# Proposed AD FAA-2010-0228: McDonnell Douglas Corporation Model MD- 11 and MD-11F Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-02-01
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: November 17, 2010, 75 FR 70150
- Comments due: December 13, 2010
- Became: [AD 2011-02-01](https://openairdocs.org/ad/2011-02-01)
- Docket: FAA-2010-0228 (https://www.regulations.gov/docket/FAA-2010-0228, where comments are filed)
- Project: 2009-NM-252-AD
- FR document: 2010-28937
- Official PDF: https://openairdocs.org/files/sha256/98/1d/981de4b989b655040d659a315329d6e780ac8040f8f2684715abb9531015a571 (from https://www.govinfo.gov/content/pkg/FR-2010-11-17/pdf/2010-28937.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/11/17/2010-28937/airworthiness-directives-mcdonnell-douglas-corporation-model-md-11-and-md-11f-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/12F196A7908629CA862577DE005016D5.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0228

## Summary

We are revising an earlier proposed airworthiness directive (AD) for the products listed above. That NPRM proposed a one-time inspection to detect damage of the wire assemblies of the tail tank fuel system, a wiring change, and corrective actions if necessary. That NPRM was prompted by fuel system reviews conducted by the manufacturer. This action revises that NPRM by adding, for certain airplanes, a general visual inspection for correct installation of the self- adhering, high-temperature electrical insulation tape; installation of a wire assembly support bracket and routing wire assembly; changing wire supports; and installation of a wire protection bracket. We are proposing this supplemental NPRM to detect and correct a potential of ignition sources inside fuel tanks, which, in combination with flammable vapors, could result in a fuel tank fire or explosion, and consequent loss of the airplane.

## Notices in this docket

- Mar 16, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-5667, comments due Apr 30, 2010 (https://www.federalregister.gov/documents/2010/03/16/2010-5667/airworthiness-directives-mcdonnell-douglas-corporation-model-md-11-and-md-11f-airplanes)
- Nov 17, 2010: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2010-28937, comments due Dec 13, 2010 (https://www.federalregister.gov/documents/2010/11/17/2010-28937/airworthiness-directives-mcdonnell-douglas-corporation-model-md-11-and-md-11f-airplanes)

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