Results
2023-15-06: The FAA is adopting a new airworthiness directive (AD) for all Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. This AD was prompted by reports of an electrical burning smell in the cabin without the presence of smoke. This AD requires revising the Limitations Section of the existing airplane flight manual (AFM) for your airplane, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.
2008-04-13: 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: [T]he FAA has published a set of new rules related to the fuel tank safety, including the Special Federal Aviation Regulation 88 (SFAR 88). The JAA (Joint Aviation Authority) has issued an Interim Policy JAA INT/POL 25/12, to recommend the application of a similar requirement to the National Aviation Authorities (NAA) [of Europe]. * * * * * * * * ATR carried out a safety review on the fuel tank systems and zones adjacent to the fuel tanks on all ATR models * * *. * * * * * The unsafe condition is the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.
2008-04-03: We are adopting a new airworthiness directive (AD) for Eurocopter Model AS-365N2 and N3, SA-365C, C1 and C2, and SA-365N and N1 helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The European Aviation Safety Agency (EASA), the Technical Agent for France, with which we have a bilateral agreement, states in the MCAI: This Emergency Airworthiness Directive is issued following several reports of tightening torque loss detected on the main rotor hub (MRH)-to-main rotor mast bolted attachment. These findings were made on EUROCOPTER-assembled attachments with less than 300 operating hours. A loss of tightening torque on the MRH-to-main rotor mast attachment bolt could lead to loss of the main rotor head. This AD requires actions that are intended to address the unsafe condition caused by a loss of tightening torque on the MRH attachment bolts.
2023-16-01: The FAA is superseding Airworthiness Directive (AD) 2023-12- 20, which applied to certain Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes. AD 2023-12-20 required replacing certain oxygen system hoses and prohibited installing affected oxygen hoses. Since the FAA issued AD 2023-12-20, the FAA has learned of an error in a required compliance time. This AD retains the requirements of AD 2023-12-20, with a revised compliance time for the replacement. The FAA is issuing this AD to address the unsafe condition on these products.
2008-04-05: We are adopting a new airworthiness directive (AD) for Eurocopter Deutschland (Eurocopter) Model EC135 helicopters. 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 European Aviation Safety Agency (EASA), the Technical Agent for the Federal Republic of Germany, with which we have a bilateral agreement, states in the MCAI: During a flight a burning odour [sic] could be smelled in the cabin. Its reason was a short circuit in the LH cable channel, which was caused by a damaged wire harness. The wire harness was damaged by the side channel cover's attachment hardware. The rubbing and chafing of the wiring harnesses in the tunnels underneath the channel cover, against the screws and rivets attaching the channel covers, could lead to a short circuit of the wiring harness. This AD requires actions that are intended to address this unsafe condition by preventing a short circuit resulting from a damaged wiring harness, which could subsequently lead to a fire in the helicopter.
2023-14-10: The FAA is superseding Airworthiness Directive (AD) 2019-21- 06, which applied to certain Ipeco Holdings Limited (Ipeco) pilot and co-pilot seats. AD 2019-21-06 required modification and re- identification of the affected seats, initial and repetitive inspections of the affected track lock springs and, depending on the findings, replacement of the track lock springs with a part eligible for installation. Since the FAA issued AD 2019-21-06, the FAA determined the need for a mandatory terminating action to the track lock spring inspections. This AD is prompted by reports of track lock spring failures occurring on affected seats. This AD retains the requirements of AD 2019-21-06. This AD also adds a mandatory terminating action for the initial and repetitive inspections of the affected track lock springs. The FAA is issuing this AD to address the unsafe condition on these products.
2008-01-02: 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: During a heavy maintenance check on a DHC-4 aircraft, an operator discovered that both of the upper engine mount bracket assemblies on one aircraft were cracked. Further inspection of the operator's fleet confirmed that engine mount bracket assemblies on five out of ten aircraft were also cracked. * * * * * Failure of the upper engine mount bracket assembly could result in separation of the engine from the airplane. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
2008-04-01: 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: * * * accidents which occurred to in-service aircraft caused by the violent opening of the passenger door related to excessive residual pressure in the cabin. We are issuing this AD to require actions to correct the unsafe condition on these products.
2023-14-04: The FAA is superseding Airworthiness Directive (AD) 2020-09-11 and AD 2022-21-12, which applied to all Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. AD 2020-09-11 and AD 2022-21-12 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2022-21-12, new or more restrictive tasks and limitations have been introduced. This AD continues to require the actions of AD 2022-21-12, and also 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.
2008-03-20: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 737-300, -400, and -500 series airplanes. This AD requires, among other actions, modifying the door-mounted escape system of the forward right side door slide compartment. This AD results from reports indicating that the forward right escape slide inflated 90 degrees out of alignment after deployment from the forward right side slide compartment. We are issuing this AD to prevent the escape slide from being unusable during an emergency evacuation and consequent injury to passengers or crewmembers.
2008-03-15: We are superseding an existing 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: A non-respect of the pilot door adjustment procedure could have damaged the stop fitting and could result in a consequent depressurization of the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective March 11, 2008. On March 11, 2008, the Director of the Federal Register approved the incorporation by reference of EADS SOCATA TBM Aircraft Mandatory Service Bulletin SB 70-131, Amendment 1, dated June 2007, listed in this AD. As of March 23, 2007 (72 FR 7559, February 16, 2007), the Director of the Federal Register approved the incorporation by reference of EADS SOCATA TBM Aircraft Mandatory Service Bulletin SB 70-131, dated July 2005, listed in this AD.
2023-11-11: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-8 and 747-8F series airplanes. This AD was prompted by reports of cracks in stringers, common to the end fittings, forward and aft of the pressure bulkhead at station (STA) 2360 at multiple stringer locations. This AD requires repetitive inspections of stringer sidewalls and certain stringer assemblies, common to the end fittings, forward and aft of the pressure bulkhead at STA 2360 for any crack, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
2022-12-09: The FAA is superseding Airworthiness Directive (AD) 2017-15-06 for all British Aerospace Regional Aircraft Model HP.137 Jetstream Mk.1, Jetstream Series 200 and 3101, and Jetstream Model 3201 airplanes. AD 2017-15-06 required repetitively inspecting the main landing gear (MLG) for cracks and, if cracks were found, replacing the MLG with an airworthy part. Since the FAA issued AD 2017-15-06, the Civil Aviation Authority (CAA) of the United Kingdom (UK) superseded the mandatory continuing airworthiness information (MCAI) issued by the European Aviation Safety Agency (EASA) to correct an unsafe condition on these products. This AD retains the initial inspection and the calculation of hours time-in-service to flight cycle actions required by AD 2017-15-06, but decreases the repetitive inspection interval time from 1,200 flight cycles to 900 flight cycles. The FAA is issuing this AD to address the unsafe condition on these products.
2008-03-12: The FAA is superseding an existing airworthiness directive (AD), which applies to certain McDonnell Douglas airplanes. The existing AD currently requires an initial general visual or dye penetrant inspection, repetitive dye penetrant inspections, and replacement, as necessary, of the rudder pedal bracket. The existing AD also currently requires, for certain airplanes, replacing the rudder pedal bracket assemblies with new, improved parts, which would terminate the repetitive inspections. For certain airplanes, this new AD requires initial inspection at a reduced threshold, removes an inspection option, and lengthens the repetitive inspection intervals. This AD results from reports of failures of the captain's rudder pedal brackets before reaching the initial inspection threshold identified in the existing AD. We are issuing this AD to prevent failure of the rudder pedal bracket assembly, which could result in the loss of rudder and braking control at either the captain's or first officer's position.
2023-13-15: The FAA is superseding Airworthiness Directive (AD) 2023-03- 06, which applied to all Bombardier, Inc., Model BD-700-1A10 and BD- 700-1A11 airplanes. AD 2023-03-06 required revising the existing airplane flight manual (AFM) to incorporate limitations to mitigate identified hazards when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2023-03-06, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting dispatch under a certain master minimum equipment list (MMEL) item. The FAA is issuing this AD to address the unsafe condition on these products.
2008-03-07: We are adopting a new airworthiness directive (AD) for Eurocopter Model AS 332 L2 helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The European Aviation Safety Agency (EASA), the Technical Agent of France, with which we have a bilateral agreement, states in the MCAI: A borescope inspection during scheduled maintenance revealed wear on the internal skin of a Life Raft Inflation Cylinder, P/N 41918001, that had been installed on a Eurocopter AS 332 L2 helicopter. The plunger tube end is fitted with a metal end-fitting that presses against the internal surface of the cylinder due to its installation horizontally aboard the aircraft. Vibrations generated by helicopter operation are therefore causing such wear, which may result in a drop of internal pressure of the cylinder. This internal damage, if not corrected, could lead to functional failure of the cylinder, making the life raft inflation no longer possible. This AD requires actions that are intended to address the failure of a life raft to inflate during an emergency landing on water (ditching), which could result in loss of the crew and passengers.
2023-12-26: The FAA is superseding Airworthiness Directive (AD) 2021-24- 04, which applied to certain Bell Helicopter Textron Canada Limited (type certificate previously held by Bell Helicopter Textron Canada Limited) Model 505 helicopters. AD 2021-24-04 required revising the existing Rotorcraft Flight Manual (RFM) for your helicopter. Since the FAA issued AD 2021-24-04, Bell Textron Canada Limited revised the RFM to incorporate more restrictive operating limitations. This AD is prompted by the determination that the existing altitude limitations were not valid for certain fuel types and that revising the existing RFM for your helicopter to align with the limitations of the Safran Helicopter Engines, S.A. Model ARRIUS 2R engine is necessary. This AD requires revising the existing RFM for your helicopter, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2007-26-51: This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2007-26-51, which was sent previously to all known U.S. owners and operators of Eurocopter Deutschland GmbH (Eurocopter) Model EC135 helicopters by individual letters. This AD requires, within 5 hours time-in-service (TIS), inspecting the tail rotor control rod (control rod) and adjoining ball pivot and replacing any unairworthy parts before further flight. This amendment is prompted by a report of a fatal accident involving the failure of a control rod. The actions specified by this AD are intended to prevent failure of a control rod and subsequent loss of control of the helicopter.
2023-12-06: The FAA is superseding Airworthiness Directive (AD) 2020-07- 13, which applied to certain Bombardier, Inc., Model BD-100-1A10 airplanes. AD 2020-07-13 required revising the existing airplane flight manual (AFM) to provide the flightcrew with new warnings for ''Autoflight'' and ''Engine Failure in Climb During ALTS CAP.'' This AD requires revising the existing AFM to provide the flightcrew with new warnings for ''Autoflight'' and ''Engine Failure in Climb During (V) ALTS CAP or (V) ALTV CAP.'' This AD was prompted by a revision to the procedures to ensure that all applicable altitude capture modes utilized and annunciated in the affected fleet are included and to more clearly denote these altitude capture modes. The FAA is issuing this AD to address the unsafe condition on these products.
2008-02-19: The FAA is adopting a new airworthiness directive (AD) for Honeywell International Inc. (Honeywell) TFE731-2C, -3B, -3BR, -3C, - 3CR, -3D, -3DR, -4R, -5AR, -5BR, -5R, -20R, -20AR, -20BR, -40, -40AR, - 40R, and -60 series turbofan engines. This AD requires removal from service of certain high pressure (HP) turbine rotor assemblies with part numbers (P/Ns) 3075772-1 and 3060841-1 using a drawdown schedule, and returning them to Honeywell for curvic root radius inspection. This AD results from the manufacturer's report that some HP turbine rotor discs received improperly machined radii in the root of the forward and aft curvic teeth during manufacture. We are issuing this AD to prevent uncontained failure of the HP turbine rotor assembly, which could result in damage to the airplane.
2023-12-11: The FAA is superseding Airworthiness Directive (AD) 2022-03- 20, which applied to all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. AD 2022-03-20 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate limitations prohibiting the use of certain minimum equipment list (MEL) items, and to incorporate operating procedures for calculating takeoff and landing distances, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-03-20, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band base stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7- 3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting the use of certain MEL items, and would retain the operating procedures from AD 2022-03-20 for calculating takeoff and landing distances, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
2008-02-10: We are adopting a new airworthiness directive (AD) for Eurocopter France Model AS 355 F2 and AS 355 N helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The European Aviation Safety Agency, the Technical Agent for France, with which we have a bilateral agreement, states in the MCAI: This emergency Airworthiness Directive (AD) is issued following a report of yaw control restricted travel in operation following the replacement of the load compensator. If not corrected, this condition could lead to the loss of control of the helicopter. This AD requires actions that are intended to address this unsafe condition.
2023-10-03: The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
2008-02-13: We are adopting a new airworthiness directive (AD) for all Boeing Model 727 airplanes. This AD requires repetitive external high frequency eddy current (HFEC) inspections of the crown skin for cracks at certain stringer attachment holes, and repair if necessary. This AD results from a report of cracks at multiple locations on certain areas of the crown skin. We are issuing this AD to detect and correct fatigue cracks of the crown skin, which could result in rapid decompression of the airplane.
2023-10-02: The FAA is superseding Airworthiness Directive (AD) 2021-23- 12, which applied to all transport and commuter category airplanes equipped with a radio (also known as radar) altimeter. AD 2021-23-12 required revising the limitations section of the existing airplane/ aircraft flight manual (AFM) to incorporate limitations prohibiting certain operations requiring radio altimeter data when in the presence of 5G C-Band interference as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2021-23-12, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. For certain airplanes, this AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting certain operations requiring radio altimeter data, due to the presence of 5G C-Band interference. This AD also requires modifying certain airplanes to allow safe operations in the U.S. 5G C-Band radio frequency environment. The FAA is issuing this AD to address the unsafe condition on these products.