# Proposed AD FAA-2009-0379: Airbus Model A318, A319, A320, and A321 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-24-19
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 29, 2009, 74 FR 19462
- Comments due: May 29, 2009
- Became: [AD 2009-24-19](https://openairdocs.org/ad/2009-24-19)
- Docket: FAA-2009-0379 (https://www.regulations.gov/docket/FAA-2009-0379, where comments are filed)
- Project: 2008-NM-220-AD
- FR document: E9-9712
- Official PDF: https://openairdocs.org/files/sha256/a6/25/a62592599f1dc5c9d69722d27f26d3291763a11614c36b000c734caa4c786387 (from https://www.govinfo.gov/content/pkg/FR-2009-04-29/pdf/E9-9712.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/04/29/E9-9712/airworthiness-directives-airbus-model-a318-a319-a320-and-a321-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C6CEF4D22251FD14862575A7004C4623.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0379

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. 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: An A320 operator experienced difficulties in extending the RAT [ram air turbine] during a deployment testing. During the trouble shooting, the Ejection Jack of the RAT was removed and investigated. The investigation identified excessive wear of the uplock segments against the inner cylinder of the Ejection Jack, due to an incorrect blend radius of the inner cylinder. This Ejection Jack failure may prevent the effective deployment and use of the RAT in emergency conditions. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Apr 29, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-9712, comments due May 29, 2009 (https://www.federalregister.gov/documents/2009/04/29/E9-9712/airworthiness-directives-airbus-model-a318-a319-a320-and-a321-series-airplanes)

---
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.