# Airworthiness Directives; Airbus Model A340-211, -212, -213, - 311, -312, and -313 Series Airplanes
> **Rule** · Final rule; request for comments. · Published 1999-01-08 · Effective 1999-01-25 · 64 FR 1108
## Document
- **Document number:** 99-51
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 64 FR 1108
- **Publication date:** 1999-01-08
- **Effective date:** 1999-01-25
- **FAA docket:** Docket No. 98-NM-297-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Airbus Model A340-211, -212, -213, -311, -312, and - 313 series airplanes. This action requires repetitive operational tests to ensure proper operation of the actuator of the secondary locks of the thrust reversers; and corrective actions, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent the inadvertent opening of a thrust reverser door in the event of failure of the primary and secondary locks of the thrust reverser. Such inadvertent opening could result in reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/01/08/99-51/airworthiness-directives-airbus-model-a340-211--212--213---311--312-and--313-series-airplanes)
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