# Proposed AD 99-NM-331-AD: Airbus Model A319, A320, and A321 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-11-21
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 22, 1999, 64 FR 71696
- Comments due: January 21, 2000
- Became: [AD 2000-11-21](https://openairdocs.org/ad/2000-11-21)
- Docket: 99-NM-331-AD
- FR document: 99-33169
- Official PDF: https://openairdocs.org/files/sha256/89/33/89334ec931d413b38bc8757fbac82b4b5520c74aed752e967ae85e8449b19f48 (from https://www.govinfo.gov/content/pkg/FR-1999-12-22/pdf/99-33169.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/12/22/99-33169/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes
- Page: https://openairdocs.org/proposed/99-NM-331-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 general visual inspection to determine the part number and serial number of the spoiler servocontrol, and corrective action, 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 failure of the spoiler servocontrol piston rod, which could result in reduced controllability of the airplane.

## Notices in this docket

- Dec 22, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-33169, comments due Jan 21, 2000 (https://www.federalregister.gov/documents/1999/12/22/99-33169/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes)

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