AD 2012-26-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France | Airworthiness Directives; Eurocopter France Helicopters |
Unsafe Condition
Corrosion on the main gearbox (MGB) casing lower area between the servo-control anchoring ribs, caused by sealing compound on the lower part of the fitting/casing attachment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect portions of the main gearbox (MGB) for the presence of sealing compound and corrosion. Remove any sealing compound and inspect the anchoring fittings for corrosion. Repair any corrosion found. Apply touch-up protective treatment and renew any damaged sealing compound bead if no corrosion is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 hours time in service (TIS)
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Affected Aircraft
Eurocopter France helicopters: Model SA-365N, SA-365N1, AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-366G1, SA-365C, SA-365C1, and SA-365C2, certificated in any category.
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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