# Proposed AD FAA-2012 0040: Airbus Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 6, 2012, 77 FR 5728
- Comments due: March 22, 2012
- Docket: FAA-2012 0040 (https://www.regulations.gov/docket/FAA-2012 0040, where comments are filed)
- Project: 2011-NM-121-AD
- FR document: 2012-2625
- Official PDF: https://openairdocs.org/files/sha256/fe/93/fe93cf07880c7baf21d44f9aca81f1b80ba639ce1937c59c7e8722e26c917306 (from https://www.govinfo.gov/content/pkg/FR-2012-02-06/pdf/2012-2625.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/02/06/2012-2625/airworthiness-directives-airbus-airplanes
- Page: https://openairdocs.org/proposed/FAA-2012%200040

## Summary

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A300 series airplanes; all Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes). This proposed AD was prompted by reports of an inoperative fire shut-off valve (FSOV) as a result of damage due to over-length of the bonding lead. This proposed AD would require a one-time detailed inspection for length of the FSOV bonding leads and for contact or chafing of the wires, and corrective actions, if necessary. We are proposing this AD to detect and correct contact or chafing of wires and bonding leads which, if not detected could be a source of sparks in the wing trailing edge, and could lead to an uncontrolled engine fire.

## Notices in this docket

- Feb 6, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-2625, comments due Mar 22, 2012 (https://www.federalregister.gov/documents/2012/02/06/2012-2625/airworthiness-directives-airbus-airplanes)

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