# Proposed AD FAA-2009-0557: SOCATA Model TBM 700 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-13-05
- Products: SOCATA
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 2, 2009, 74 FR 45381
- Comments due: October 19, 2009
- Became: [AD 2009-13-05](https://openairdocs.org/ad/2009-13-05)
- Docket: FAA-2009-0557 (https://www.regulations.gov/docket/FAA-2009-0557, where comments are filed)
- Project: 2009-CE-031-AD
- FR document: E9-21145
- Official PDF: https://openairdocs.org/files/sha256/8f/f2/8ff2daf193743004a18ad0bccf296025f24af994cb68b726c3f73436fde94fd2 (from https://www.govinfo.gov/content/pkg/FR-2009-09-02/pdf/E9-21145.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/09/02/E9-21145/airworthiness-directives-socata-model-tbm-700-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A4170579FAEB599786257625004E5D42.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0557

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above that would revise an existing AD. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

During a SOCATA flight test, it has been noted some difficulties for the pilot to release oxygen. After investigation it has been found that, due to the design of the oxygen generator release pin, one of the mask's lanyard linked to the pin can be jammed when it is pulled by a pilot or a passenger. This condition, if not corrected, would lead, in case of an emergency procedure due to decompression, to a risk of generator fault with subsequent lack of oxygen on crew and/or passenger. For the reasons described above * * *.

This revision has been released to clarify the applicability. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Sep 2, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-21145, comments due Oct 19, 2009 (https://www.federalregister.gov/documents/2009/09/02/E9-21145/airworthiness-directives-socata-model-tbm-700-airplanes)

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