# Proposed AD FAA-2013-1066: Airbus Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-23-13
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 30, 2013, 78 FR 79333
- Comments due: February 13, 2014
- Became: [AD 2014-23-13](https://openairdocs.org/ad/2014-23-13)
- Docket: FAA-2013-1066 (https://www.regulations.gov/docket/FAA-2013-1066, where comments are filed)
- Project: 2013-NM-021-AD
- FR document: 2013-31186
- Official PDF: https://openairdocs.org/files/sha256/61/d3/61d368227cf1fce31e3cd53129dcb1d2cd59523cfa6ff782e8335650a29c966e (from https://www.govinfo.gov/content/pkg/FR-2013-12-30/pdf/2013-31186.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/12/30/2013-31186/airworthiness-directives-airbus-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F535A46B99D8CCEA86257C5100521B12.0001
- Page: https://openairdocs.org/proposed/FAA-2013-1066

## Summary

We propose to supersede airworthiness directive (AD) 2000-12- 12, for certain Airbus Model A300, A300-600, and A310 series airplanes. AD 2000-12-12 currently requires inspecting to detect cracks in the lower spar axis of the nacelle pylon between ribs 9 and 10, and repair if necessary. AD 2000-12-12 also provides for optional modification of the pylon, which terminates the inspections for Model A300 series airplanes. Since we issued AD 2000-12-12, we have received reports of cracking of the lower pylon spar after accomplishing the existing modification and have determined that shorter initial and repetitive inspection compliance times are necessary to address the identified unsafe condition. This proposed AD would reduce the initial and repetitive inspection compliance times. We are proposing this AD to detect and correct fatigue cracking, which could result in reduced structural integrity of the lower spar of the nacelle pylon.

## Notices in this docket

- Dec 30, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-31186, comments due Feb 13, 2014 (https://www.federalregister.gov/documents/2013/12/30/2013-31186/airworthiness-directives-airbus-airplanes)

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