# Proposed AD FAA-2013-0634: Eurocopter Deutschland GmbH Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-01-02
- Products: Eurocopter Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 23, 2013, 78 FR 44050
- Comments due: September 23, 2013
- Became: [AD 2014-01-02](https://openairdocs.org/ad/2014-01-02)
- Docket: FAA-2013-0634 (https://www.regulations.gov/docket/FAA-2013-0634, where comments are filed)
- Project: 2012-SW-023-AD
- FR document: 2013-17632
- Official PDF: https://openairdocs.org/files/sha256/76/76/76765e32f4ae9d368c65525aad9d4be75bf1b4eeed919d67203e63f528ce2de2 (from https://www.govinfo.gov/content/pkg/FR-2013-07-23/pdf/2013-17632.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/07/23/2013-17632/airworthiness-directives-eurocopter-deutschland-gmbh-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9F8635D5523FD2B386257BB1004B5A99.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0634

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Eurocopter Deutschland GmbH (Eurocopter) Model EC135P2+ and EC135T2+ helicopters. This proposed AD would require inspecting the mechanical air conditioning system compressor bearing block upper bearing (upper bearing) for corrosion, leaking grease, condensation, or water. This proposed AD is prompted by metallic debris from an upper bearing found in the air inlet areas of both engines in a Model EC135P2+ helicopter. The proposed actions are intended to prevent metallic debris from damaging the engine, causing loss of engine power, and subsequent loss of helicopter control.

## Notices in this docket

- Jul 23, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-17632, comments due Sep 23, 2013 (https://www.federalregister.gov/documents/2013/07/23/2013-17632/airworthiness-directives-eurocopter-deutschland-gmbh-helicopters)

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