# Airworthiness Directives; Eurocopter France Model SA-360C Helicopters
> **Rule** · Final rule; request for comments. · Published 1997-12-19 · Effective 1998-01-05 · 62 FR 66506
## Document
- **Document number:** 97-33145
- **Category:** airworthiness
- **Manufacturer:** Eurocopter France Model SA-360C
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 62 FR 66506
- **Publication date:** 1997-12-19
- **Effective date:** 1998-01-05
- **FAA docket:** Docket No. 97-SW-50-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to Eurocopter France Model SA-360C helicopters. This action requires replacement of the main gear box (MGB) input bevel pinion (bevel pinion). This amendment is prompted by service reports of bevel pinion fatigue cracking. This condition, if not corrected, could result in failure of the MGB and a subsequent forced landing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/12/19/97-33145/airworthiness-directives-eurocopter-france-model-sa-360c-helicopters)
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