needed for the affected turbine wheels. This AD requires a reduction for the approved life limits of the affected turbine wheels. This AD also requires an eddy current inspection (ECI) of certain RRC engines with affected turbine wheels. We are issuing this AD to prevent uncontained failure of the turbine wheels, damage to the engine, and damage to the airplane.
2000-07-23: This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-8-100 series airplanes, that requires changing the power supply for the thunderstorm lights from the left secondary bus to the left essential bus. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent a failure of the thunderstorm lights in the cockpit after loss of all generated electrical power. This condition could result in the cockpit instruments not being visible to the flight crew during certain emergency procedures, and consequent reduced controllability of the airplane.
49-38-01: 49-38-01 CONVAIR: Applies to All Model 240 Aircraft Incorporating Original Type Nose Strut Outer Cylinder, Bendix P/N 156842. To be accomplished on No. 1 inspection on all nose landing gear struts whose total operating time exceeds 1,000 hours. Cracking of the nose gear landing struts in the areas directly below the drag link attachment legs, has been experienced on some CV-240 service aircraft whose total time exceeds approximately 1,000 hours. These cracks appear to be the result of repeated loadings experienced by the gear during landings. In order to insure the continued airworthiness of the aircraft, the nose landing gear shall be examined closely, using visual means, for evidence of any cracks in the areas directly below the drag strut attachment lugs. When cracks are found, it may be possible to repair the damage by grinding, blending and polishing, depending upon the extent and depth of the cracks. All struts not eligible for such repairs are to be retired from service. (Bendix Service Bulletin L. G. 509 covers the subject.) The above-described inspection may be discontinued on those struts which have been reinforced by the addition of a support clamp and eyebolts, or their equivalent, to alleviate the loading condition which caused the development of cracks. Struts reworked in accordance with Bendix Service Bulletin L.G. 511 and incorporating a support clamp and eyebolts in accordance with Bendix Service Bulletin L.G. 510 are eligible for service and do not require the above inspection. (Bendix Service Bulletin L.G. 310 covers this same subject.)
2015-02-27: We are superseding Airworthiness Directive (AD) 2013-19-19 for certain Eurocopter France Model AS332C, AS332L, AS332L1, AS332L2, and EC225LP helicopters. AD 2013-19-19 required replacing certain serial- numbered main gearbox (MGB) bevel gear vertical shafts and inspecting and replacing, if necessary, each MGB bevel gear vertical shaft (shaft). This new AD requires the same actions as AD 2013-19-19 but corrects an error in the term used to identify an inspection qualification and updates the type certificate holder's name. This AD is prompted by two incidents of emergency ditching after warning indications of loss of MGB oil pressure. These actions are intended to detect a cracked shaft, which could result in loss of MGB oil pressure, loss of the MGB lubrication system, and subsequent loss of control of the helicopter.
2000-07-16: This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 and MD-11F series airplanes, that currently requires modification of the external power feeder cable clamping installation. This amendment also requires a detailed visual inspection of the external power feeder cables to detect chafed or damaged wires; and repair, if necessary. This amendment is prompted by reports of damage to the external power feeder cables located under the forward cargo compartment floor, which was caused by excessive cable length and/or maintenance personnel stepping on the cables. The actions specified by this AD are intended to prevent arcing from occurring under the forward cargo compartment floor as a result of damaged external power feeder cables, a situation that could lead to a fire at this location.
70-16-01: 70-16-01 WOODWARD: Amdt. 39-1054. Applies to Woodward Governor Company primary turbo propeller governors mounted on United Aircraft of Canada PT6A series engines installed in airplanes incorporating propeller reversing provisions and Woodward Governor Company overspeed turbo propeller governors mounted on United Aircraft of Canada PT6A series engines installed in airplanes having auto feathering provisions. Compliance: Required within the next 50 hours' time in service after the effective date of this AD, unless previously accomplished. To prevent uncontrolled feathering accomplish the following or an equivalent procedure approved by the Chief, Engineering & Manufacturing Branch, FAA, Central Region. A) On primary propeller governors inspect for safety wire security the three coil retaining screws on the lock pitch solenoid valve, Woodward P/N 1310-506 or 1310-511. B) On overspeed propeller governors inspect for safety wire security the three coil retaining screws on the autofeathering solenoid valve, Woodward P/N 1310-110 or 1310-115. C) If screws inspected in accordance with Paragraphs A and B are not secured by safety wire, prior to return to service, replace said screws with socket head screws, Woodward P/N 1039-240, torque 18 to 22 lb. in., and secure by AMS 5685 0.024 to 0.026 in. dia. safety wire. Screws must be removed, replaced and torqued one at a time to avoid valve disassembly. NOTE: It may be necessary to remove two solenoid valve base retaining screws, Woodward P/N 33048-201 to gain access to the coil retaining screws. Removal and replacement of these two screws should be accomplished in the manner prescribed for the coil retaining screws. Woodward Service Bulletin 33532B, Supplement 1 and United Aircraft of Canada, Limited, Engine Service Bulletin No. 198 pertain to this subject. The inspections and modifications prescribed in this AD may be accomplished by a certified mechanic with a powerplant rating.NOTE: Governors to which this AD applies are known to be installed on the following airplanes, but this listing is not necessarily all inclusive: Primary propeller governors - Beech Models 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, B90, 99, 99A, 100; DeHavilland Models 1, 100, 200, 300; Helio Models HST-550, HST-550A; Swearingen Model SA26-5; Pilatus Model PC-6/B-H2, PC-6/B1-H2; McKinnon Models G21C, G21D, G21E, G21G; Grumman Model G21A (Serial Number B52 only); and Beech 18 series airplanes modified per STC SA 1016 WE. Overspeed propeller governors - Beech Model 65-A90-1, 68-A90-2, 65-A90-3, B90, 99, 99A and 100 airplanes. This amendment shall become effective August 4, 1970.
2015-02-18: We are adopting a new airworthiness directive (AD) for all Airbus Model A330-201, -202, -203, -301, -302, and -303 airplanes. This AD requires a one-time ultrasonic inspection for fractures of all aft mount-pylon bolts of each engine. This AD was prompted by a report of one bolt on the aft engine mount upper beam found totally broken. We are issuing this AD to detect and correct fracture of the aft mount- pylon bolts, which could result in failure of the engine mount and consequent detachment of the engine.
2000-07-18: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 and MD-11F series airplanes, that requires a one-time detailed visual inspection of the generator power feeder wires to detect chafed or damage wires; repair, if necessary; and a modification of the generator power feeder wire installation. This amendment is prompted by reports of generator power feeder wire chafing on the closeout rib of the wing leading edge at a certain station due to insufficient clearance between the generator power feeder wires and the closeout rib. The actions specified by this AD are intended to prevent chafed and burnt generator power feeder wires, which could result in arcing damage to a certain closeout rib of the wing leading edge and fire damage to the wing structure, and consequent reduced structural integrity of the wing.