# Proposed AD FAA-2016-8179: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-11-14
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 20, 2016, 81 FR 47084
- Comments due: September 6, 2016
- Became: [AD 2017-11-14](https://openairdocs.org/ad/2017-11-14)
- Docket: FAA-2016-8179 (https://www.regulations.gov/docket/FAA-2016-8179, where comments are filed)
- Project: 2015-NM-201-AD
- FR document: 2016-16906
- Official PDF: https://openairdocs.org/files/sha256/7a/8d/7a8d9e5d68af5e8f308613e8907a5aebe1de8b577294036b02845c5daa36d241 (from https://www.govinfo.gov/content/pkg/FR-2016-07-20/pdf/2016-16906.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/07/20/2016-16906/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0379A2EA973E9E5786257FF6004BB045.0001
- Page: https://openairdocs.org/proposed/FAA-2016-8179

## Summary

We propose to supersede Airworthiness Directive (AD) 2011-26- 03, which applies to certain The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. AD 2011-26-03 currently requires installing Teflon sleeving under the clamps of certain wire bundles routed along the fuel tank boundary structure, and cap sealing certain penetrating fasteners of the main and center fuel tanks. AD 2011-26-03 resulted from fuel system reviews conducted by the manufacturer. Since we issued AD 2011-26-03, we have received a report indicating that additional airplanes are affected by the identified unsafe condition. This proposed AD would add airplanes to the applicability. This AD would also add, for certain airplanes, detailed inspections of certain wire bundle clamps, certain Teflon sleeves, and certain fasteners; corrective actions if necessary; and installation of Teflon sleeves under certain wire bundle clamps. We are proposing this AD to prevent electrical arcing on the fueltank boundary structure or inside the fuel tanks, which could result in a fire or explosion.

## Notices in this docket

- Jul 20, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-16906, comments due Sep 6, 2016 (https://www.federalregister.gov/documents/2016/07/20/2016-16906/airworthiness-directives-the-boeing-company-airplanes)

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