AD 91-12-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 240 Series | Airworthiness Directives; GENERAL DYNAMICS Model 240, T-29, and C-131A (Military) Series Airplanes |
Unsafe Condition
Loss of the elevator hinge pins due to non-conforming dimensional limitations, cracked bearing plate assemblies, loose, chattering, dry, or seized bearings (P/N AN201KP10A).
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Required Actions
Within 50 hours time-in-service or 60 days after the effective date, remove the elevator and conduct a visual inspection of the hinge pins and bearings per SB 55-4. Replace non-conforming pins, bushings, or tapered bushings; replace cracked bearing plates, loose, chattering, dry, or seized bearings. Ensure proper mating of tapered bushing and pin surfaces during reinstallation, rework pins if needed per SB 55-4.
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Compliance Time
Within 50 hours time-in-service or 60 days after the effective date of this AD, whichever occurs first
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Affected Aircraft
General Dynamics (Convair) Model 240, T-29, and C-131A (Military) series airplanes, including all converted to turbopropeller power, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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