AD 66-22-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes |
Unsafe Condition
Failure of access panels and cowls for the inverters could result in loss of access to the inverters during flight, leading to potential electrical system malfunctions.
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Required Actions
Install replacement access panels and cowls for the inverters in accordance with British Aircraft Corporation Ltd. Modification Bulletin No. D.3157 or later ARB-approved issue or an equivalent approved by the Chief, Aircraft Certification Staff, Europe, Africa, Middle East Region.
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Compliance Time
within 1,000 hours' time in service after the effective date of this AD
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount 744 and Viscount 745D Series Airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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