# Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Airbus Model A310 Series Airplanes
> **Rule** · Final rule. · Published 2006-01-12 · Effective 2006-02-16 · 71 FR 1949
## Document
- **Document number:** 06-182
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 71 FR 1949
- **Publication date:** 2006-01-12
- **Effective date:** 2006-02-16
- **FAA docket:** Docket No. FAA-2005-22053
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus airplanes, listed above. This AD requires installing two-stage relays in the electronics rack (90VU), and performing related corrective and investigative actions. This AD results from reports of inadvertent rudder trim activation when the autopilot is on. We are issuing this AD to prevent inadvertent trim activation when the autopilot is on and the slats are extended, which could result in rudder activation when the autopilot is turned off.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/01/12/06-182/airworthiness-directives-airbus-model-a300-b4-600-b4-600r-and-f4-600r-series-airplanes-and-model)
---
*AI Analytics · CC0 1.0*