# Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes
> **Rule** · Final rule. · Published 2007-01-25 · Effective 2007-03-01 · 72 FR 3359
## Document
- **Document number:** E7-898
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 72 FR 3359
- **Publication date:** 2007-01-25
- **Effective date:** 2007-03-01
- **FAA docket:** Docket No. FAA-2006-24691
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD requires testing the electrical resistance of the bond between the bulkhead fitting for the fuel feed line and the front spar of the left and right wings, inspecting an adjacent bonding jumper to make sure it is installed correctly, and performing corrective and other specified actions as applicable. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent arcing or sparking in the fuel tank in the event of a lightning strike, which could result in an uncontrolled fire or explosion.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/01/25/E7-898/airworthiness-directives-boeing-model-737-600--700--700c--800-and--900-series-airplanes)
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