# Airworthiness Directives; Airbus Model A319, A320, and A321 Series Airplanes
> **Rule** · Final rule. · Published 2000-02-07 · Effective 2000-03-13 · 65 FR 5739
## Document
- **Document number:** 00-2403
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 65 FR 5739
- **Publication date:** 2000-02-07
- **Effective date:** 2000-03-13
- **FAA docket:** Docket No. 99-NM-254-AD
## Abstract

This amendment supersedes an existing airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes, that currently requires relocation of the engine/master 1 relay from relay box 103VU to shelf 95VU in the avionics bay. This amendment continues to require the relocation using new electrical contacts, and, for certain airplanes, adds a requirement to replace certain contacts installed in shelf 95VU during relocation of the relay with new contacts. 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 a simultaneous cutoff of the fuel supply to both engines, which could result in a loss of engine power and consequent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/02/07/00-2403/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes)
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