# Airworthiness Directives; Airbus Defense and Space S.A. (Formerly Known as Construcciones Aeronauticas, S.A.) Airplanes
> **Rule** · Final rule. · Published 2016-04-11 · Effective 2016-05-16 · 81 FR 21240
## Document
- **Document number:** 2016-07572
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 21240
- **Publication date:** 2016-04-11
- **Effective date:** 2016-05-16
- **FAA docket:** Docket No. FAA-2015-4809
## Abstract

We are adopting a new airworthiness directive (AD) for certain Airbus Defense and Space S.A. Model CN-235-200 and CN-235-300 airplanes. This AD was prompted by reports of false engine fire warning events, which consequently led to engine in-flight shutdowns. This AD requires modification of the location and routing of the engine fire detection system. We are issuing this AD to prevent unnecessary engine in-flight shutdown, which could result in reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/04/11/2016-07572/airworthiness-directives-airbus-defense-and-space-sa-formerly-known-as-construcciones-aeronauticas)
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