AD 58-09-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; VICKERS Model 700 Series Aircraft |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS Model 700 Series Aircraft |
Unsafe Condition
Failure of an oil pressure warning means could result in an unacceptable drop in oil pressure on any engine without immediate warning to the flight crew.
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Required Actions
Install an oil pressure warning means for each engine or a master warning means for all engines with provision for isolating individual warnings from the master warning, as per Civil Air regulations Part 4b, paragraph 4b.604(1). Acceptable methods include Vickers Modification Bulletin No. D.2270 or Capital Airlines Modification No. ME-A-58-84.
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Compliance Time
not later than December 31, 1958
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount 704 | Viscount 745D aircraft, all serial numbers.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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