Results
94-24-08: This amendment adopts a new airworthiness directive (AD), applicable to Raytheon Corporate Jets Model BAe 125-1000A and Hawker 1000 series airplanes, that requires installation of additional vent areas in the central fuselage. This amendment is prompted by an analysis which indicated that an explosive decompression could not be vented adequately with the currently installed floor venting system on these airplanes. The actions specified by this AD are intended to prevent collapse of the floor and subsequent injury to passengers and crew in the event of an explosive decompression of the fuselage.
2008-04-15: 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: Defective inlet self-seal valves have been identified. Detachment of a seal inside the valve could result in partial or complete blockage of the burner supply. On a hopper balloon this failure would result in an uncontrolled descent. In some circumstances this could result in serious injury. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
2001-14-08: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10 series airplanes, Model MD-10 series airplanes, and Model MD-11 series airplanes, that requires repetitive inspections of the number 1 and 2 electric motors of the auxiliary hydraulic pump for electrical resistance, continuity, mechanical rotation, and associated wiring resistance/voltage; and corrective actions, if necessary. This amendment is necessary to prevent various failures of electric motors 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.
2020-09-10: The FAA is superseding Airworthiness Directive (AD) 2018-25- 04, which applied to certain C Series Aircraft Limited Partnership (CSALP) Model BD-500-1A10 and BD-500-1A11 airplanes. AD 2018-25-04 required repetitive inspections for any dislodged blow-out panel in the forward and aft cargo compartments, reporting of the inspection findings, and reinstallation if necessary. This new AD continues to require repetitive inspections, with a revised inspection interval, for affected panels that have not been replaced. This new AD also requires the replacement of affected blow-out panels with redesigned panels, which terminates the inspection requirement. This new AD also revises the applicability by removing certain airplanes. This AD was prompted by reports of dislodged cargo compartment blow-out panels. The FAA is issuing this AD to address the unsafe condition on these products.
2008-05-06: We are adopting a new airworthiness directive (AD) for certain Boeing Model 737-100, -200, -300, -400, and -500 series airplanes. This AD requires repetitive inspections for fatigue cracking in the longitudinal floor beam web, upper chord, and lower chord located at certain body stations, and repair if necessary. This AD results from several reports of cracks in the center wing box longitudinal floor beams, upper chord, and lower chord. We are issuing this AD to detect and correct fatigue cracking of the upper and lower chords and web of the longitudinal floor beams, which could result in rapid loss of cabin pressure.
2012-21-20: We are adopting a new airworthiness directive (AD) for certain Airbus Model A330-200 freighter series airplanes, Model A330-200 and - 300 series airplanes, and Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted by reports of the ram air turbine (RAT) not deploying when tested. This AD requires identification of the supplier, part number, and serial number of the installed RAT actuator, and re-identification of the actuator and RAT, or replacement of the RAT actuator with a serviceable unit and re-identification of the RAT, if necessary. We are issuing this AD to prevent non-deployment of the RAT, which if occurred following a total engine flame-out, or during a total loss of normal electrical power generation, could result in reduced control of the airplane.
2001-23-11: This amendment supersedes an airworthiness directive (AD) for Eurocopter France Model EC 155B helicopters that currently requires, before each flight, visually checking each sliding door to ensure that each door roller is inside its rail. This amendment requires modifying the cabin sliding door rails and replacing the roller fitting. This amendment is prompted by the development of a modification that mechanically restrains the roller within its rail. The actions specified by this AD are intended to prevent in-flight loss of a cabin sliding door, impact with the main rotor or fenestron, and subsequent loss of control of the helicopter.
2018-17-22: We are adopting a new airworthiness directive (AD) for certain Airbus SAS Model A319-115 and -132 airplanes, and Model A320-214, -216, -232, and -233 airplanes. This AD was prompted by a report indicating that certain modified airplanes do not have electrical ground wires on the fuel level sensing control unit (FLSCU), which adversely affects the fuel gravity feeding operation. This AD requires modification of the FLSCU wiring. We are issuing this AD to address the unsafe condition on these products.
2008-05-11: We are adopting a new airworthiness directive (AD) to supersede AD 76-23-03 R1, which applies to certain Alexandria Aircraft, LLC Models 17-30, 17-31, 17-30A, and 17-31A airplanes. AD 76-23-03 R1 currently requires you to inspect the muffler and tailpipe assemblies for cracks and inspect the exhaust assembly for freedom of movement at the ball joints. Since we issued AD 76-23-03-R1, we have received additional reports of in-flight exhaust system failures. Consequently, this AD reduces the exhaust system inspection interval; requires a more detailed inspection of the muffler; and requires replacement, reconditioning, or repair of the exhaust system if cracks or defects are found. This AD also requires P-lead rerouting. We are issuing this AD to detect and correct cracks in the exhaust system, which could result in heat damage to magneto electrical wiring and smoke in the cockpit. This failure could lead to loss of engine power and/or a fire in the engine compartment.
94-24-05: This amendment adopts a new airworthiness directive (AD), applicable to certain Short Brothers Model SD3-60 series airplanes, that requires installation of a certain time delay relay and associated wiring into a circuit of the rudder gust lock. This amendment is prompted by reports of inadvertent engagements of the rudder gust lock on in-service Model SD3-60 series airplanes. The actions specified by this AD are intended to prevent premature locking of the rudder gust lock, which could result in reduced controllability of the airplane in flight and during landing roll.
2004-26-12: The FAA is adopting a new airworthiness directive (AD) for all EMBRAER Model ERJ 170 series airplanes. This AD requires revising the airplane flight manual (AFM) to include certain operational instructions and prohibit dispatch of any flight with the integrated electronic standby system (IESS) inoperative, even though it is allowed by the current version of the Master Minimum Equipment List; and performing a test to determine proper operation of the network interface card (NIC) communications and repairing if necessary. This AD also requires installing a certain software version of the PRIMUS EPIC system, after which the AFM revision must be removed from the AFM. This AD is prompted by reports of temporary loss of all cockpit display units (DU). We are issuing this AD to prevent temporary or possible sustained loss of all modular avionics units (MAU), which triggers a cascade of failures in systems dependent on MAUs functionalities. Such failures could reduce the flightcrew'ssituational awareness and increase workload and consequently reduce the ability of the flightcrew to maintain the safe flight and landing of the airplane.
2001-23-06: This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATA--Groupe Aerospatiale (Socata) Model TBM 700 airplanes. This AD requires you to inspect for defective Amendment A fuel tank air vent valves and replace with parts of improved design. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for France. The actions specified by this AD are intended to prevent in-flight damage to the wing skins caused by abnormal venting conditions of the wing fuel tank, which could result in severe handling problems or reduced structural capability. Continued operation with such structural deformation or handling problems could result in loss of control of the airplane.
94-23-01: This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10 series airplanes, that currently requires inspection of the wing rear spar lower cap aft tang fastener and the wing trailing edge access door sill to detect fatigue cracking, and repair, if necessary. This amendment requires installation of a crack preventative modification of the wing rear spar lower cap, and follow-on inspections. This amendment is prompted by reports of additional cracking found in the current inspection area. The actions specified by this AD are intended to prevent propagation of cracks in the subject area, which could compromise the structural integrity of the airplane.
2008-05-08: 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: Some occurrences have been reported where life rafts were difficult to remove from inside divan compartment. Investigations revealed that: --Life raft was incorrectly stowed, with deployment straps inboard; --Life raft had not been repacked to specified dimensions * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products.
2020-08-12: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-8 and 747-8F series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the skin lap joints at certain stringers are subject to widespread fatigue damage (WFD). This AD requires modifying the left and right side lap joints of the fuselage skin, repetitive post-modification inspections for cracking, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
2018-17-20: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 727 airplanes. This AD was prompted by significant changes made to the airworthiness limitations (AWLs) related to fuel tank ignition prevention. This AD requires revising the maintenance or inspection program, as applicable, to incorporate the latest revision of the AWLs. We are issuing this AD to address the unsafe condition on these products. \n\n((Page 44205))
94-22-11: This amendment adopts a new airworthiness directive (AD), applicable to certain British Aerospace Model ATP airplanes, that requires modification of the power supply for the communications system. This amendment is prompted by reports of loss of power to the communications system due to an electrical fault in the ground crew jack box or the handset of the public address (PA) system. The actions specified by this AD are intended to prevent the inability of the flight crew to communicate with passengers via the PA system and with air traffic control due to loss of power to the communication system, which may lead to unsafe operation of the airplane.
2008-05-09: The FAA adopts a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) 172, 182, and 206 series airplanes. This AD requires you to remove the crew seats, modify the seat base/ back attach brackets, and reinstall the seats of the affected airplanes. This AD results from reports of the seat base/back attach bracket failing where it is welded to the seat base. We are issuing this AD to prevent failure of the seat base/back attach brackets, which could result in the seats collapsing backwards during flight with consequent loss of control.
2001-23-09: This amendment supersedes two existing airworthiness directives (ADs), applicable to Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Co.) TFE731-2, -3, and -4 series turbofan engines. Those AD's currently require removing certain fan rotor discs from service in accordance with a drawdown schedule, and establishing new fan rotor disc life limits. This amendment requires stricter life limits for certain fan rotor discs. This amendment is prompted by the availability of an improved fan rotor disc and by a reduction in the probability of fan rotor disc failure by terminating the life of the older, high-stressed, fan rotor disc. The actions specified in this AD are intended to prevent failure of the fan rotor disc due to fatigue cracking in the dovetail slots, which could result in in-flight engine shutdown, uncontained engine failure, and damage to the airplane.
2020-09-02: The FAA is superseding Airworthiness Directive (AD) 2017-16-04 for certain Anjou Aeronautique (formerly Romtex Anjou Aeronautique) Model 358 torso restraint systems (restraint systems). AD 2017-16-04 required inspection of the restraint system, placarding if it is found to be inoperative, and replacement of the affected restraint system with a part eligible for installation. This AD requires the removal from service of this expanded population of affected restraint systems and modifies the compliance schedule for their removal. This AD was prompted by reports to the European Union Aviation Safety Agency (EASA), since the publication of AD 2017-16-04, of additional restraint system buckle knobs breaking on a batch of parts outside of the population identified in AD 2017-16-04. The FAA is issuing this AD to address the unsafe condition on these products.
94-22-09: This amendment supersedes an existing airworthiness directive (AD), applicable to Bell Helicopter Textron, Inc. restricted category military Model UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and TH-1L helicopters, that currently requires an inspection before the first flight of each day of certain tail rotor drive shafts and the tail rotor drive shaft hanger bearings (bearings) for grease leakage, security, overheat conditions, binding, or roughness until the bearings are replaced. This amendment requires the same inspection of the bearings, but also requires replacement of the affected bearings within the next 100 hours time-in-service and extends the requirements of this AD to the Model UH-1P and TH-1F helicopters that were recently type certificated. This amendment is prompted by an accident involving a bearing failure, and by the certification of two additional affected helicopter models. The actions specified by this AD are intended to prevent failure of the bearing, failure of the tail rotor drive shaft, and subsequent loss of control of the helicopter.
2008-05-07: 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: One occurrence has been reported where a maintenance operation had been performed on the elevator controls, and bellcrank * * * located in the Right Hand MLG (main landing gear) wheel well was mistakenly installed upside down. This discrepancy and improper installation caused an unexpected 5[deg] positioning offset of the elevator control surfaces leading to a hazardous condition on landing, [involving] the pilot being unable to flare the aircraft as needed * * * [which resulted in a hard landing]. The unsafe condition is reduced controllability of the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.
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.