Results
95-20-05: This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that currently requires repetitive inspections for cracking in the inboard strut-to-diagonal brace attach fittings, and repair or replacement, if necessary. This amendment requires an additional inspection of those attach fittings, and additional inspections in an area beyond that specified in the existing AD. This amendment also provides an optional terminating action for the required inspections, and expands the applicability of the existing AD to include additional airplanes. This amendment is prompted by reports of cracking and severing of the attach fittings. The actions specified by this AD are intended to prevent failure of the strut and separation of an engine from the airplane due to cracking of the inboard strut-to-diagonal brace attach fittings.
2005-07-02: The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 777-200 and -300 series airplanes. This AD requires inspection of the outer cylinder of the main landing gear (MLG) to determine the serial number; an ultrasonic inspection of the outer cylinder of the MLG for cracks if necessary; and applicable specified and corrective actions if necessary. This AD is prompted by reports indicating that two outer cylinders were found fractured in the weld area. We are issuing this AD to detect and correct cracks or defects that could result in a fracture of the outer cylinder of the MLG, which could lead to collapse of the MLG during landing.
95-19-06: This amendment supersedes an existing airworthiness directive (AD), applicable to all British Aerospace Model ATP series airplanes, that currently requires inspections to detect cracking of the aft end of the wing rib boom angles on the left and right engine, and repair or replacement of the wing rib boom angle assemblies, if necessary. That AD was prompted by the detection of cracks in the engine outboard rib boom angles at the main landing gear (MLG) actuator attachment point. The actions specified by that AD are intended to prevent structural failure of the actuator attachment point, which could lead to collapse of the MLG. This amendment limits the applicability of the rule to only a certain number of airplanes; revises the initial inspection threshold, depending on whether or not certain modifications have been accomplished on the boom angles; and requires that modified boom angles be installed whenever replacement is necessary.
2001-21-01: 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. This AD requires you to repetitively inspect the horizontal stabilizer skin and ribs for damage and cracks and repair any damaged skin or cracked ribs. 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 detect and correct damage and fatigue cracks in the horizontal stabilizer skin and ribs. This condition could cause in-flight separation of the horizontal stabilizer skin with consequent loss of control of the airplane.
2008-13-13: We are adopting a new airworthiness directive (AD) for certain Airbus Model A330 airplanes and Model A340-200 and -300 series airplanes. This AD requires revising the airplane flight manual (AFM) to prohibit the flightcrew from performing CAT 2 and CAT 3 automatic landings and roll-outs at certain airports. This AD also provides an optional terminating action for the AFM revision. This AD results from data showing that the magnetic variation table installed in certain Honeywell and Northrop Grumman air data inertial reference units (ADIRUs) is obsolete at certain airports. We are issuing this AD to prevent the airplane from departing the runway during a CAT 2 or CAT 3 automatic landing or roll-out, due to differences between actual magnetic variation and the values in the ADIRU magnetic variation tables.
2008-13-32: 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: It has been determined that the currently used values for Arms of front and rear fuel tanks, and luggage compartment from the CAP 10B Airplane Flight Manuals (AFM), must be rectified. If left uncorrected, these weight and balance data could lead to erroneous determination of the location of the Center of Gravity (CG) and possibly cause operation with the CG outside the approved limits which may result in control difficulty. We are issuing this AD to require actions to correct the unsafe condition on these products.
2001-20-20: This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-90-30 series airplanes, that currently requires replacement of certain ground block screws with new screws; and retermination of the circuit ground wires of the electrical power control unit (EPCU) to separate grounding points. This amendment removes certain airplanes and adds certain other airplanes to the applicability of the existing AD. The actions specified in this AD are intended to prevent a loose electrical ground block of the circuit ground wires of the EPCU, which could result in complete loss of the primary electrical power of an airplane during flight. \n\nThe incorporation by reference of certain other publications, as listed in the regulations, was approved previously by the Director of the Federal Register as of September 19, 2000 (65 FR 49728, August 15, 2000), and as of November 13, 2000 (65 FR 59707, October 6, 2000). \n\n\tComments for inclusion in the Rules Docket must be received on or before December 17, 2001.
2008-13-31: 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: In service events have shown that, after implementation of Dassault Aviation SB (service bulletin) F2000-133 and F2000-166, a risk of engine cowlings separation from the airplane still exists, and may cause potential damages to the engine itself and to the horizontal stabilizer. It is suspected that on-ground improper latching may lead to a radial deformation of engine cowlings in flight and to their eventual escape out of their locking devices. This situation may represent a hazard to the aircraft propulsive system and/or its structural integrity. * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products.
2023-10-06: The FAA is superseding Airworthiness Directive (AD) 2017-06- 07, which applied to all Airbus SAS Model A330-200 Freighter, -200, and -300 series airplanes; and A340-200, -300, -500, and -600 series airplanes. AD 2017-06-07 required identification of potentially affected inboard flap parts, a one-time eddy current inspection to identify which material the parts are made of, and, depending on findings, replacement with serviceable parts. This AD was prompted by a determination that, even if affected inboard flaps were not installed on airplanes during production, affected inboard flaps could be installed on airplanes as spare parts. This AD continues to require the actions in AD 2017-06-07, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD also reduces the allowance for the installation of affected parts under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
95-19-08: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 727-100 and -200 series airplanes, that requires replacing the attaching nutplates on certain engine nose cowls with washers and self-locking nuts. This amendment is prompted by reports indicating that nose cowls separated (or nearly separated) from the engines of certain airplanes following failure of the engine fan blade and subsequent vibration of the engine, which caused loosening of the attach bolts on the nose cowl of the engine. The actions specified by this AD are intended to prevent the attach bolts from becoming loose, which could result in subsequent separation of the nose cowl from the engine.