AD 76-09-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca S.A. | Astazou II A | TURBOMECA Model Astazou IIAd Engines |
Unsafe Condition
Axial compressor wheel failure due to corrosion and fatigue.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect axial compressor wheels (P/Ns 0.236.15.014 Index A and 0.268.15.004) for cracks or corrosion. If a crack is found, replace the wheel with a new wheel (P/N 0.236.15.016, 0.268.15.011, or 0.268.15.010) modified per Turbomeca MOD TU 196 or equivalent. If corrosion is found without cracks, either rework the wheel per MOD TU 196 or replace it as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 100 hours' time in service after the effective date of this AD, or before the accumulation of 1000 hours' time in service since new, whichever occurs later
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Turbomeca Astazou IIAd engines installed on Aerospatiale Alouette II Models SA3180, SA318B, SA318C helicopters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.