# Airworthiness Directives; Airbus Model A300 B2 and B4 Series Airplanes
> **Rule** · Final rule. · Published 2005-06-27 · Effective 2005-08-01 · 70 FR 36833
## Document
- **Document number:** 05-12505
- **Category:** airworthiness
- **Manufacturer:** Airbus Model A300 B2 and B4 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 36833
- **Publication date:** 2005-06-27
- **Effective date:** 2005-08-01
- **FAA docket:** Docket No. FAA-2005-20861
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300 B2 and B4 series airplanes. This AD requires modifying the wiring of the autopilot pitch torque limiter switch. This AD is prompted by several reports of pitch trim disconnect caused by insufficient length in the wiring to the pitch torque limiter lever. We are issuing this AD to prevent possible trim loss when the flightcrew tries to override the autopilot pitch control, which could result in uncontrolled flight of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/06/27/05-12505/airworthiness-directives-airbus-model-a300-b2-and-b4-series-airplanes)
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