AD 57-08-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; VICKERS Model 744 and 745 Aircraft |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS Model 744 and 745 Aircraft |
Unsafe Condition
Horizontal stabilizer buckling incident due to insufficient strength of 20-gage Specification L.72 panels between Stations 34.36 and 99.13.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install placard stating 'TURBULENT AIR PENETRATION-165-KNOTS-FLAPS UP-LANDING GEAR UP' immediately. Install Vickers Modification D.1906 with 18-gage Specification L.73 skin panels between Stations 34.36 and 99.13 by August 31, 1957.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Effective immediately for placard installation; compliance with Vickers Modification D.1906 required by August 31, 1957.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount 744 and 745D aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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