# Airworthiness Directives; Boeing Model 777-200 and -300 Series Airplanes
> **Rule** · Final rule. · Published 2005-08-22 · Effective 2005-09-26 · 70 FR 48850
## Document
- **Document number:** 05-16265
- **Category:** airworthiness
- **Manufacturer:** Boeing Model 777-200 and -300 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 48850
- **Publication date:** 2005-08-22
- **Effective date:** 2005-09-26
- **FAA docket:** Docket No. FAA-2005-20350
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 777-200 and -300 series airplanes. This AD requires inspecting the valve control and indication wire bundles of the fuel system of the wing rear spar for discrepancies, and corrective action if necessary. This AD is prompted by reports of six incidents of the wire bundles chafing against the rear spar stiffeners outside the fuel tank. We are issuing this AD to prevent this chafing, which could result in wire damage leading to a short circuit, subsequent ignition of flammable vapors, and possible uncontrollable fire during fueling or flight.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/08/22/05-16265/airworthiness-directives-boeing-model-777-200-and--300-series-airplanes)
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