Proposed Rule 2 Jun 2025 regulatory compliance, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airbus, safety directives, helicopter maintenance

🚁Proposed Airworthiness Directive for Airbus Helicopters

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Model AS 332L2 and EC 225LP helicopters. This proposed AD was prompted by reports of overlengthened and deformed attachment bolts installed on the link of the main gearbox (MGB) suspension bar attachment bracket. This proposed AD would require replacing certain attachment bolts on the MGB suspension bar fittings, inspecting the removed bolts, and reporting the results of this inspection to Airbus Helicopters. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 22 May 2025 regulatory compliance, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directives, airbus helicopters, helicopter maintenance

🚁Proposed Airworthiness Directives for Airbus Helicopters by FAA

The FAA proposes to supersede Airworthiness Directive (AD) 2019-19-13, which applies to certain Airbus Helicopters Model EC225LP helicopters. AD 2019-19-13 requires determining the total hours time- in-service (TIS) of the free wheel shafts of certain main rotor gearboxes (MGBs), replacing the MGB or right-hand side (RH) free wheel shaft, installing placard(s), and revising the Rotorcraft Flight Manual (RFM) for the helicopter. Since the FAA issued AD 2019-19-13, an additional part-numbered MGB has been identified to have the same unsafe condition and the FAA determined that additional changes are necessary. This proposed AD would require the actions of AD 2019-19-13 and, expand the applicability by adding the additional part-numbered MGB, change the requirement to determine the total hours TIS of a certain free wheel shaft, require repetitive replacement of the MGB or the RH free wheel shaft, change the requirements for who can replace parts, and expand the parts installation limitation conditions. The FAA is proposing this AD to address the unsafe condition on these products.

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Rule 17 Apr 2025 faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directive, airbus helicopters, helicopter maintenance, aircraft regulation

🚁New Airworthiness Directive for Airbus Helicopters Model AS332L

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS332L helicopters. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the airworthiness limitations section (ALS) of the existing maintenance manual (MM) or instructions for continued airworthiness (ICAs) and the existing approved maintenance or inspection program, as applicable, 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.

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Rule 4 Apr 2025 regulatory compliance, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airbus, airworthiness, helicopter maintenance

🚁New Airworthiness Directive for Airbus Helicopters

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters (Airbus) Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This AD was prompted by a manufacturer assessment that determined additional actions are necessary to improve particle detection for main gearboxes (MGBs) with certain planet gear bearings installed. This AD requires repetitively inspecting the MGB bevel wheel and the MGB magnetic plug for particles and prohibits installing an affected MGB unless certain requirements are met. These actions are 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.

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