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商业 · 2026/5/201 分钟阅读

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines

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摘要

The FAA proposes to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent7000-72 and Trent7000-72C engines. This proposed AD was prompted by reports of engine in-flight shut-downs (IFSDs) caused by the premature failure of certain parts. This proposed AD would prohibit the installation of certain lubrication/scavenge pumps unless certain installation criteria are met. The FAA is proposing this AD to address the unsafe condition on these products.

来源原始语言: Federal Register — Federal Aviation Administration打开原始公告 →

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商业 · 2026/5/15

Airworthiness Directives; Airbus Helicopters

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, EC130B4, and EC130T2 helicopters. This proposed AD was prompted by reports of an incorrectly installed engine flange on the main gear box (MGB) engine coupling. This proposed AD would require inspecting the MGB engine coupling for correct installation and, depending on the results, corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

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商业 · 2026/5/20

Airworthiness Directives; Airbus SAS Airplanes

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A330-841 and Model A330-941 airplanes. This proposed AD was prompted by reports of crack findings on the sloping rib. This proposed AD would require a repetitive inspection of the external surface of each sloping rib and each slat 1 inboard seal, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

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商业 · 2026/5/15

Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes

The FAA proposes to adopt a new airworthiness directive (AD) for certain Diamond Aircraft Industries Inc. (DAI) Model DA20-C1 airplanes. This proposed AD was prompted by a report of a certain emergency locator transmitter (ELT) not activating due to a missing jumper wire. This proposed AD would require a continuity inspection of the D-sub connector of the Artex ELT 1000 and, if necessary, corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

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商业 · 2026/5/15

Airworthiness Directives; Stemme GmbH Gliders

The FAA proposes to adopt a new airworthiness directive (AD) for all Stemme GmbH (Stemme) Model Stemme S 12 gliders. This proposed AD was prompted by reports of fuel leaking around certain copper sealing rings within the fuel system. This proposed AD would require repetitive visual checks of the fuel system for fuel leakage, and replacement of the affected copper sealing ring. This proposed AD would also prohibit the installation of affected parts. The FAA is proposing this AD to address the unsafe condition on these products.

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商业 · 2026/5/22

Airworthiness Directives; Airbus Helicopters

The FAA proposes to supersede Airworthiness Directive (AD) 2023-25-14, which applies to certain Airbus Helicopters Model EC130T2 helicopters. AD 2023-25-14 revises the procedures for inspecting the vibration level on the tail rotor drive shaft and, depending on these results, requires replacing certain parts. Since the FAA issued AD 2023-25-14, the manufacturer developed a modification of the rear drive shaft, sliding flange and equipped splined sleeve. This proposed AD would require installing this modification and repetitively inspecting the vibration level of the tail rotor drive shaft. This proposed AD would also prohibit the installation of certain parts and prohibit the performance of a balance correction unless certain requirements are met. The FAA is proposing this AD to address the unsafe condition on these products.

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商业 · 2026/5/21

Airworthiness Directives; Bell Textron Canada Limited Helicopters

The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited (BTCL) Model 407 helicopters. This AD was prompted by a determination that chafing can occur at various locations on the electrical harnesses located in the aircraft instrument panel area. This AD requires a one-time detailed visual inspection of the electrical harnesses for chafing and corrective actions if necessary. This AD also requires rotation of the backshell cast housing of connectors of the lower engine airframe unit and installation of a wire harness bracket and support, and for certain helicopters, installation of a wire bundle sleeve. The FAA is issuing this AD to address the unsafe condition on these products.

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