# Proposed AD FAA-2014-0251: Airbus Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-16-22
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 15, 2014, 79 FR 27814
- Comments due: June 30, 2014
- Became: [AD 2014-16-22](https://openairdocs.org/ad/2014-16-22)
- Docket: FAA-2014-0251 (https://www.regulations.gov/docket/FAA-2014-0251, where comments are filed)
- Project: 2013-NM-179-AD
- FR document: 2014-11187
- Official PDF: https://openairdocs.org/files/sha256/50/29/502945c7f159a98f2dbd72b3d7be8f1632f44d638a56eacca43f5ff660e8804f (from https://www.govinfo.gov/content/pkg/FR-2014-05-15/pdf/2014-11187.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/05/15/2014-11187/airworthiness-directives-airbus-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B833158D42BF973A86257CD90044FD72.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0251

## Summary

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-200 Freighter, A330-200, A330-300, A340-200, -300, - 500, and -600 series airplanes. This proposed AD was prompted by a determination that the service life limits of the cabin pressure control system (CPCS) safety valves installed on the aft pressure bulkhead were being exceeded. This proposed AD would require repetitive replacement of the CPCS safety valves with serviceable valves. We are proposing this AD to prevent exceeding the service life limits of the CPCS safety valves, which, in the event of a failure, could result in excessive positive or negative differential pressure in the fuselage and consequent incapacitation or injuries to airplane occupants.

## Notices in this docket

- May 15, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-11187, comments due Jun 30, 2014 (https://www.federalregister.gov/documents/2014/05/15/2014-11187/airworthiness-directives-airbus-airplanes)

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