# Proposed AD FAA-2007-29173: Boeing Model 767 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-16-06
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 11, 2007, 72 FR 51725
- Comments due: October 26, 2007
- Became: [AD 2009-16-06](https://openairdocs.org/ad/2009-16-06)
- Docket: FAA-2007-29173 (https://www.regulations.gov/docket/FAA-2007-29173, where comments are filed)
- Project: 2006-NM-283-AD
- FR document: E7-17830
- Official PDF: https://openairdocs.org/files/sha256/55/de/55de6851dc22692e861d7b111accedaaff30ef6e3947ee1cb36bd97282be8fe6 (from https://www.govinfo.gov/content/pkg/FR-2007-09-11/pdf/E7-17830.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/09/11/E7-17830/airworthiness-directives-boeing-model-767-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B7EFEFDDCA624830862573530068DF42.0001
- Page: https://openairdocs.org/proposed/FAA-2007-29173

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Boeing Model 767 airplanes. This proposed AD would require installing an automatic shutoff system for the auxiliary fuel tank pump, revising the airplane flight manual (AFM) to advise the flight crew of certain operating restrictions for airplanes equipped with an automatic auxiliary fuel tank pump shutoff control, revising the Airworthiness Limitations (AWLs) section of certain maintenance documents to include new inspections of the automatic shutoff system for the auxiliary fuel tank boost pumps, and, for certain airplanes, installing a placard to alert the flight crew of certain fuel usage restrictions. This proposed AD results from a design review of the fuel tank systems. We are proposing this AD to prevent an overheat condition outside the pump explosion-resistance area that is open to the pump inlet, which could cause an ignition source for the fuel vapors in the fuel tank and result in fuel tank explosions and consequent loss of the airplane.

## Notices in this docket

- Sep 11, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-17830, comments due Oct 26, 2007 (https://www.federalregister.gov/documents/2007/09/11/E7-17830/airworthiness-directives-boeing-model-767-airplanes)

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