# Proposed AD FAA-2013-0668: Airbus Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-08-02
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 1, 2013, 78 FR 46536
- Comments due: September 16, 2013
- Became: [AD 2014-08-02](https://openairdocs.org/ad/2014-08-02)
- Docket: FAA-2013-0668 (https://www.regulations.gov/docket/FAA-2013-0668, where comments are filed)
- Project: 2013-NM-017-AD
- FR document: 2013-18556
- Official PDF: https://openairdocs.org/files/sha256/65/51/65514957883ab939e2c7781c06641b9b28feffa977bf8a35d8b76404e463aadc (from https://www.govinfo.gov/content/pkg/FR-2013-08-01/pdf/2013-18556.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/08/01/2013-18556/airworthiness-directives-airbus-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AC359EE0C4CDC30386257BBA004E76FE.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0668

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A300 B4-600 and A300 B4-600R series airplanes. This proposed AD was prompted by reports of cracks found in the bottom wing skin stringers at rib 14 during full-scale fatigue testing and in service. This proposed AD would require modifying the profile of stringer run-outs at rib 14 of both wings, including a high frequency eddy current inspection of the fastener holes for defects and repair if necessary. We are proposing this AD to prevent cracking in the bottom wing skin stringers, which could result in reduced structural integrity of the wings.

## Notices in this docket

- Aug 1, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-18556, comments due Sep 16, 2013 (https://www.federalregister.gov/documents/2013/08/01/2013-18556/airworthiness-directives-airbus-airplanes)

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