# Proposed AD FAA-2004-18784: Boeing Model 747-400, -400D, -400F; 767-200, -300, -300F; and 777-200 and -300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-13-20
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 6, 2004, 69 FR 47802
- Comments due: September 20, 2004
- Became: [AD 2005-13-20](https://openairdocs.org/ad/2005-13-20)
- Docket: FAA-2004-18784 (https://www.regulations.gov/docket/FAA-2004-18784, where comments are filed)
- Project: 2004-NM-59-AD
- FR document: 04-17985
- Official PDF: https://openairdocs.org/files/sha256/78/9c/789c1dd1ca6f7d6a5532ff475b3de382b5d6e286c7d4f65ff5ac9b0ce41f246f (from https://www.govinfo.gov/content/pkg/FR-2004-08-06/pdf/04-17985.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/08/06/04-17985/airworthiness-directives-boeing-model-747-400--400d--400f-767-200--300--300f-and-777-200-and--300
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/285B5C8E727228D886256EE80053C5E5.0001
- Page: https://openairdocs.org/proposed/FAA-2004-18784

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-400, -400D, -400F; 767-200, -300, -300F; and 777-200 and -300 series airplanes. This proposed AD would require installing a jumper wire between the wiring of the fire extinguisher switch and the fuel shutoff switch for each engine, and other specified actions. This proposed AD is prompted by a certain combination of conditions, which could cause the fuel spar shutoff valves to remain partially open. We are proposing this AD to prevent a latent open circuit that could leave the fuel spar shutoff valve in a partially open position when the engine fire switch is activated, which could result in fuel from the engine feeding an uncontrolled fire in the engine or the strut.

## Notices in this docket

- Aug 6, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-17985, comments due Sep 20, 2004 (https://www.federalregister.gov/documents/2004/08/06/04-17985/airworthiness-directives-boeing-model-747-400--400d--400f-767-200--300--300f-and-777-200-and--300)

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