# Airworthiness Directives; The Boeing Company Model MD-90-30 Airplanes
> **Rule** · Final rule. · Published 2011-02-07 · Effective 2011-03-14 · 76 FR 6535
## Document
- **Document number:** 2011-2428
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company Model MD-90-30
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 76 FR 6535
- **Publication date:** 2011-02-07
- **Effective date:** 2011-03-14
- **FAA docket:** Docket No. FAA-2010-1043
## Abstract

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires installing new fire handle shutoff system wiring. This AD was prompted by a possible latent failure in the fire handle shutoff relay circuit due to a lack of separation between engine wires. We are issuing this AD to minimize the possibility of a multiple engine shutdown due to single fire handle activation.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/02/07/2011-2428/airworthiness-directives-the-boeing-company-model-md-90-30-airplanes)
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