AD 68-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; BRITISH AIRCRAFT Model 810 Series Airplanes |
Unsafe Condition
Cracking or distortion of forward landing flap assembly diaphragms P/Ns 80284-139/140, 80284-561/562, 80284-711/712, and attachment plates P/Ns 80284-131, 80284-565, 80284-709.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace No. 1 forward landing flap assembly diaphragms with P/Ns 81084-51/52 per BAC Modification Bulletin FG.2089 or equivalent. Visually inspect Nos. 2 and 3 diaphragms and plates for cracks per BAC Preliminary Technical Leaflet 136, repeating inspections every 600 landings until 20,000 landings, then every 450 landings. Replace cracked parts before next flight and continue inspections on replacements.
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Compliance Time
Within the next 125 landings after the effective date (October 12, 1968) or before accumulating 10,125 landings, whichever occurs later.
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount 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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