# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule; request for comments. · Published 2016-04-05 · Effective 2016-04-20 · 81 FR 19470
## Document
- **Document number:** 2016-07230
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 81 FR 19470
- **Publication date:** 2016-04-05
- **Effective date:** 2016-04-20
- **FAA docket:** Docket No. FAA-2016-5036
## Abstract

We are adopting a new airworthiness directive (AD) for a certain The Boeing Company Model DC-9-83 (MD-83) airplane. This AD requires installing fuel level float and pressure switch in-line fuses, and doing applicable wiring changes, on the left, right, and center wing forward spars, forward auxiliary fuel tank, and aft auxiliary fuel tank. This AD was prompted by fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/04/05/2016-07230/airworthiness-directives-the-boeing-company-airplanes)
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