AD 64-20-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; VICKERS Model 810 Series Aircraft |
Unsafe Condition
Fatigue cracking has occurred in the rib structure of the inboard rib at Station 96 of the inboard nacelles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct dye penetrant or FAA approved equivalent inspection for cracks in the rib reinforcing plate and rib web plate within 275 landings after the effective date. If no cracks are found, reinspect every 500 landings until Modification FG.1960 Part 'B' is accomplished. If cracks are found, incorporate specific repairs or modifications as appropriate and follow reinspection schedules until Modification FG.1960 Part 'C' is done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 275 landings after the effective date of this AD
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount 810 Series Aircraft
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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