# Airworthiness Directives; Airbus Model A319, A320, and A321 Series Airplanes
> **Rule** · Final rule. · Published 1999-12-08 · Effective 2000-01-12 · 64 FR 68623
## Document
- **Document number:** 99-31471
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 68623
- **Publication date:** 1999-12-08
- **Effective date:** 2000-01-12
- **FAA docket:** Docket No. 98-NM-284-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes, that requires a one-time inspection of the forward engine mount assembly of the left and right engines to verify that the part number on each assembly is correct; re-identification of the forward engine mount assembly; and follow-on actions, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent structural failure of the secondary load path of the forward engine mount, which, if combined with failure of the primary load path, could result in separation of the engine from the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/12/08/99-31471/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes)
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