# Proposed AD FAA-2007-27756: McDonnell Douglas Model DC-8-62, DC-8- 62F, DC-8-63, DC-8-63F, DC-8-72, DC-8-72F, and DC-8-73F Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-13-02
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 4, 2007, 72 FR 16287
- Comments due: May 21, 2007
- Became: [AD 2007-13-02](https://openairdocs.org/ad/2007-13-02)
- Docket: FAA-2007-27756 (https://www.regulations.gov/docket/FAA-2007-27756, where comments are filed)
- Project: 2006-NM-255-AD
- FR document: E7-6269
- Official PDF: https://openairdocs.org/files/sha256/0c/37/0c3755f1ea687d279ec5a37cc358ffe2d5d416f365f7150a631a723178301b4e (from https://www.govinfo.gov/content/pkg/FR-2007-04-04/pdf/E7-6269.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/04/04/E7-6269/airworthiness-directives-mcdonnell-douglas-model-dc-8-62-dc-8-62f-dc-8-63-dc-8-63f-dc-8-72-dc-8-72f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5922C0868EBC928F862572B3004B5FDB.0001
- Page: https://openairdocs.org/proposed/FAA-2007-27756

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all McDonnell Douglas Model DC-8-62, DC-8-62F, DC-8-63, DC-8-63F, DC-8-72, DC-8-72F, and DC-8-73F airplanes. This proposed AD would require deactivating certain components (the sump heater, scavenge valve, and scavenge pump) of the center wing fuel tank. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent certain conditions related to these components, which could lead to a possible ignition source in the fuel tank and a potential fire or explosion.

## Notices in this docket

- Apr 4, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-6269, comments due May 21, 2007 (https://www.federalregister.gov/documents/2007/04/04/E7-6269/airworthiness-directives-mcdonnell-douglas-model-dc-8-62-dc-8-62f-dc-8-63-dc-8-63f-dc-8-72-dc-8-72f)

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