AD 2012-1118
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France | Airworthiness Directives; Eurocopter France Helicopters |
Unsafe Condition
Failure of the main gearbox (MGB) due to degradation of the epicyclic module, which can result in rupture of the MGB case and separation of the main rotor head.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect maintenance records to determine if the 'CHIP' detector light illuminated due to a metal particle on the chip detector. Replace the module with an airworthy one if the light stayed illuminated after the 'CHIP' detector switch was turned to the 'CHIP PULSE' setting. Inspect the MGB module magnetic chip detector electrical circuit to ensure proper functioning. Modify, reidentify, and reinstall the chip collector within 50 hours time-in-service unless already accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 hours time-in-service
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter France Model AS332L2 and EC225LP helicopters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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