AD 2009-12-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | S | Airworthiness Directives; Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 Turboshaft Engines |
Unsafe Condition
Reports of oil leaks from certain reduction gearbox (module M05) front casings. The lubrication duct plug was not properly bonded/glued in place.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform initial and repetitive visual inspections of reduction gearboxes (module M05) for oil leakage. Repair if leaking. Repair all affected modules as terminating action to repetitive inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 turboshaft engines modified by Turbomeca Modification TU332 and fitted with modules M05 as listed in Turbomeca S.A. Mandatory Service Bulletin (MSB) No. A292 72 0825, Version A.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.