# Proposed AD FAA-2011-0649: The Boeing Company Model MD-11 and MD- 11F Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-25-06
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 30, 2011, 76 FR 38332
- Comments due: August 15, 2011
- Became: [AD 2011-25-06](https://openairdocs.org/ad/2011-25-06)
- Docket: FAA-2011-0649 (https://www.regulations.gov/docket/FAA-2011-0649, where comments are filed)
- Project: 2011-NM-076-AD
- FR document: 2011-16479
- Official PDF: https://openairdocs.org/files/sha256/5f/c2/5fc27771b4a5985818cce47695b523dd49f99e12abc7ece94a56f47159320f1c (from https://www.govinfo.gov/content/pkg/FR-2011-06-30/pdf/2011-16479.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/06/30/2011-16479/airworthiness-directives-the-boeing-company-model-md-11-and-md-11f-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3B0B8EE23794BF23862578BF00474A8D.0001
- Page: https://openairdocs.org/proposed/FAA-2011-0649

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require replacing the rub strips of the tail fuel tank access door with new rub strips. This proposed AD was prompted by a report that the rub strips of the tail fuel tank access door were manufactured improperly. We are proposing this AD to prevent inadequate electrical bonding between the rub strips and the fuel access door, which can contribute to possible ignition of flammable fuel vapor in the tail fuel tank as a result of a lightning strike.

## Notices in this docket

- Jun 30, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-16479, comments due Aug 15, 2011 (https://www.federalregister.gov/documents/2011/06/30/2011-16479/airworthiness-directives-the-boeing-company-model-md-11-and-md-11f-airplanes)

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