# Airworthiness Directives; McDonnell Douglas Model 717-200 Airplanes
> **Rule** · Final rule. · Published 2008-01-22 · Effective 2008-02-26 · 73 FR 3620
## Document
- **Document number:** E8-926
- **Category:** airworthiness
- **Manufacturer:** McDonnell Douglas Model 717-200
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 73 FR 3620
- **Publication date:** 2008-01-22
- **Effective date:** 2008-02-26
- **FAA docket:** Docket No. FAA-2007-29330
## Abstract

We are adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model 717-200 airplanes. This AD requires electrical bonding of the fill valves for the right and left main fuel tanks, the fill valve and pipe assembly for the center wing fuel tank, and the defuel shutoff valve. This AD results from a fuel system review conducted by the manufacturer. We are issuing this AD to prevent improper bonding of the fill valves and defuel shutoff valve for the main fuel tanks and center wing tank, which, in combination with a lightning strike, could result in a fuel tank explosion and consequent loss of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/01/22/E8-926/airworthiness-directives-mcdonnell-douglas-model-717-200-airplanes)
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