# Airworthiness Directives; BAE Systems (Operations) Limited Airplanes
> **Rule** · Final rule. · Published 2022-11-30 · Effective 2023-01-04 · 87 FR 73446
## Document
- **Document number:** 2022-26083
- **Category:** airworthiness
- **Manufacturer:** BAE Systems (Operations) Limited
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 73446
- **Publication date:** 2022-11-30
- **Effective date:** 2023-01-04
- **FAA docket:** Docket No. FAA-2022-1053
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146 series airplanes. This AD was prompted by a finding that when the autopilot is engaged, the architecture of the autopilot system does not automatically disconnect the autopilot in response to pilot application of a pitch input or when the electric pitch trim switch on either pilot control wheel is operated. This AD requires modifying the autopilot engagement circuit. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/11/30/2022-26083/airworthiness-directives-bae-systems-operations-limited-airplanes)
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