# Proposed AD FAA-2012-0493: Airbus Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-20-07
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 31, 2012, 77 FR 32060
- Comments due: July 16, 2012
- Became: [AD 2012-20-07](https://openairdocs.org/ad/2012-20-07)
- Docket: FAA-2012-0493 (https://www.regulations.gov/docket/FAA-2012-0493, where comments are filed)
- Project: 2011-NM-180-AD
- FR document: 2012-13191
- Official PDF: https://openairdocs.org/files/sha256/a5/b3/a5b3d40037de3a8eb7e1b23d425f73d6f5b797c2d0d427812c2308586bc1f085 (from https://www.govinfo.gov/content/pkg/FR-2012-05-31/pdf/2012-13191.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/05/31/2012-13191/airworthiness-directives-airbus-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B00FDC658426CD0886257A0F0049BC84.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0493

## Summary

We propose to supersede an existing airworthiness directive (AD) for all Airbus Model A318-111 and -112 airplanes; and all Model A319, A320, and A321 series airplanes. The existing AD currently requires revising the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems. Since we issued that AD, Airbus has issued more restrictive maintenance requirements and/or airworthiness limitations. This proposed AD would revise the maintenance program to incorporate revised fuel maintenance and inspection tasks, and add airplanes to the applicability. We are proposing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

## Notices in this docket

- May 31, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-13191, comments due Jul 16, 2012 (https://www.federalregister.gov/documents/2012/05/31/2012-13191/airworthiness-directives-airbus-airplanes)

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