AD 2021-08-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Turbomeca | Various | Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines |
| engine | Safran | Helicopter | Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines |
Unsafe Condition
Failure to accomplish the instructions in the applicable Maintenance and Overhaul Manuals could result in an unsafe condition.
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Required Actions
Replace certain critical parts before reaching their published in-service life limits, perform scheduled maintenance tasks before reaching their published periodicity, and perform unscheduled maintenance tasks when the engine meets certain conditions specified in the applicable Safran Arriel maintenance manual (MM) chapter. Revise the airworthiness limitation section (ALS) of the existing approved aircraft maintenance program (AMP) by incorporating the revised airworthiness limitations and maintenance tasks.
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Compliance Time
Before further flight
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Affected Aircraft
All Safran Helicopter Engines, S.A. (Safran) Arriel 2D and Arriel 2E model turboshaft engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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