# Proposed AD 99-NM-339-AD: Airbus Model A319, A320, and A321 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-04-06
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 7, 1999, 64 FR 68300
- Comments due: January 6, 2000
- Became: [AD 2000-04-06](https://openairdocs.org/ad/2000-04-06)
- Docket: 99-NM-339-AD
- FR document: 99-31678
- Official PDF: https://openairdocs.org/files/sha256/a4/56/a4569b0f98a9211aa210a05417dfff94f099e1e91a651c484f698d9ce879bb47 (from https://www.govinfo.gov/content/pkg/FR-1999-12-07/pdf/99-31678.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/12/07/99-31678/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes
- Page: https://openairdocs.org/proposed/99-NM-339-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 modification of the forward and aft evacuation slide systems by replacing the Velcro restraints for the support logs with frangible link restraints. 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 the ingestion of sill support-log material into the aspirator of the escape slide, which could result in failure of the escape slide to inflate.

## Notices in this docket

- Dec 7, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-31678, comments due Jan 6, 2000 (https://www.federalregister.gov/documents/1999/12/07/99-31678/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes)

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