# Proposed AD FAA-2012-0795: Eurocopter France Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-05-23
- Products: Eurocopter France
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 30, 2012, 77 FR 44509
- Comments due: September 28, 2012
- Became: [AD 2013-05-23](https://openairdocs.org/ad/2013-05-23)
- Docket: FAA-2012-0795 (https://www.regulations.gov/docket/FAA-2012-0795, where comments are filed)
- Project: 2008-SW-53-AD
- FR document: 2012-18454
- Official PDF: https://openairdocs.org/files/sha256/af/31/af315440955ba2ee22aa29ab833bfe6bfbe9ac29174ec7783d1a1d79342ba6c2 (from https://www.govinfo.gov/content/pkg/FR-2012-07-30/pdf/2012-18454.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/07/30/2012-18454/airworthiness-directives-eurocopter-france-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2C84E18E6518FA7286257A4B0052A8EF.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0795

## Summary

We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS332C, L, and L1 helicopters to require a one-time inspection of the main rotor head (MRH) swash-plate upper bearing (bearing) for a non-smooth point (friction point). This proposed AD is prompted by a report of the premature deterioration of the MRH bearing of the rotating star installed on a Model AS332L1 helicopter. The proposed actions are intended to detect deterioration of the MRH bearing and to prevent overloading the scissor links which drive the main rotor system, failure of the scissors links, and subsequent loss of control of the helicopter.

## Notices in this docket

- Jul 30, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-18454, comments due Sep 28, 2012 (https://www.federalregister.gov/documents/2012/07/30/2012-18454/airworthiness-directives-eurocopter-france-helicopters)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.