Airworthiness directives › 2025-13-07
AD 2025-13-07 Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Engines
Models named: ARRIUS 2B2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Safran Helicopter Engines, S.A. (type certificate previously held by Turbomeca, S.A.) Model ARRIUS 2B2 engines.
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 (EASA) AD 2024-0195R1, dated October 22, 2024 (EASA AD 2024-0195R1).
Unsafe condition
This AD was prompted by a manufacturer review of collected data from in-service engines that indicated the preference injector may clog over time caused by fuel coking, which could decrease the permeability of the preference injector. The FAA is issuing this AD to detect and correct clogging and decreased permeability of the preference injector due to fuel coking. The unsafe condition, if not addressed, when combined with a sharp reduction in fuel flow, could result in a flameout in the combustion chamber, which could result in an uncommanded in-flight shutdown of the engine and reduced control of the helicopter.
Affected ADs
None.
Read the original on the Federal Register →
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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