Results
72-11-01: 72-11-01 PIPER AIRCRAFT: Amdt. 39-1448. Applies to PA-23-235, PA-23-250, and PA-E23-250 series airplanes Serial Numbers 27-1 through 27-4765 inclusive, equipped with non-supercharged engines, including airplanes modified in accordance with STC SA179CE and STC SA867SW and certificated in all categories. Compliance required as indicated. In order to prevent possible explosion and fire resulting from fuel vapor ignition during engine starting, accomplish the following: a. Serial Numbers 27-1 through 27-2504 inclusive: Prior to first flight of each day, visually check the lower surface of the wings in the areas of the fuel cells and aft nacelle for fuel stains and any odor of fuel vapor. If fuel stains or any other sign of fuel leakage are observed, the source of leakage must be determined and repairs or replacements accomplished prior to further flight, in accordance with Section IX of Piper Service Manual No. 753464 or an equivalent repair approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. b. Serial Numbers 27-2505 through 27-4765 inclusive: Inspect in accordance with paragraph (a) above within 50 hours' time in service after the effective date of this AD or since the last inspection and every 50 hours thereafter. c. The checks required by paragraphs (a) and (b) above may be performed by the pilot, including pilots of aircraft engaged in Air Carrier operations. A chronological listing of compliance with this AD must be made in the airplane's permanent maintenance log in accordance with FAR 91.173. d. When the instruction paragraph contained in Piper Service Letter No. 606 is complied with or equivalent inspections and alterations approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, further compliance with this AD is not required. (Piper Service Letters Nos. 449 and 449A refer to this subject.) This AD supersedes AD 70-03-08. This amendment is effective May19, 1972.
2000-26-06: This amendment supersedes an existing airworthiness directive (AD) that applies to Eurocopter Deutschland GMBH (ECD) Model MBB-BK 117 helicopters. That AD currently requires, before further flight, creating a component log card or equivalent record and determining the calendar age and number of flights on each tension-torsion (TT) strap. This amendment establishes a life limit for certain main rotor TT straps. This amendment is prompted by an accident in which a main rotor blade (blade) separated from an ECD Model MBB-BK 117 helicopter due to fatigue failure of a TT strap. The actions specified by this AD are intended to prevent fatigue failure of a TT strap, loss of a blade, and subsequent loss of control of the helicopter.
2019-12-10: The FAA is adopting a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
2007-11-20: The FAA is adopting a new airworthiness directive (AD) for GE CF6-80 series turbofan engines with fuel shroud retaining rings, part number (P/N) J204P0084, installed. This AD requires replacing those retaining rings with a more robust design fuel shroud retaining snap ring. This AD results from two events of external engine fuel leakage and a subsequent under-cowl engine fire. We are issuing this AD to prevent an under-cowl engine fire and damage to the airplane during an engine high vibration event.
2017-14-09: We are adopting a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 Mark 0100 airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that certain wing fuel tank access panels are subject to widespread fatigue damage (WFD). This AD requires replacement of affected access panels and modification of the coamings of the associated access holes. We are issuing this AD to address the unsafe condition on these products.
2004-11-06: This amendment adopts a new airworthiness directive (AD) for the specified Agusta S.p.A. (Agusta) model helicopters that requires disabling certain windshield wipers and thereafter modifying the electrical system of the windshield wipers by installing a new resistor and condenser, eliminating incompatibility problems with the relays, and replacing the timed relay for certain windshield wiper kits. This amendment is prompted by testing that revealed overheating of the electrical resistor on the electrical system of the windshield wipers due to a system overload because of a partial incompatibility of new timed relays with the configuration of the windshield wiper electrical system. The actions specified by this AD are intended to prevent the incompatibility of certain relays with the windshield wiper electrical system, overheating of the resistor due to system overload, and an electrical fire.
2001-01-10: This amendment adopts a new airworthiness directive (AD) that is applicable to all Boeing Model 747-400, 747-400F, 767-200, and 767-300 series airplanes equipped with Pratt & Whitney Model PW4000 series engines. This action requires revising the Airplane Flight Manual (AFM). This action is necessary to prevent reduced acceleration and climb performance relative to performance data in the AFM, which could result in runway overruns or impact with obstacles or terrain. This action is intended to address the identified unsafe condition.
2007-11-17: The FAA is superseding an existing airworthiness directive (AD), which applies to certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes. That AD currently requires installing identification sleeves on the wires for the positive and negative terminal studs of the engine and/or auxiliary power unit (APU) fire extinguishing bottles, as applicable, and re-connecting the wires to the correct terminal studs. This new AD retains the requirements of the existing AD; adds airplanes to the applicability; and, for certain airplanes only, requires a review of wiring changes made using the original issue of one service bulletin and corrective actions if necessary. This AD results from a determination that additional airplanes are subject to the unsafe condition described in the existing AD. We are issuing this AD to ensure that the fire extinguishing bottles are activated in the event of an engine or APU fire, and that flammable fluids are not supplied during a fire, which could result in an unextinguished fire in the nacelle or APU. DATES: This AD becomes effective July 6, 2007. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of July 6, 2007. On March 24, 2006 (71 FR 8443, February 17, 2006), the Director of the Federal Register approved the incorporation by reference of certain other publications listed in the AD.
2001-01-04: This amendment adopts a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, S-76B, and S-76C helicopters. This AD requires initial and repetitive inspections of the main landing gear positioning rod assembly (rod assembly) and the side brace rod end (rod end) for corrosion. If any corrosion is found, this AD requires replacing any part that is corroded with an airworthy part before further flight. This amendment is prompted by a landing gear collapse caused by corrosion due to dissimilar metals in the landing gear rod end. The actions specified in this AD are intended to detect corrosion of the threaded joint in the rod assembly to prevent a collapse of the landing gear, and subsequent loss of control of the helicopter during landing.
2018-02-20: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. This AD was prompted by reports of corrosion in the aft fuselage. This AD requires a one-time review of the operator's maintenance procedures, repetitive detailed internal and external inspections for corrosion or cracking, and applicable on-condition actions. This AD also includes an optional terminating action for the inspections. We are issuing this AD to address the unsafe condition on these products.