Results
2007-19-11: The FAA is superseding an existing airworthiness directive (AD) for Turbomeca Artouste III B, Artouste III B1, and Artouste III D turboshaft engines. That AD currently requires removing certain fuel pumps from service and installing serviceable fuel pumps. This AD requires the same actions and adds to the applicability, additional fuel pumps by serial number (SN). This AD results from Turbomeca identifying a number of fuel pump SNs that they omitted from the original population. We are issuing this AD to prevent reduced engine fuel flow and subsequent loss of control of the helicopter, or an accident.
2000-26-09 R1: This amendment revises an existing airworthiness directive (AD), applicable to all Dornier Model 328-100 series airplanes, that currently requires revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate life limits for certain items and inspections to detect fatigue cracking in certain structures. This amendment adds information pertaining to certain material incorporated by reference. This amendment is prompted by the issuance of revisions to the Dornier 328 Airworthiness Limitations Document. The actions specified by this AD are intended to ensure that fatigue cracking of certain structural elements is detected and corrected; such fatigue cracking could adversely affect the structural integrity of these airplanes.
2018-09-17: We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601 Variant), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes. This AD was prompted by reports of fractured rudder pedal tubes on the pilot-side rudder bar assembly. This AD requires repetitive inspections of the rudder pedal tubes for cracking and corrective actions if necessary. Replacement of both pilot-side rudder bar assemblies terminates the inspections. We are issuing this AD to address the unsafe condition on these products.
2007-21-01: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: During a recent flight with a DG-500 ELAN Trainer, the bolt of bearing stand 5RU61, which is the pivot for bell crank 5St19, failed in-flight, leading to loss of control of the aircraft. Although the occupants managed to exit the aircraft safely, the aircraft crashed and was damaged beyond repair. While the investigation continues, the most likely cause is suspected to be insufficient tightening of the nut on the bolt of bearing stand 5RU61. This condition, if not corrected, may cause excessive bending loads, leading to premature failure of the bolt and loss of control of the aircraft. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
2021-24-01: The FAA is adopting a new airworthiness directive (AD) for Pilatus Aircraft Ltd. (Pilatus) Model PC-12/45, PC-12/47, and PC-12/47E airplanes with Supplemental Type Certificate (STC) SA00634DE installed. This AD was prompted by a report of strake attachment brackets and the fuselage frame failing at the upper most bracket attachment location. This AD requires inspecting the strake, attachment brackets, surrounding structure, and bolts and replacing components and repairing damage if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
94-03-05: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747-200B, -200C, -300, -400, and 400D series airplanes, that requires a revision to the FAA-approved maintenance program to require unrestricted opening of the passenger service unit (PSU) door during functional testing of the passenger oxygen system; and requires an inspection to detect leaks in certain passenger oxygen system reservoir bags, and marking and replacement of damaged mask assemblies. This amendment is prompted by reports that the passenger oxygen mask reservoir bags became overpressurized and split at the seams, resulting in failure of the bags. The actions specified by this AD are intended to ensure the delivery of emergency oxygen through the passenger oxygen system reservoir mask assemblies.
2008-23-08: We are adopting a new airworthiness directive (AD) for the products listed above. 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: In-service experience indicates that the powder coating of the rear right hand (RH) engine support bracket degrades over time, leading to a reduced torque of the engine mountings bolts. In some cases, bolts had fully unscrewed and fell into the engine cowling. One case was reported where the pilot had to shut down an engine in flight because of a failed V-belt, the cause of failure assumed to be one of these bolts. This condition, if not corrected, may lead to further cases of loose bolts and subsequent damage to the engine or accessories in the engine compartment, possibly resulting in in- flight engine shut-down and reduced control of the aircraft. Weare issuing this AD to require actions to correct the unsafe condition on these products.
94-01-13: This amendment adopts a new airworthiness directive (AD), applicable to certain de Havilland Model DHC-8-300 series airplanes, that requires modifying the airplane fire detection system and revising the Airplane Flight Manual (AFM) to include procedures related to operating the system. This amendment is prompted by reports of several oil fires in the inter compressor case (ICC) assembly. The actions specified by this AD are intended to prevent severe structural damage to the airplane due to an internal engine fire within the ICC.
2007-20-04: The FAA is superseding an existing airworthiness directive (AD) that applies to all Airbus Model A300 and A310 airplanes, and certain Model A300-600 series airplanes. That AD currently requires an inspection of the wing and center fuel tanks to determine if certain P- clips are installed and corrective action if necessary. That AD also requires an inspection of electrical bonding points of certain equipment in the center fuel tank for the presence of a blue coat and related investigative and corrective actions if necessary. That AD also requires installation of new bonding leads and electrical bonding points on certain equipment in the wing, center, and trim fuel tanks, as necessary. This new AD requires, for certain airplanes, installation of bonding on an additional bracket and modification of the fuel/defuel valves on the left-hand wing. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to ensure continuous electrical bonding protection of equipment in the wing, center, and trim fuel tanks and to prevent damage to wiring in the wing and center fuel tanks, due to failed P-clips used for retaining the wiring and pipes, which could result in a possible fuel ignition source in the fuel tanks.
2019-20-08: The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation (Gulfstream) Model G-IV and Model GIV-X airplanes. This AD was prompted by a revision to the airworthiness limitations section (ALS) of the aircraft maintenance manual (AMM) based on fatigue and damage tolerance testing and updated analysis. This AD requires revising the maintenance or inspection program to incorporate updated inspection requirements and life limits that address fatigue cracking of principal structural elements. The FAA is issuing this AD to address the unsafe condition on these products.