AD 2013-16-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France | Airworthiness Directives; Eurocopter France Helicopters |
Unsafe Condition
A crack in the control lever attachment yoke of the TGB casing assembly, which could result in loss of tail rotor pitch control and loss of helicopter control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 100 hours time-in-service, remove the control lever, strip the paint from the TGB control lever attachment yokes, and perform a Fluorescent Penetrant Inspection (FPI) for a crack. If a crack exists, replace the TGB with an airworthy TGB before further flight. If no crack is found, clean the inspected area and apply chemical conversion coating, Epoxy primer, and top coat paint.
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Compliance Time
Within 100 hours time-in-service
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Affected Aircraft
Eurocopter AS350C, D, D1, B, BA, B1, B2, and B3; and AS355E, F, F1, F2, N, and NP helicopters, with a tailrotor gearbox (TGB) casing assembly, part number (P/N) 350A33-1090-02 and specified serial numbers installed.
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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