AD 70-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D, and 810 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D, and 810 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D, and 810 Series Airplanes |
Unsafe Condition
Failure of the fuselage pressure shell in the areas under the cockpit hood due to corrosion of skin panels and water saturation of wood packing strips around window frames.
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Required Actions
Inspect exposed skin panels for corrosion and wood packing strips for water saturation. If corrosion extends beyond exposed areas or wood is saturated, remove cockpit hood assembly, rework and reprotect fuselage skin, and replace wood window packing strips. Compliance with rework may discontinue repetitive inspections.
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Compliance Time
Within the next 90 days after the effective date (February 22, 1970) for airplanes manufactured before February 28, 1959. For those manufactured on or after February 28, 1959, within the next 90 days after the effective date or within eight years after manufacture, whichever is later, and every 12 months thereafter. Rework must be done within 11 years after manufacture for newer airplanes.
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount Models 744, 745D, and 810 series airplanes.
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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