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
2017-07-02 04/11/2017 Sikorsky Aircraft To prevent failure of a drive shaft which could result in loss of rotor drive and subsequent loss of control Y
2017-06-14 05/02/2017 The Boeing Company To detect and correct cracks in horizontal stabilizer lower skins, resulting in reduced local stiffness of the,contd. Y
2017-06-13 05/02/2017 Textron Aviation Inc. To prevent disbonding of the horizontal and vertical stiffeners on the aft canted bulkhead Y
2017-06-12 05/02/2017 Airbus To detect and correct cracking at certain fastener locations in the longeron area below the emergency exit cut-outs,contd. N
2017-06-10 05/01/2017 Bombardier Inc. To prevent overheating in the wires N
2017-06-09 05/01/2017 The Boeing Company To prevent propagation of a fire in the lower lobe cheek area outboard of a closer or video control station N
2017-06-05 05/01/2017 The Boeing Company To detect and correct fatigue cracking in the wing lower skin, which could adversely affect the structural,contd. Y
2017-06-04 05/01/2017 Airbus To detect and correct cracks in the skin lap joint below stringer (STR) 28 at frame (FR) 72 to FR 76 Y
2017-06-02 04/26/2017 Fokker Aircraft B.V. To prevent certain engine thrust settings during ground operation, which can cause the fan blades to flutter,contd. N
2017-06-01 04/05/2017 The Boeing Company To detect and correct cracking on the aft lower lobe fuselage skins, which could result in rapid decompression of,contd. Y
2017-05-51 E 03/03/2017 Bell Helicopter To prevent the motor from detaching, causing failure of the primary flight controls and subsequent loss of,contd. Y
2017-05-12 04/17/2017 Airbus To detect and replace structural parts made of aluminum alloy with inadequate heat treatment N
2017-05-11 04/17/2017 Bombardier Inc. To prevent hydraulic fluid leakage in the event of a retract port flexible hose failure; this condition,contd. Y
2017-05-10 04/17/2017 Airbus To prevent reduced structural integrity and reduced control of these airplanes due to the failure of system components N
2017-05-09 04/13/2017 CFM International To prevent failure of the RDS, which could lead to failure of one or more engines, loss of thrust control, & damage,contd N
2017-05-08 04/13/2017 Turbomeca Engine Corp. To prevent failure of the HMU, failure of the engine, IFSD, and loss of the helicopter N
2017-05-07 04/07/2017 The Boeing Company To prevent a breach in the engine firewall due to a failed upper bifurcation forward fire seal N
2017-05-06 04/07/2017 The Boeing Company To detect and correct cracking of the frame inner chords and webs common to the floor beam joint and at frames,contd. Y
2017-05-05 04/13/2017 Pratt & Whitney To prevent failure of the HPT 1st stage hub, uncontained hub release, damage to the engine, and damage to the airplane N
2017-05-04 03/17/2017 Bell Helicopter To prevent failure of the TT strap and subsequent loss of control of the helicopter Y
2017-05-03 03/17/2017 Airbus Helicopters DE To prevent loss of the shell in-flight, which could strike the tailboom or tail rotor, resulting in loss of,contd. Y
2017-05-03 03/17/2017 Airbus Helicopters To prevent loss of the shell in-flight, which could strike the tailboom or tail rotor, resulting in loss of,contd. Y
2017-05-02 04/07/2017 Airbus To detect & replace structural parts made of incorrect aluminum alloy N
2017-05-01 04/07/2017 Airbus To prevent reduced structural integrity of these airplanes due to the failure of certain structural components N
2017-04-51 03/30/2017 Safran Helicopter Engines To prevent an engine compartment fire, in-flight shutdown, and damage to the helicopter Y
2017-04-15 04/04/2017 Learjet Corp. To prevent severe weakening of the aileron cable, and consequent reduced controllability of the,contd. N
2017-04-14 03/09/2017 Textron Aviation Inc. To detect & correct inadequate separation and consequent chafing, which could result in electrical arcing and a,contd. N
2017-04-13 04/03/2017 The Boeing Company To detect and correct heat damage to the vapor seals between the engine strut and aft fairing Y
2017-04-12 03/29/2017 Embraer To detect and correct water accumulating and freezing in the pitot number 1 and pitot number 2 total pressure,contd. N
2017-04-11 03/29/2017 The Boeing Company To prevent stress corrosion cracking of the external surfaces of the MLG, which could result in a,contd. N
2017-04-10 04/03/2017 Airbus To detect and correct non-conforming retainers of the aft engine mount N
2017-04-09 03/29/2017 Airbus To detect and correct degraded structural integrity of the engine nose cowl, which in the case of forward,contd. Y
2017-04-08 04/03/2017 The Boeing Company To detect and correct fatigue cracking of the upper-frame- to-side-frame splice of the fuselage, which could,contd. Y
2017-04-07 03/28/2017 The Boeing Company To prevent an uncommanded extenstion of multiple spoiler panels on one wing, in the event of a hydraulic,contd. N
2017-04-06 04/07/2017 United Instruments To prevent display of misleading altitude data, which could result in inadvertent flight into,contd. N
2017-04-05 03/28/2017 Airbus To detect and correct fatigue cracking, damage, & corrosion in certain structure; such fatigue cracking, damage,contd N
2017-04-04 03/29/2017 BAE Systems (Operations) To detect and correct bulging, surface anomalies, & cracking that could propagate towards the forward discharge,contd. Y
2017-04-03 04/07/2017 Pilatus Aircraft Ltd. To prevent disconnection of the aileron counterweight from the aileron, which could result in loss of control Y
2017-04-02 03/28/2017 Bombardier Inc. To prevent incorrect installation of the brake hydraulic lines, which could cause the brakes and,contd. N
2017-04-01 03/28/2017 Gulfstream Aerospace To prevent undetected actuation of the main ram LVDT N
2017-03-03 03/17/2017 Rolls-Royce Limited To prevent engine fuel leaks, which could result in engine damage and damage to the airplane Y
2017-03-02 03/22/2017 Rolls-Royce Limited To prevent LP compressor blade airfoil separations, damge to the engine, and damage to the airplane Y
2017-03-01 03/31/2017 Airbus Helicopters DE To prevent the affected control lever to shift and contact the helicopter structure, resulting in,contd. Y
2017-02-51 03/20/2017 Sikorsky Aircraft To detect a binding TRPCS bearing, prevent loss of TR control, and possible loss of control of the helicopter Y
2017-02-12 03/28/2017 The Boeing Company To detect and correct cracking of the front spar chord lugs of the horizontal stabilizer Y
2017-02-11 03/17/2017 Schleicher, Alexander To correct any excess slack in the rudder hand control system, which could result in a short-term blockage of,contd Y
2017-02-10 03/17/2017 The Boeing Company To detect and correct fatigue cracking in the fuselage skin around the eight fasteners securing the STA 540,contd. Y
2017-02-09 03/17/2017 The Boeing Company To detect and correct cracks and corrosion on the crown skin inner surface Y
2017-02-08 03/17/2017 Airbus To detect & correct corrosion and cracking on the lower wing root joint, which could reduce the structural,contd. Y
2017-02-07 03/17/2017 Airbus Helicopters DE To prevent failure of a hydraulic module plate assembly attachment point Y
2017-02-06 02/22/2017 Piper Aircraft, Inc. To detect and correct rubbing/ chafing of wiring with other wires, adjacent structure, and/or flammable fuel,contd. Y
2017-02-05 03/14/2017 The Boeing Company To detect and correct cracking of the fuselage skin assembly and the bear strap at the corners of the aft entry,contd Y
2017-02-04 03/14/2017 The Boeing Company To detect and correct cracking of the strut side skin and spring beam support fitting; such cracking could,contd. Y
2017-02-03 03/16/2017 The Boeing Company To prevent an uncontrolled water leak from a defective potable water system coupling, which could cause the,contd. N
2017-02-02 03/23/2017 The Boeing Company To detect and correct fatigue cracking of the fuselage skin panels, which could cause rapid decompression of,contd. Y
2017-02-01 03/14/2017 Rolls-Royce Limited To prevent HPT blade failure, loss of engine thrust control, and reduced control of the airplane Y
2017-01-09 C 02/21/2017 The Boeing Company To prevent malfunctions of the flight deck display units, which could affect the ability of the flight crew to,contd. N
2017-01-03 03/14/2017 The Boeing Company To detect and correct fatigue cracking of certain PSEs, which could adversely affect the structural,contd. Y
2016-26-08 C 02/09/2017 Pilatus Aircraft Ltd. To incorporate new revisions into the Limitations section, Chapter 4, of the FAA-approved maintenance program,contd. N
2016-25-25 C 02/07/2017 BAE Systems (Operations) To detect and correct cracking in the wing rear spar, which could propagate to a critical length, possibly,contd. Y

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