AD 68-07-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23-250 (Navy UO-1) | Airworthiness Directives; Piper PA-23-250 Airplanes |
Unsafe Condition
Cracks in the engine mount tubes in specific areas, including the lower forward lateral tube, three-tube horizontal diagonal truss welds, and lower left horizontal fore and aft tube, which could lead to engine separation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect engine mount tubes for cracks in specified areas. Replace or repair cracked mounts with new part number 31215 or per FAR 43, followed by magnetic particle inspection. Continue inspections at intervals not exceeding 100 hours in service.
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Compliance Time
Within the next 50 hours in service after the effective date of this AD unless already accomplished within the last 50 hours in service and thereafter at intervals not to exceed 100 hours in service from the last inspection.
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Affected Aircraft
Piper PA-23-250 (Navy UO-1) airplanes, serial numbers 27-2505 and up, with engine mount part number 31215.
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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