Recent Airworthiness Directives

The following are FAA Airworthiness Directives approved or modified in the last 60 days.

Click the AD number to view the full document in PDF format.

AD Number Effective Date Manufacturer Description Recurring
2017-21-51 E 10/12/2017 Engine Alliance To prevent failure of the fan hub, which could lead to uncontained release of the fan hub, damage to the,contd. N
2017-20-14 11/16/2017 The Boeing Company To ensure the continued structural integrity of all The Boeing Company Model 737-300, -400 & -500,contd. Y
2017-20-13 11/16/2017 Piaggio Aero Ind. To prevent structural stiffness of the flight control surface and the downgrade of its,contd. Y
2017-20-12 11/16/2017 The Boeing Company To ensure the continued structural integrity of all The Boeing Company Model 737-100, -200, -200C,contd. Y
2017-20-11 11/15/2017 Bombardier Inc. To detect and correct degradation of the structural integrity of the affected tie beam, which could result,contd N
2017-20-10 11/15/2017 Airbus SAS To prevent unstable approaches due to an unexpected thrust increase, which could result in reduced,contd. N
2017-20-09 11/13/2017 General Electric Co. To prevent failure of the fan OGV frame, engine separation, and loss of the airplane N
2017-20-08 11/06/2017 Gulfstream Aerospace To provide the flight crew with operating procedures for airplanes that have AMS 3374 or Gulfstream Material,contd. N
2017-20-07 11/06/2017 Bombardier Inc. To prevent failure of the FCA and subsequent discharge of fire extinguishing bottles and false fire indications,contd. N
2017-20-06 11/09/2017 Honeywell, Inc. To prevent failure of the LPT2 blades, failure of one or more engines, and loss of the airplane N
2017-20-05 11/06/2017 The Boeing Company To detect and correct fatigue cracking of the fuselage skin of the crown skin panel, which could result in pressure,contd Y
2017-20-04 11/15/2017 Airbus SAS To ensure proper flight crew awareness of unreliable airspeed indications N
2017-20-03 11/06/2017 Dassault Aviation To detect & correct inadequate clearances between electrical wiring and nearby structures, which could lead to,contd. N
2017-20-02 10/12/2017 Airbus To detect and correct wear on the Trimmable horizontal stabilizer actuator (THSA), possibly resulting in,contd. Y
2017-20-01 11/02/2017 Honeywell, Inc. To prevent uncontained failure of the fan disks, damage to the engine, and damage to the airplane N
2017-19-27 11/01/2017 Bombardier Inc. To prevent cracking of the spoiler PCUs that could lead to the loss of multiple flight controls and landing,contd. N
2017-19-26 10/30/2017 The Boeing Company To detect and correct cracking of the upper skin panel at the chem-milled step above the lap joint, which could,contd. Y
2017-19-25 11/01/2017 Airbus Defense and Space To detect and correct leaks in a motorized fuel valve, which could lead to failure of the fuel valve and,contd. Y
2017-19-24 11/01/2017 Airbus SAS To mitigate the risks associated with aging effects of airplane systems N
2017-19-23 11/01/2017 Airbus SAS To detect and correct wear of the THSA, which could reduce the remaining life of the THSA, possibly,contd. Y
2017-19-22 10/30/2017 British Aerospace To prevent, detect, & correct corrosion on the rudder upper hinge bracket and internal wing, areas of the,contd. N
2017-19-21 10/30/2017 Airbus Helicopters To prevent a false lubrication system (EMLUB) warning associated with the main gearbox (MGB) N
2017-19-20 10/27/2017 General Electric Co. To prevent failure of the HPC impeller N
2017-19-19 10/11/2017 Rolls-Royce plc To prevent failure of the LPC case support inboard pins, loss of core to fan case concentricity, LPC blade,contd N
2017-19-18 10/31/2017 Rolls-Royce Deutschland To prevent failure of the HPC stage 12 rotor disk, uncontained HPC stage 12 rotor disk release, damage to,contd. N
2017-19-17 10/27/2017 Dassault Aviation To detect and correct a deficiency in the wing anti-ice system ducting, which could result in reduced,contd. N
2017-19-16 10/13/2017 Rolls-Royce plc To prevent failure of the locating pins, engine separation, and loss of the airplane N
2017-19-15 10/31/2017 Technify Motors GmbH To prevent failure of the clutch, loss of engine power in flight, and reduced control of the airplane N
2017-19-14 10/24/2017 Dassault Aviation To prevent reduced structural integrity of the airplane N
2017-19-13 10/25/2017 Airbus To detect and correct fatigue cracking, damage, & corrosion in a certain structure, which could result in reduced,contd. Y
2017-19-12 10/24/2017 Airbus SAS To prevent a fuel pump from overheaing, which could result in a fuel tank explosion and consequent loss of the,contd. Y
2017-19-11 10/23/2017 Bombardier Inc. To detect & correct a dormant failure of both FCU back-up modules N
2017-19-10 10/27/2017 The Boeing Company To detect and correct cracking of the cam support assemblies of the MCD, which could result in reduced structural,contd. Y
2017-19-09 10/25/2017 Bombardier Inc. To prevent failure of the pivot pin retention bolt, which could result in a loss of directional control,contd. N
2017-19-08 10/25/2017 Airbus Defense and Space To prevent failure of the rudder control system, which could result in reduced controllability of the,contd. N
2017-19-07 10/25/2017 Airbus Defense and Space To detect & correct incorrect polarity connections, which could prevent the actuation of the discharge cartridge,contd. Y
2017-19-06 10/27/2017 Bombardier Inc. To prevent the loss of structural integrity of the affected part N
2017-19-05 C 10/31/2017 Siemens S.A.S. To prevent failure of the smoke detector, on-board uncontrolled fire, and damage to the airplane N
2017-19-04 10/19/2017 Dassault Aviation To prevent reduced structural integrity of the airplane N
2017-19-03 10/19/2017 Dassault Aviation To prevent reduced structural integrity of the airplane N
2017-19-02 10/19/2017 The Boeing Company To detect and correct cracking of the cam support assemblies of the MCD Y
2017-18-21 C 09/28/2017 Airbus SAS To prevent possible collapse of the MLG during takeoff and landing N
2017-18-20 11/09/2017 The Boeing Company To detect and correct cracking of the cam spport assemblies of the MCD and consequent rapid decompression of,contd Y
2017-18-19 10/19/2017 Airbus SAS To detect and correct cracking of trellis boom drainage holes, the holes in the stringers bottom, and,contd. Y
2017-18-18 09/26/2017 Airbus To prevent a loss of communication between some avionics systems and the avionics network, which,contd. Y
2017-18-17 10/19/2017 Airbus SAS To prevent cracking of the center section of the fuselage, which could result in a ruptured frame,contd. N
2017-18-16 10/16/2017 The Boeing Company To prevent takeoff with a stabilizer position set outside acceptable limits for a mis-trimmed takeoff,contd. N
2017-18-15 10/19/2017 Airbus SAS To prevent reduced structural integrity of these airplanes due to the failure of certain structural components N
2017-18-14 10/13/2017 Rolls-Royce Corporation To prevent failure of 3rd-stage and 4th-stage turbine wheel blades, damage to the engine,contd. Y
2017-18-13 09/25/2017 Agusta S.p.A. To detect a crack in a blade and prevent failure of a blade and subsequent loss of control of the helicopter Y
2017-18-12 10/16/2017 BE Aerospace To inspect and correct Protective Breathing Equipment (PBE) from catching fire upon activation N
2017-18-11 10/16/2017 Textron Aviation Inc. To prevent cracking of the EDP that could cause leakage of hydraulic fluid and possibly lead to loss of normal,contd. N
2017-18-10 10/11/2017 Diamond Aircraft To prevent failure of the flap bell crank, which could result in reduced control Y
2017-18-09 10/10/2017 Airbus Defense and Space To prevent excessive play between bushings and their respective fitting housings, which could lead to,contd. Y
2017-18-08 10/05/2017 Dassault Aviation To detect and correct manufacturing defects in the anti-ice piccolo tubes in the wing outboard slats Y
2017-18-07 10/05/2017 Dassault Aviation To prevent interference between the rivet shank and the flight deck mounted overhead panel when the,contd. N
2017-18-06 10/05/2017 The Boeing Company To prevent flammable fluid from leaking onto the engine exhaust nozzle, which could result in a fire N
2017-18-05 10/05/2017 The Boeing Company To detect and correct cracking in the fuse pin of the wing landing gear beam end fitting N
2017-17-19 10/04/2017 The Boeing Company To detect and correct cracking at the cant station 1463 bulkhead and cant station 1254 bulkhead, which could,contd. N
2017-17-18 10/06/2017 General Electric Co. To prevent failure of the fan blade, uncontained blade release, damage to the engine, and damage to the airplane Y
2017-17-17 10/11/2017 Viking-Air Ltd. To prevent failure of the screw cap or end cap, which could result in impact damage to various components,contd. Y
2017-17-16 10/02/2017 The Boeing Company To detect and correct such cracking, which could adversely affect the structural integrity,contd. Y
2017-17-15 10/02/2017 Bombardier Inc. To prevent failure of the landing gear AES & consequent landing with some or all of the landing gear not extended N
2017-17-14 10/02/2017 Saab AB, Aeronautics To replace circuit breakers of unsuitable strength, which could fail to protect the system fron overcurrent N
2017-17-13 10/02/2017 Bombardier Inc. To prevent electrical arcing from power cables, which could cause a fire in the aft equipment bay N
2017-17-12 10/02/2017 Airbus SAS To prevent multi-site damage in the bottom skin at the MLG reinforcing plate, which could result in reduced,contd. N
2017-17-11 09/29/2017 Dassault Aviation To prevent a reduction in available engine thrust during certain operational takeoff conditions, which could,contd. N
2017-17-10 09/29/2017 ATR To detect and correct cracked rear hinge pins, which could lead to MLG structural failure, possibly,contd. N
2017-17-09 09/29/2017 The Boeing Company To prevent an ungrounded path that could result in an increased risk of ignition and subsequent fuel tank,contd N
2017-17-08 10/02/2017 Airbus To detect & replace structural parts made of an incorrect aluminum alloy N
2017-17-07 09/12/2017 Rolls-Royce plc To prevent failure of the IP turbine stage 2 locking plates, uncontained release of the IP turvine stage,contd. Y
2017-17-06 09/25/2017 The Boeing Company To detect and correct cracking which could grow in size and result in a severed frame Y
2017-17-05 09/25/2017 Airbus SAS To detect and correct fatigue cracking of the FR 47 forward fitting upper radius on the left-hand and right-hand,contd Y
2017-17-04 09/25/2017 The Boeing Company To detect and correct cracks in the upper aft skin of the wings, which could result in the inability of a,contd. N
2017-17-03 09/25/2017 MD Helicopters Inc. To prevent failure of the upper hub and subsequent loss of control of the helicopter Y
2017-17-02 09/25/2017 Bombardier Inc. To detect and correct chafing of the AC feeder cable N
2017-17-01 09/25/2017 Airbus Helicopters To detect and correct corrosion or a crack in an attachment pin Y
2017-16-13 09/25/2017 Bombardier Inc. To prevent improper oxygen flow functionality to the passenger oxygen masks in the event of an emergency N
2017-16-12 10/02/2017 Airbus SAS To prevent a pitch down order due to abnormal activation of the Alpha Prot. N
2017-16-10 09/25/2017 The Boeing Company To detect and correct cracks in the underwing longerons, which could result in fuel leakage into the,contd. Y
2017-16-09 09/25/2017 Dassault Aviation To detect and correct unprotected brake hoses, which could lead to loss of braking during landing or a,contd. N
2017-16-08 10/11/2017 Embraer To detect and correct fatigue cracking of structural components and to prevent failure of certain,contd. N
2017-16-07 10/10/2017 Airbus To detect and correct fatigue cracks in the bulk cargo door frames caused by TSA/CAA surface treatment in,contd. Y
2017-16-01 10/24/2017 Ameri-King To detect and correct nonfunctioning ELTs, which, if not corrected, could delay or impede the rescue of,contd. Y

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