# Airworthiness Directives; Airbus Model A330-200, A330-300, A340-200, and A340-300 Series Airplanes; and Model A340-541 and -642 Airplanes
> **Rule** · Final rule; request for comments. · Published 2005-08-26 · Effective 2005-09-12 · 70 FR 50166
## Document
- **Document number:** 05-16896
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 70 FR 50166
- **Publication date:** 2005-08-26
- **Effective date:** 2005-09-12
- **FAA docket:** Docket No. FAA-2005-22196
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A330-200, A330-300, A340-200, and A340-300 series airplanes; and Model A340-541 and -642 airplanes. This AD requires repetitively resetting the display units (DUs) for the electronic instrument system (EIS) either by switching them off and back on again or by performing a complete electrical shutdown of the airplane. This AD results from an incident in which all of the DUs for the EIS went blank simultaneously during flight. We are issuing this AD to prevent automatic reset of the DUs for the EIS during flight and consequent loss of data from the DUs, which could reduce the ability of the flightcrew to control the airplane during adverse flight conditions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/08/26/05-16896/airworthiness-directives-airbus-model-a330-200-a330-300-a340-200-and-a340-300-series-airplanes-and)
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