AD 61-26-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | A45 (Military T-34A, B-45) | Airworthiness Directives; Beech Model A45 (Converted T34A) Airplanes |
Unsafe Condition
Deteriorated flexible oil pickup hoses within the engine oil tank can allow air into the engine oil supply line, causing serious engine and propeller overspeeds due to improper propeller governing or engine damage from inadequate lubrication.
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Required Actions
Visually inspect the flexible oil pickup hose for deterioration by removing the oil tank inspection plate, disconnecting the hose at its upper end, and examining the corrugations for cracks or checks. Replace deteriorated hoses. Install rigid oil pickup lines (Beech Kit 45-327 or equivalent) to eliminate further special inspections, and ensure FAA-approved AFM Supplement dated August 14, 1961, is onboard for inverted flight prohibition.
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Compliance Time
within the next 25 hours' time in service after the effective date of this directive unless already accomplished within the last 100 hours' time in service and at intervals of not more than 100 hours' time in service
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Affected Aircraft
Beech Model A45 (Converted T34A) airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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