AD 84-19-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; BRITISH AEROSPACE VISCOUNT Model 700 and 800 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; BRITISH AEROSPACE VISCOUNT Model 700 and 800 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; BRITISH AEROSPACE VISCOUNT Model 700 and 800 Series Airplanes |
Unsafe Condition
Failure of certain components in the hydraulic system, entry and cargo doors, or rudder mechanism.
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Required Actions
Inspect and replace hydraulic filter attachment bolts; inspect and modify entrance and cargo doors and bolt sleeves; replace rudder spigot and mounting block. Subsequent door inspections must be at intervals not exceeding 350 hours from the previous inspection.
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Compliance Time
Within 1000 hours time in service after the effective date for hydraulic filters; within 350 hours time in service after the effective date for door modifications; at or before 29,500 hours total time in service or within the next 500 hours after the effective date, whichever occurs later for rudder components.
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount 744, Viscount 745D, Viscount 810 models, pre-Modification D.2883 (Model 700) and pre-Modification FG.1553 (Model 800) with specified hydraulic filters.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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