AD 64-02-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS Models 745D and 810 Series Aircraft |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; VICKERS Models 745D and 810 Series Aircraft |
Unsafe Condition
Fatigue cracks in the vertical flanges of the rib spar angles at Station 257.75 and associated stiffeners on the opposite face of the rib have been revealed during routine wing overhauls.
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Required Actions
Conduct initial inspection for cracks within specified timeframes based on accumulated hours. Depending on inspection results, replace or repair stiffeners and rib spar angles, and perform repetitive inspections at intervals not exceeding 6,500 or 12,000 hours' time in service as specified.
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Compliance Time
Within 250 hours' time in service on aircraft with 6,500 hours' time in service by the effective date, or before 6,750 hours' time in service on aircraft without 6,500 hours' by the effective date.
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount Models 745D and 810 Series aircraft as defined in PTL No. 241 Issue 3 and PTL No. 105 Issue 3.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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