Proposed Rule 21 Aug 2025 compliance, regulations, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directives, gulfstream

✈️Proposed Airworthiness Directive for Gulfstream Aircraft – FAA NPRM

The FAA proposes to adopt a new airworthiness directive (AD) for all Gulfstream Aerospace LP Model Gulfstream 100, Astra SPX, and 1125 Westwind Astra airplanes. This proposed AD was prompted by a determination that new airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 21 Aug 2025 compliance, regulation, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directive, atr airplanes

✈️Proposed Airworthiness Directive for ATR Airplanes

The FAA proposes to adopt a new airworthiness directive (AD) for certain ATR--GIE Avions de Transport R[eacute]gional Model ATR42- 300, -320, -500, ATR72-201, and -212A airplanes, and for all ATR--GIE Avions de Transport R[eacute]gional Model ATR72-102, -202, -211, and - 212 airplanes. This proposed AD was prompted by an inspection on the ATR final assembly line that found a fire extinguishing tube, located on the ceiling of the aft cargo compartment, disconnected from its sleeve. This proposed AD would require a functional check of the aft cargo fire extinguishing system and applicable on-condition actions, if necessary. For certain airplanes, this proposed AD would also require an additional functional check and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 21 Aug 2025 compliance, regulation, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, aircraft safety, airworthiness directive, maintenance, mhi rj aviation

✈️Proposed Airworthiness Directive for MHI RJ Aviation Maintenance

The FAA proposes to adopt 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 proposed AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 21 Aug 2025 compliance, regulations, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, helicopter, transport, airworthiness

🚁Proposed Airworthiness Directive for Airbus Helicopters by FAA

The FAA proposes to supersede Airworthiness Directive (AD) 2021-20-16, which applies to all Airbus Helicopters Model AS355E, AS 355-F, AS 355-F1, AS355F2, AS355N, and AS355NP helicopters and certain Model AS 350B3 helicopters. AD 2021-20-16 requires repetitive cleaning and visual and detailed inspections of the right-hand side of the vertical fin spar and vertical fin upper attachments for discrepancies (cracking) with corrective action, if necessary. Since the FAA issued AD 2021-20-16, Airbus Helicopters developed a modification of the upper fin assembly. This proposed AD would require the same actions as AD 2021-20-16 and would also require replacement of the upper fin assembly with a modified upper fin assembly, which would constitute terminating action for the repetitive inspections. The FAA is proposing this AD to address the unsafe condition on these products.

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Rule 20 Aug 2025 regulatory compliance, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, maintenance, helicopter safety

🚁New Airworthiness Directive for Siam Hiller Helicopters Issued

The FAA is adopting a new airworthiness directive (AD) for certain Siam Hiller Holdings, Inc. (Siam Hiller), Model UH-12E (Army OH-23G and H-23F) and UH-12E-L helicopters. This AD was prompted by reports of cracks found in a main rotor (M/R) transmission drive shaft (drive shaft). This AD requires inspecting certain M/R drive shafts for a crack, prohibits installing certain M/R drive shafts unless the inspection is done, and prohibits using certain paint strippers. The FAA is issuing this AD to address the unsafe condition on these products.

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Proposed Rule 19 Aug 2025 compliance, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, helicopter, airbus, airworthiness

🚁Proposed Rulemaking on Airworthiness for Airbus Helicopters

The FAA proposes to supersede Airworthiness Directive (AD) 2020-06-12, which applies to certain Airbus Helicopters Model AS 332L2 and EC 225LP helicopters. AD 2020-06-12 requires determining the accumulated hours time-in-service (TIS) of certain part-numbered main gearbox (MGB) suspension bar attachment bolts (bolt) and certain part- numbered MGB suspension bar attachment fittings (fitting), applying a life limit add-on factor, and inspecting the torque of certain MGB suspension bar attachment nuts (nuts). Since the FAA issued AD 2020-06- 12, the manufacturer developed a design improvement, and the FAA determined modifying the helicopter is necessary. This proposed AD would retain the actions required by AD 2020-06-12 and would also require modification of the MGB suspension bar, inspection of the torque, and corrective actions. This proposed AD would also allow credit for the initial service life calculations if certain requirements are met and would prohibit installing a certain bolt after the modification is accomplished on any helicopter. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 19 Aug 2025 regulatory compliance, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directive, maintenance

✈️FAA Proposes New Airworthiness Directive for ATR Airplanes

The FAA proposes to adopt a new airworthiness directive (AD) for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and Model ATR72 airplanes. This proposed AD was prompted by a design review that determined that the inspection interval of the pressure regulator and shut-off valve (PRSOV) functional test must be reduced to meet the design safety objectives, due to a risk of dormant failures. This proposed AD would require repetitive functional tests of each PRSOV, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

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Rule 18 Aug 2025 compliance, regulations, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directives, airbus

✈️New Airworthiness Directives for Airbus A321-271NY by FAA

The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A321-271NY airplanes. This AD was prompted by the determination that affected parts addressed by other ADs could be installed in service on this airplane model. This AD requires corrective action if necessary and prohibits the installation of affected parts. The FAA is issuing this AD to address unsafe conditions on these products.

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Rule 18 Aug 2025 aviation, safety, aircraft, aviation safety, incorporation by reference, federal aviation administration, air transportation, airbus helicopters, safety regulations, helicopter compliance

🚁New Airworthiness Directive for Airbus Helicopters EC130 Compliance

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC 130 B4 and EC 130 T2 helicopters. This AD was prompted by the determination that fatigue cracks may develop at the root section of certain tail rotor blades (TRBs). This AD requires inspecting those TRBs and, depending on the results, replacing the TRB with a serviceable TRB. This AD also prohibits installing those TRBs unless certain actions are accomplished. The FAA is issuing this AD to address the unsafe condition on these products.

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Rule 18 Aug 2025 compliance, regulations, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directives, airbus

✈️FAA Airworthiness Directive for Airbus SAS Aircraft Compliance

The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A319-112 and -132 airplanes, and Model A320- 214, -232, -233, -251N, and -271N airplanes. This AD was prompted by rivet holes being left unplugged after bracket relocation or removal accomplished during certain modifications, potentially resulting in fatigue damage starting from those rivet holes. This AD requires a one- time special detailed inspection (SDI) of the rivet holes and applicable corrective actions; and allows the installation of certain modifications, provided rivets are installed after the modification. The FAA is issuing this AD to address the unsafe condition on these products.

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