Airworthiness directives › 2026-16-01
AD 2026-16-01 Airworthiness Directives; Airbus Helicopters
Makes named: lycoming. Models named: AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, EC130B4, EC130T2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Airbus Helicopters, certificated in any category, identified in paragraphs (c)(1) through (3) of this AD. (1) Model AS350B, AS350BA, AS350B1, AS350B2, and AS350B3 helicopters, with a helicopter manufacture date before May 15, 2023. (2) Model AS350D helicopters, with a helicopter manufacture date before May 15, 2023, except helicopters equipped with a Lycoming engine. (3) Model EC130B4 and EC130T2 helicopters, with a helicopter manufacture date before February 13, 2023. Note 1 to paragraph (c)(1): Helicopters with AS350B3e designation are Model AS350B3 helicopters.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with European Union Aviation Safety Agency AD 2023-0127, dated June 27, 2023 (EASA AD 2023-0127).
Unsafe condition
This AD was prompted by reports of an incorrectly installed engine flange on the main gear box (MGB) engine coupling. The FAA is issuing this AD to detect and correct the inverted installation of the engine flange on the MGB engine coupling. The unsafe condition, if not detected and corrected, could result in the loss of power transmission to the MGB and the main rotor and lead to loss of control of the helicopter.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1