AD 76-19-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 744, 745D, and 810 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 744, 745D, and 810 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 744, 745D, and 810 Series Airplanes |
Unsafe Condition
Failure of the elevator spring servo tab control mechanism
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the spigot bracket, P/N 70120-367, attaching the elevator spring tab system bellcrank to the left elevator torque tube. Compliance timelines depend on prior compliance with AD 71-4-2 and bracket usage hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 100 hours time in service after the effective date or prior to 12,000 hours total time in service on the bracket, whichever is later (if not compliant with AD 71-4-2). For those compliant with AD 71-4-2, within the next 50 hours, 1,000 hours after AD 71-4-2 compliance, or prior to 12,000 hours, whichever is latest. Subsequent replacements must occur before 12,000 hours total time on the bracket.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount Model 744, 745D, and 810 Series airplanes, certificated in all categories.
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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