# Airworthiness Directives; Eurocopter France Model AS350B, AS350B1, AS350B2, AS350BA, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, and AS355N Helicopters
> **Rule** · Final rule; request for comments. · Published 2002-02-11 · Effective 2002-02-26 · 67 FR 6159
## Document
- **Document number:** 02-2424
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 67 FR 6159
- **Publication date:** 2002-02-11
- **Effective date:** 2002-02-26
- **FAA docket:** Docket No. 2001-SW-74-AD
## Abstract

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2001-26-55, which was sent previously to all known U.S. owners and operators of Eurocopter France (ECF) Model AS350B, AS350B1, AS350B2, AS350BA, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters by individual letters. This AD requires, before further flight and thereafter at specified intervals, visually checking the tail rotor blade (blade) skin for a crack and replacing any cracked blade before further flight. This AD is prompted by the discovery of cracks in the skin of a blade. The actions specified by this AD are intended to prevent failure of the blade, which could result in severe vibration, loss of the tail rotor gearbox (TGB), and subsequent loss of control of the helicopter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/02/11/02-2424/airworthiness-directives-eurocopter-france-model-as350b-as350b1-as350b2-as350ba-as350b3-as350c)
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