# Proposed AD 98-NM-75-AD: Airbus Model A319 and A321-100 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-13-18
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 21, 1998, 63 FR 19678
- Comments due: May 21, 1998
- Became: [AD 98-13-18](https://openairdocs.org/ad/98-13-18)
- Docket: 98-NM-75-AD
- FR document: 98-10476
- Official PDF: https://openairdocs.org/files/sha256/d0/66/d0667dad1be381e49829b0663c6853e54d3a39186d668a7a15e6e5821ee51cb2 (from https://www.govinfo.gov/content/pkg/FR-1998-04-21/pdf/98-10476.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/04/21/98-10476/airworthiness-directives-airbus-model-a319-and-a321-100-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-75-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A319 and A321-100 series airplanes. This proposal would require adjustment of the landing gear unlocked-stop screw; replacement of the shear pins in the reduction gear box and the landing gear pulley assembly with new or serviceable shear pins; a one-time inspection to detect discrepancies of the landing gear cut-out valve; an operational test of the uplock mechanical control system; and follow-on corrective 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 non-extension of one or more landing gears, consequent damage to the airplane structure, and possible injury to passengers and crewmembers.

## Notices in this docket

- Apr 21, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-10476, comments due May 21, 1998 (https://www.federalregister.gov/documents/1998/04/21/98-10476/airworthiness-directives-airbus-model-a319-and-a321-100-series-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.