# Proposed AD FAA-2010-0272: AVOX Systems and B/E Aerospace Oxygen Cylinders as Installed on Various 14 CFR Part 23 and CAR 3 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-11-05
- Products: AVOX
- Product type: Appliance
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 17, 2010, 75 FR 12713
- Comments due: May 3, 2010
- Became: [AD 2010-11-05](https://openairdocs.org/ad/2010-11-05)
- Docket: FAA-2010-0272 (https://www.regulations.gov/docket/FAA-2010-0272, where comments are filed)
- Project: 2010-CE-009-AD
- FR document: 2010-5862
- Official PDF: https://openairdocs.org/files/sha256/6d/7c/6d7c36e683b56d795da1fd6656a5a700daf0f3395b5f96b4fac87c9f4064e7de (from https://www.govinfo.gov/content/pkg/FR-2010-03-17/pdf/2010-5862.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/03/17/2010-5862/airworthiness-directives-avox-systems-and-be-aerospace-oxygen-cylinders-as-installed-on-various-14
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D8C1019DEBB6D4D5862576EA0065596D.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0272

## Summary

We propose to adopt a new airworthiness directive (AD) for certain AVOX Systems and B/E Aerospace oxygen cylinders, as installed on various 14 CFR part 23 or CAR 3 airplanes. This proposed AD would require inspecting for and removing substandard oxygen cylinders from the airplane. This proposed AD was prompted by the reported rupture of a high-pressure gaseous oxygen cylinder, which had insufficient strength characteristics due to improper heat treatment. We are proposing this AD to prevent an oxygen cylinder from rupturing, which, depending on the location, could result in structural damage and rapid decompression of the airplane, damage to adjacent essential flight equipment, deprivation of the necessary oxygen supply for the flightcrew, and injury to cabin occupants or other support personnel.

## Notices in this docket

- Mar 17, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-5862, comments due May 3, 2010 (https://www.federalregister.gov/documents/2010/03/17/2010-5862/airworthiness-directives-avox-systems-and-be-aerospace-oxygen-cylinders-as-installed-on-various-14)

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