Airworthiness directives › 2025-09-10
AD 2025-09-10 Airworthiness Directives; Leonardo S.p.A. Helicopters
Models named: A109E, A109S, AW109SP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Leonardo S.p.A. helicopters identified in paragraphs (c)(1) through (4) of this AD, certificated in any category. (1) Model A109E helicopters, all serial numbers (S/N). (2) Model A109S helicopters without Trekker Kit part number (P/N) 109G0000F01 installed, all S/Ns. (3) Model A109S helicopters with Trekker Kit P/N 109G0000F01installed, S/N 22202, 22088, 22701 through 22741 inclusive, 22743 through 22746 inclusive, and 22748. (4) Model AW109SP helicopters, S/N 22201, 22203, 22214 through 22362 inclusive, 22364 through 22460 inclusive, and 22462 through 22464 inclusive.
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 2024-0193, dated October 11, 2024 (EASA AD 2024-0193).
Unsafe condition
This AD was prompted by reports of incorrect installation of the motor (MTR) cables and the bonding braids connected to the engine fire extinguisher bottles. The FAA is issuing this AD to detect and correct incorrect installation of the MTR cables and the bonding braids to the engine fire extinguisher bottles, which could lead to reduced performance of the engine fire extinguishing system during an engine fire and consequent 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