Results
2001-23-03: This amendment supersedes Airworthiness Directive (AD) 80-04-08, which requires inspecting (one-time) the fuel line and map light switch in the left hand forward door post for chafing or arcing on certain Cessna Aircraft Company (Cessna) Model 172N, R172K, F172N, and FR172K airplanes and repairing any damage found. AD 80-04-08 also requires providing at least a 0.50-inch clearance between the map light switch and the fuel line; and installing a switch cover (insulator) over the map light switch. This AD requires you to extend the inspections and installation of the switch cover requirement to certain 172N, 172P, R172K, 172RG, F172N, F172P, FR172J, and FR172K series airplanes. This AD also requires replacement of the fuel line, if damaged; and makes the switch cover inspection and replacement repetitive. This AD is the result of FAA receiving several reports of incidents of electrical shorts on Cessna Model 172N airplanes. The actions specified by this AD are intended to detectand correct any chafing between the map light switch and the bordering fuel line, which could result in a fuel leak and an in-flight fire.
2020-07-20: The FAA is superseding Airworthiness Directive (AD) 2004-06- 01, which applied to certain Dornier Model 328-100 series airplanes; and AD 2009-06-09, which applied to all Dornier Model 328-100 series airplanes. AD 2004-06-01 required replacement of the existing main landing gear (MLG) leg assembly with a modified assembly. AD 2009-06-09 required modifying the MLG main body and trailing arm bushings, and revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD continues to require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address the unsafe condition on theseproducts.
94-20-07: This amendment adopts a new airworthiness directive (AD), applicable to PTC Aerospace Model 91700 passenger oxygen system, installed in PTC Aerospace Model 881, 940, and 950 seats installed on McDonnell Douglas DC-10 series aircraft. This AD requires a one-time inspection to verify the proper configuration and functioning of the passenger oxygen system, and replacement, if necessary, with serviceable parts. This amendment is prompted by oxygen canisters failing to activate due to the installation of incorrect pin release brackets or defective oxygen canister release pins. The actions specified by this AD are intended to prevent failure of the passenger oxygen system to activate.
2007-25-12: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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: After a push back from the gate, an A320-200 aircraft was preparing to initiate taxi, when a NLG (nose landing gear) uncommanded retraction occurred, and then the aircraft abruptly hit the ground. * * * Untimely unlocking and/or retraction of the NLG, while on the ground, could cause injury to ground personnel and significant structural damage to the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.
2001-22-17: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-81, -9-82, -9-83, and -9-87 series airplanes; Model MD-88 airplanes; and Model MD-90-30 series airplanes. This action requires repetitive inspections of the electric motors (or motors) of the auxiliary hydraulic pump for electrical resistance, continuity, mechanical rotation, and associated wiring resistance/voltage; and corrective actions, if necessary. The actions specified by this AD are intended to prevent various failures of the electric motor(s) of the auxiliary hydraulic pump and associated wiring, which could result in fire at the auxiliary hydraulic pump and consequent damage to the adjacent electrical equipment and/or structure. This action is intended to address the identified unsafe condition. \n\n\tThe incorporation by reference of McDonnell Douglas Alert Service Bulletin MD80-29A067, dated October 21, 1999; and McDonnell Douglas Alert Service Bulletin MD90-29A018, dated October 21, 1999; as listed in the regulations, is approved by the Director of the Federal Register as of December 18, 2001.
2020-07-22: The FAA is adopting a new airworthiness directive (AD) for PZL Swidnik S.A. (PZL) Model PZL W-3A helicopters. This AD requires inspecting the main gearbox (MGB) bolts and washers to determine if they are properly locked and, depending on the inspection outcome, removing the engine, removing certain bolts from \n\n((Page 21755)) \n\nservice, and performing more in-depth inspections; and depending on the outcome of those inspections, replacing the graphite seal assembly or removing it from service. Finally, this AD prohibits installing any affected MGB on a helicopter unless it has met the requirements of this AD. This AD was prompted by reports that the bolts securing the input quill and graphite seal assembly of the MGB were not properly locked. The actions of this AD are intended to address an unsafe condition on these products.
94-21-06: This amendment adopts a new airworthiness directive (AD), applicable to certain Pacific Scientific lap belt assemblies and restraint systems, that requires removal of certain lap belt assemblies and restraint systems, and replacement with a differently designed assembly. This amendment is prompted by a report indicating that, subsequent to an accident involving a transport category airplane, some passengers experienced difficulty in attempting to release the buckle on their lap belts. The actions specified by this AD are intended to prevent the inability of passengers or crew to egress from their seats during an emergency situation, due to problems associated with the lap belt assembly.
2008-05-01: The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF34-8C1/-8C5/-8C5B1/-8E5/-8E5A1, and CF34-10E series turbofan engines with certain part number (P/N) and serial number (SN) fuel metering units (FMU) installed. This AD requires a onetime test of the FMU for a miswired (reversed polarity) condition of the input wires to the overspeed solenoid. This AD results from the discovery of miswired FMU overspeed solenoids in the field. We are issuing this AD to prevent the engine from failing to shutdown during an overspeed which may lead to uncontained engine failure.
2001-22-15: This amendment adopts a new airworthiness directive (AD) that applies to all Pilatus Aircraft Ltd. (Pilatus) Models PC-12 and PC-12/45 airplanes. This AD requires you to inspect the cargo doors to identify front and rear end frames with plain lightening holes and install reinforcing plates on any frame with plain lightening holes. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. The actions specified by this AD are intended to prevent cracking at the edges of the unflanged lightening holes, which could result in major structural damage to the airplane. Such damage could result in possible loss of control of the airplane.
2020-07-21: The FAA is adopting a new airworthiness directive (AD) for certain Yabor(atilde) Ind(uacute)stria Aeron(aacute)utica S.A. Model ERJ-170 airplanes and Model ERJ 190-100 STD, -100 LR, -100 ECJ, -100 IGW, -200 STD, -200 LR, and -200 IGW airplanes. This AD was prompted by a determination that certain main landing gear (MLG) aft pintle pins repaired using a sulphamate nickel plating have a life limit that is less than the certified life limit. This AD requires a one-time records review or a general visual inspection (GVI) of the MLG aft pintle pins to determine if certain repairs were done, and replacement of certain MLG aft pintle pins with serviceable MLG aft pintle pins, as specified in an Ag(ecirc)ncia Nacional de Avia(ccedil)(atilde)o Civil (ANAC) Brazilian AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.