# Proposed AD 98-NM-284-AD: Airbus Model A319, A320, and A321 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-25-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 23, 1998, 63 FR 64654
- Comments due: December 23, 1998
- Became: [AD 99-25-10](https://openairdocs.org/ad/99-25-10)
- Docket: 98-NM-284-AD
- FR document: 98-31177
- Official PDF: https://openairdocs.org/files/sha256/4c/08/4c0835864154febe886825b07353a222cee03502e1b318d8cfbb26a6c6ad5571 (from https://www.govinfo.gov/content/pkg/FR-1998-11-23/pdf/98-31177.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/11/23/98-31177/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-284-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A319, A320, and A321 series airplanes. This proposal would require 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 proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed 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.

## Notices in this docket

- Nov 23, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-31177, comments due Dec 23, 1998 (https://www.federalregister.gov/documents/1998/11/23/98-31177/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes)

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