AD 2016-25-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | S | Airworthiness Directives; Safran Helicopter Engines, S.A. (Formerly Turbomeca S.A.) Turboshaft Engines |
| engine | Safran | Helicopter | Airworthiness Directives; Safran Helicopter Engines, S.A. (Formerly Turbomeca S.A.) Turboshaft Engines |
Unsafe Condition
Rupture of the 41-tooth gear, which forms part of the bevel gear in the engine AGB, leading to failure of the engine AGB, uncommanded in-flight shutdown (IFSD), damage to the engine, and damage to the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform initial and repetitive wear inspections of the engine AGB cover. Use the criteria in Safran Helicopter Engines, S.A. MSB No. 292 72 2861, Version D, to determine corrective actions based on wear measurements. Replace the engine AGB if wear exceeds specified limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 engine hours after April 14, 2016, or before the next flight after the effective date of this AD, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Safran Helicopter Engines, S.A. Arriel 2B, 2B1, 2C, 2C1, 2C2, 2D, 2E, 2S1, and 2S2 turboshaft engines with engine accessory gearbox (AGB), part number 0292120650, with a machined front casing.
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
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