AD 98-07-22
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | HS 748 Series 2A | Airworthiness Directives; British Aerospace Model HS 748 Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | HS 748 Series 2B | Airworthiness Directives; British Aerospace Model HS 748 Series Airplanes |
Unsafe Condition
Operation of the propellers in the beta range during flight could result in loss of airplane controllability, or engine overspeed with consequent loss of engine power.
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Required Actions
Revise the Airplane Flight Manual (AFM) Limitations Section to prohibit positioning the power levers below the flight idle stop during flight and add a statement of the consequences of such positioning.
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Compliance Time
Within 30 days after the effective date of this AD
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Affected Aircraft
All Model HS 748 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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