# Proposed AD FAA-2013-0791: Airbus Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-03-08
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 25, 2013, 78 FR 58975
- Comments due: November 12, 2013
- Became: [AD 2014-03-08](https://openairdocs.org/ad/2014-03-08)
- Docket: FAA-2013-0791 (https://www.regulations.gov/docket/FAA-2013-0791, where comments are filed)
- Project: 2012-NM-026-AD
- FR document: 2013-23269
- Official PDF: https://openairdocs.org/files/sha256/b1/63/b163ede90eacfdf434ffeae45a3b6bf657f33219d84b6dfac8d4daf19882b157 (from https://www.govinfo.gov/content/pkg/FR-2013-09-25/pdf/2013-23269.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/09/25/2013-23269/airworthiness-directives-airbus-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5D64D272D4538A5986257BF1005D3DC1.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0791

## Summary

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A318, A319, A320, and A321 series airplanes. This proposed AD was prompted by a report that an investigation showed that when a certain combination of a target/proximity sensor serial number is installed on a flap interconnecting strut, a ``target FAR'' signal cannot be detected when it reaches the mechanical end stop of the interconnecting strut. This proposed AD would require an inspection to determine the part number (P/N) of the interconnecting struts installed on the wings, identifying the P/N and the serial number (S/N) of the associated target and proximity sensor if applicable, and replacing or re-identifying the flap interconnecting strut if applicable. We are proposing this AD to detect and correct a latent failure of the flap down drive disconnection due to an already-failed interconnecting strut sensor, which could result in asymmetric flap panel movement and consequent loss of control of the airplane.

## Notices in this docket

- Sep 25, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-23269, comments due Nov 12, 2013 (https://www.federalregister.gov/documents/2013/09/25/2013-23269/airworthiness-directives-airbus-airplanes)

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