Results
2005-04-03: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 747-400, -400D, and -400F series airplanes. This AD requires replacing at least one flap control unit (FCU) in the main equipment center with a new or modified FCU. This AD is prompted by a report indicating that, after takeoff, an airplane was required to return to the airport because the autopilot disengaged. The report also indicated that, after selecting flaps for landing, the flaps indication display did not indicate the flap setting, requiring the airplane to land in alternate flap mode. We are issuing this AD to prevent disconnection of autoland/autopilot functions and loss of primary flaps control and flaps indication display due to disengagement of all three FCUs at the same time, which could lead to a non-normal high speed landing with the flaps retracted, increased pilot workload, and possible runway departure at high speeds during landing.
2020-15-20: The FAA is superseding Airworthiness Directive (AD) 2019-03- 11, which applied to certain Airbus SAS Model A350-941 and -1041 airplanes. AD 2019-03-11 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and airworthiness limitations. This AD requires 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. The FAA is issuing this AD to address the unsafe condition on these products.
2008-10-06: We are adopting a new airworthiness directive (AD) for certain Boeing Model 747-400, -400D, and -400F series airplanes. This AD requires revising the FAA-approved maintenance program by incorporating new airworthiness limitations (AWLs) for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. This AD also requires the initial inspection of certain repetitive AWL inspections to phase in those inspections, and repair if necessary. This AD results from a design review of the fuel tank systems. We are issuing this AD to prevent the potential for ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
2001-17-27: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Israel Aircraft Industries, Ltd., Model Astra SPX and 1125 Westwind Astra series airplanes. This action requires one-time detailed visual and eddy current inspections for cracking of the drag brace on the nose landing gear, and replacement of the drag brace, if necessary. This action is necessary to prevent failure of the nose landing gear. This action is intended to address the identified unsafe condition.
95-13-07: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that requires modification of the nacelle strut and wing structure, inspections and checks to detect discrepancies, and correction of discrepancies. This amendment is prompted by the development of a modification of the strut and wing structure that improves the damage tolerance capability and durability of the strut-to-wing attachments, and reduces reliance on non-routine inspections of those attachments. The actions specified by this AD are intended to prevent failure of the strut and subsequent loss of the engine.
2008-10-10: We are adopting a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD requires revising the Airworthiness Limitations (AWLs) section of the Instructions for Continued Airworthiness by incorporating new limitations for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. This AD also requires the initial inspection of a certain repetitive AWL inspection to phase in that inspection, and repair if necessary. This AD results from a design review of the fuel tank systems. We are issuing this AD to prevent the potential for ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
2020-17-03: The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A318-111, -112, -121, and -122 airplanes; Model A319-111, -112, -113, -114, -115, -131, -132, and -133 airplanes; Model A320-211, -212, -214, -216, -231, -232, and -233 airplanes; and Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes. This AD was prompted by reports of fatigue cracks on continuity fittings at the lower framing of the front windshield on airplanes on which a certain production modification has been embodied. Additional analysis showed that certain certification requirements for damage tolerance and fatigue are not met on airplanes in a certain post- production modification configuration. This AD requires repetitive high frequency eddy current (HFEC) inspections of the central node windshield area for cracking, and applicable corrective actions if cracking is found, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
95-13-06: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that requires modification of the nacelle strut and wing structure, inspections and checks to detect discrepancies, and correction of discrepancies. This amendment is prompted by the development of a modification of the strut and wing structure that improves the damage tolerance capability and durability of the strut-to-wing attachments, and reduces reliance on non-routine inspections of those attachments. The actions specified by this AD are intended to prevent failure of the strut and subsequent loss of the engine.
2008-10-04: This amendment adopts a new airworthiness directive (AD) for the specified Sikorsky Aircraft Corporation (Sikorsky) model helicopters that requires installing an electric chip detector on each engine and an on-board chip detector annunciation system. The AD also requires revising the Rotorcraft Flight Manual (RFM) to add procedures for crew response to the illumination of an on-board chip detector warning light. This AD also requires testing the engine chip detector system at specified intervals. This amendment is prompted by reports of Number 5 engine bearing failures. Failure of the bearing resulted in erratic movement of the high-speed, engine-to-transmission shaft (shaft), an oil leak, an in-flight fire, and an emergency landing. The actions specified by this AD are intended to detect an impending bearing failure, which if undetected and not addressed by appropriate crew action may result in an oil leak, a severed shaft housing, an uncontained in-flight fire, and a subsequent emergency landing.
2001-17-20: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 707 and 720 series airplanes, that requires replacement of wiring for the fuel boost pumps and override pumps with new wiring, installation of Teflon sleeving on the wiring, and associated actions. This amendment also requires repetitive inspections to detect damage of the wiring or evidence of a fuel leak. This amendment is necessary to detect and correct damaged wiring for the fuel boost pumps and override pumps, which could cause electrical arcing that could puncture the conduit containing the wire, and result in an explosion or fire adjacent to the fuel tank. This action is intended to address the identified unsafe condition.
95-13-08: This amendment supersedes an existing airworthiness directive (AD), applicable to Pratt & Whitney Canada (PWC) PT6A-67D turboprop engines, that currently requires inspections of the compressor turbine (CT) disk and blades for cracking and other irregularities using visual inspections and fluorescent penetrant inspections (FPI). That AD also requires amending the Beech Model 1900D Airplane Flight Manual (AFM) and installing a placard that alerts the pilot of a requirement to restrict continuous engine operation above 94.0% and below 97.1% N1 (Gas Generator RPM). In addition, that AD requires the installation of parts having an improved design including a CT stator assembly, a CT shroud housing, CT turbine blades, feather seals, and a small exit duct assembly. This amendment continues the requirements of the current AD and adds the requirements to remove the placard from the cockpit and to remove the amendment to the AFM after installation of the improved engine components.This amendment is prompted by reports from operators and the manufacturer stating that the engine RPM operating restriction is not required after installation of the improved engine components, and that this engine operating restriction can impact aircraft handling. The actions specified by this AD are intended to prevent aircraft handling problems due to imposition of the engine RPM restriction.
2005-04-05: This amendment adopts a new airworthiness directive (AD), applicable to certain EMBRAER Model EMB-135 and -145 series airplanes. This AD requires repetitive detailed inspections of the oil in the air turbine starter (ATS) to determine the quantity of the oil and the amount of debris contamination in the oil. If the oil quantity is incorrect or if excessive debris is found in the oil, this AD requires replacement of the ATS with a new or serviceable ATS, and continued repetitive detailed inspections. This AD also requires eventual replacement of each ATS with a new, improved ATS, which constitutes terminating action for the repetitive detailed inspections. This action is necessary to prevent a flash fire in the nacelle, which would result in the flightcrew shutting down the engine during flight, and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
2003-19-03: This amendment adopts a new airworthiness directive (AD), applicable to certain Dornier Model 328-100 and -300 series airplanes, that requires inspection of the nose landing gear (NLG) and main landing gear (MLG) to ensure that certain bolts are in place; repetitive inspections of the bolts and bolt areas for evidence of corrosion; and corrective action, if necessary. This action is necessary to prevent failure of the NLG or MLG due to corroded or missing bolts, which could cause loss of connection pins, and consequent collapse of the landing gear during ground maneuvers or upon landing. This action is intended to address the identified unsafe condition.
2001-17-18: This amendment adopts a new airworthiness directive (AD); applicable to certain Boeing Model 737-100, -200, and -200C series airplanes; that requires repetitive inspections of certain floor beams and transverse beams, and corrective actions, if necessary. For certain airplanes, this AD also provides optional terminating action for the repetitive inspections. The actions specified by this AD are intended to detect and correct cracking at the aileron control quadrant cutouts and in the cabin floor beams and pressure web transverse beams above the main wheel well, which could result in rapid loss of cabin pressure and reduced structural integrity of the airframe.
95-08-10: This document publishes in the Federal Register Airworthiness Directive (AD) 95-08- 10 that was sent previously to all known U.S. owners and operators of Teledyne Continental Motors (TCM) Model TSIO-360 E, EB, F, FB, G, GB, KB, LB, MB, and Model LTSIO-360 E, EB, and KB reciprocating engines by individual letters. This AD requires replacement of the suspect turbocharger check valves prior to further flight, and prohibits special flight permits. This amendment is prompted by three reported engine failures caused by incorrectly assembled turbocharger oil outlet check valves, resulting in an improperly expanded rivet that held the check valve flapper assembly together as one unit. The actions specified by this AD are intended to prevent complete engine failure due to an incorrectly assembled turbocharger oil outlet check valve.
2001-17-15: This amendment supersedes an existing airworthiness directive (AD), AD 95-09-02, that applies to Honeywell International Inc. (formerly AlliedSignal Inc. and Textron Lycoming Inc.) LTS101 series turboshaft and LTP101 series turboprop engines. That AD superseded priority letter AD 94-19-01 and currently requires initial and repetitive inspections of the engine fuel pump internal drive splines for wear and replacement of engine fuel pumps that exhibit wear beyond specified limits.This amendment requires a reduction in inspection intervals for the engine fuel pump internal drive splines. This amendment is prompted by a report from the engine manufacturer that 13 percent of the pumps installed on aircraft that were returned from the field for the required 900-hour interval inspection revealed excessive internal drive spline wear. The actions specified by this AD are intended to prevent worn splines in fuel pumps which could cause engine fuel pump failure, which can result in totalengine power loss and possible loss of the aircraft.
2023-02-18: The FAA is superseding Airworthiness Directive (AD) 2022-09- 03, which applied to certain Airbus SAS Model A350-941 and -1041 airplanes. AD 2022-09-03 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require the actions in AD 2022-09- 03 and requires revising the existing maintenance or inspection program, as applicable, to incorporate additional new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.
95-13-03: This amendment adopts a new airworthiness directive (AD) that applies to certain Beech Aircraft Corporation (Beech) Model F90, and 99, 100, and 200 series airplanes. This action requires installing a circuit breaker that will open before the landing gear power system motor is damaged to the point of restricting operation of the manual landing gear extension system. An incident where excessive current flow caused the electrical landing gear motor and wiring to catch fire on a Beech Model 200 airplane prompted this action. The actions specified by this AD are intended to prevent excessive current flow through the electrical landing gear motor, which could cause an airplane fire.
2018-20-02: We are superseding Airworthiness Directive (AD) 98-18-24, which applied to certain Airbus SAS Model A320 series airplanes. AD 98- 18-24 required repetitive inspections to detect cracking in the inner flange of a certain door frame, and corrective actions, if necessary. AD 98-18-24 also provided an optional terminating action for the repetitive inspections. This AD continues to require the repetitive inspections of the inner flange of a certain door frame, with reduced repetitive inspection intervals, and corrective action if necessary. This AD was prompted by a report of cracks on the inner flange of a certain door frame, and by the results of a full scale fatigue test that indicated the intervals for the repetitive inspections required by AD 98-18-24 must be reduced. We are issuing this AD to address the unsafe condition on these products.
2018-19-31: We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A310 series airplanes. This AD was prompted by a determination that new or more restrictive maintenance requirements and airworthiness limitations are necessary. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.
95-12-16: This amendment supersedes priority letter Airworthiness Directive (AD) 95-07-04, which currently requires the following on certain Mooney Aircraft Corporation (Mooney) Model M20R airplanes: repetitively inspecting the exhaust system for cracks, replacing the exhaust system if any cracks are found, and reporting to the Federal Aviation Administration (FAA) any cracks found. This action retains the repetitive inspection requirement of AD 95-07-04 until the exhaust system is modified, and requires eventual modification of the exhaust system on the affected airplanes. Several reports of exhaust system cracks on Mooney Model M20R airplanes prompted this action. The actions specified by this AD are intended to prevent an airplane engine fire that could result from exhaust system cracks.
2008-08-03: 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: To prevent electrical malfunction from causing damage to the wiring that may result in arcing or fire, accomplish Pacific Aerospace Service Bulletin PACSB/XL/008. We are issuing this AD to require actions to correct the unsafe condition on these products.
2020-17-02: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-8 and -8F series airplanes, and Model 787-8, -9, and -10 airplanes. This AD requires removing Kathon FP 1.5 biocide from the fuel tanks and engines, installing a fuel limitation placard, and revising the existing airplane flight manual (AFM) to prohibit operation of the airplane with Kathon FP 1.5 biocide in a fuel tank or engine. This AD was prompted by a report indicating that Kathon FP 1.5 biocide added to fuel and running through the engines can lead to significant engine anomalies. The FAA is issuing this AD to address the unsafe condition on these products.
2005-04-06: The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Model GV-SP series airplanes. This AD requires repetitive inspections of the avionics standard communication bus (ASCB) for any noise interference and repair of the ASCB if noise interference is found. This AD also requires revisions of the airplane flight manual (AFM) to prohibit dispatch of any flight with the integrated standby flight display (SFD) inoperative; to add procedures to facilitate recovery of the cockpit display units in the event that the cockpit displays go blank; and to add flightcrew briefings on the use of standby instruments in case the cockpit display units go blank and do not recover. This AD also requires installing an avionics software update and a hardware upgrade to the Honeywell Primus Epic system to correct a display blanking problem; installing the update will allow removal of certain AFM revisions and will end the repetitive inspections of the ASCB. This AD is promptedby a report indicating that all four cockpit flight panel displays went blank simultaneously. We are issuing this AD to prevent a software error from blanking the cockpit display units, which will result in a reduction of the flightcrew's situational awareness, and possible loss of control of the airplane. We are also issuing this AD to address noise interference in the ASCB, which can interfere with the display recovery after a blanking event and consequently extend the time that the displays remain blank. In addition, we are issuing this AD to ensure that the flightcrew is advised of the procedures necessary to address blank cockpit display units.
94-01-03 R2: This amendment revises an existing airworthiness directive (AD), applicable to Teledyne Continental Motors (TCM) (formerly Bendix) S-20, S-200, S-600, and S-1200 series magnetos, that currently requires replacing Bendix ignition coils and rotating magnets, regardless of total time in service (TIS), with improved TCM ignition coils, rotating magnets and marking magnetos to indicate compliance, except for the S-1200 series magnetos on which the AD requires replacing only the ignition coils as that series magneto already incorporates rotating magnets with the improved TCM design. This amendment removes several notes after the applicability paragraph and inserts these as paragraphs into the applicability itself and into the compliance section to clarify that these actions are mandatory. In addition, this amendment allows installation of replacement serviceable Parts Manufacturer Approval (PMA) parts in addition to TCM parts. Also, this amendment clarifies that Bendix magnetosreplaced with Slick magnetos satisfy the requirements of the AD, and that operators must perform the requirements of the AD on magnetos with Bendix magneto data plates that have been replaced with an overhaul facility's data plate. This amendment is prompted by comments that request clarification of the compliance notes and by the request to install replacement serviceable PMA parts. The actions specified by this AD are intended to prevent magneto failure and subsequent engine failure.