AD 94-26-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; British Aerospace Model Viscount 744, 745D, and 810 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; British Aerospace Model Viscount 744, 745D, and 810 Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; British Aerospace Model Viscount 744, 745D, and 810 Series Airplanes |
Unsafe Condition
Cracking in the chassis top strut support intercostal in the side bracing structure inside the wing due to metal fatigue, which could lead to failure of the chassis side bracing structure and reduced structural integrity.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a detailed visual inspection for cracks in the chassis side bracing structure and top strut support intercostals inside the wings, using specified PTL documents. Replace discrepant parts with new structures. Conduct eddy current inspection to determine material specification (L72/L73); replace if L72, no action if L73. Repeat inspections at intervals not exceeding 1,500 flight hours or 14 months, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 6 months after the effective date of this AD (February 3, 1995). Repeat inspections at intervals not to exceed 1,500 flight hours or 14 months, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
British Aerospace Model Viscount 744, 745D, and 810 series airplanes, certificated in any category.
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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