# Airworthiness Directives; British Aerospace Model HS 748 Airplanes
> **Rule** · Final rule; request for comments. · Published 2006-02-09 · Effective 2006-02-24 · 71 FR 6667
## Document
- **Document number:** 06-1149
- **Category:** airworthiness
- **Manufacturer:** British Aerospace Model HS 748
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 71 FR 6667
- **Publication date:** 2006-02-09
- **Effective date:** 2006-02-24
- **FAA docket:** Docket No. FAA-2006-23799
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all British Aerospace Model HS 748 airplanes. This AD requires installing a baulking actuator system for the elevator gust lock; doing a functional test and an inspection of any previously installed baulking actuator system for wiring errors; doing repetitive inspections of the gust lock baulk lever for correct operation; and corrective action, if necessary. This AD results from incidents where an elevator gust lock re-engaged without input from the flightcrew, and may have caused a flight control restriction. We are issuing this AD to prevent uncommanded re- engagement of the elevator gust lock, which could result in restriction of the elevator's movement and consequent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/02/09/06-1149/airworthiness-directives-british-aerospace-model-hs-748-airplanes)
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