# Proposed AD FAA-2010-1044: McDonnell Douglas Corporation Model DC- 10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F; Model MD-10-10F, MD-10-30F, MD-11, and MD-11F Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-11-05
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 5, 2010, 75 FR 68246
- Comments due: December 20, 2010
- Became: [AD 2011-11-05](https://openairdocs.org/ad/2011-11-05)
- Docket: FAA-2010-1044 (https://www.regulations.gov/docket/FAA-2010-1044, where comments are filed)
- Project: 2010-NM-033-AD
- FR document: 2010-28092
- Official PDF: https://openairdocs.org/files/sha256/c4/56/c4565d631123d4bd0f7b725e6fdba72cabb717f734272c4b7d4b7ede8a2e6aad (from https://www.govinfo.gov/content/pkg/FR-2010-11-05/pdf/2010-28092.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/11/05/2010-28092/airworthiness-directives-mcdonnell-douglas-corporation-model-dc-10-10-dc-10-10f-dc-10-15-dc-10-30
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8CE0BB757AAA4B6D862577D20053E9DD.0001
- Page: https://openairdocs.org/proposed/FAA-2010-1044

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10- 10F, MD-10-30F, MD-11, and MD-11F airplanes. The existing AD currently requires an inspection to determine if a certain fuel pump housing electrical connector is installed. The existing AD also requires a revision to the FAA-approved airplane flight manual (AFM) to advise the flightcrew of the appropriate procedures for disabling certain fuel pump electrical circuits following failure of a fuel pump housing electrical connector if applicable. The existing AD also requires the deactivation of certain fuel tanks or fuel pumps and the installation of placards if applicable. The existing AD allows the optional replacement of the fuel pump housing electrical connectors with new, improved parts, which would terminate the AFM revisions, deactivation of certain fuel tanks and fuel pumps, andplacard installation. This proposed AD would instead require replacing the fuel pump housing electrical connector assembly with a new part and doing repetitive inspections for continuity, resistance, and insulation resistance, and doing corrective actions if necessary. This proposed AD results from reports of failures of a certain fuel pump housing electrical connector. We are proposing this AD to detect and correct insulation resistance degradation and arcing in the potted backside of the electrical connector assembly of the fuel boost/transfer pump housing, which could compromise its performance and cause an ignition source in the fuel tank, resulting in a fuel tank explosion and consequent loss of the airplane.

## Notices in this docket

- Nov 5, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-28092, comments due Dec 20, 2010 (https://www.federalregister.gov/documents/2010/11/05/2010-28092/airworthiness-directives-mcdonnell-douglas-corporation-model-dc-10-10-dc-10-10f-dc-10-15-dc-10-30)

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