# Airworthiness Directives; Airbus Model A319, A320, and A321 Series Airplanes
> **Rule** · Final rule. · Published 2001-08-06 · Effective 2001-09-10 · 66 FR 40866
## Document
- **Document number:** 01-19250
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 40866
- **Publication date:** 2001-08-06
- **Effective date:** 2001-09-10
- **FAA docket:** Docket No. 2000-NM-383-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes, that requires modifications of route segregation between the low voltage wire bundles of the fuel quantity indicating system and the high voltage wire bundles of the ground power control unit. This amendment is prompted by mandatory continuing airworthiness information from a civil airworthiness authority. The actions specified by this AD are intended to prevent injection of 115 volt alternating current (VAC) into 28 volt direct current (VDC) wire bundles, which could result in high voltage conditions within the fuel tank and the potential for damage to equipment, electrical arcing, and fuel vapor ignition on the ground. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/08/06/01-19250/airworthiness-directives-airbus-model-a319-a320-and-a321-series-airplanes)
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