AD 93-21-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 240 Series | Airworthiness Directives; GENERAL DYNAMICS Model 240, T-29A through D, and C-131A (military) Series Airplanes |
Unsafe Condition
Loss of an elevator or rudder resulting from the installation of a suspected unapproved part (SUP) due to worn hinge pins and bushings, cracked bearing plate assemblies, or discrepant bearings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 400 hours time-in-service or 180 days, inspect elevator and rudder hinge pins, bushings, bearing plates, and bearings for wear, cracks, chattering, looseness, dryness, or binding. Replace worn pins/bushings, cracked bearing plates, or discrepant bearings with serviceable parts. Perform hardness tests on pins and bushings to ensure they meet type design strength unless marked by Convair. Reinstall components ensuring proper tapered surface mating. Repeat inspections every 2,000 hours or 2 years. Report results within 48 hours. Prohibit installation of untested or non-Convair marked pins/bushings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 400 hours time-in-service or 180 days after the effective date of this AD, whichever occurs first. Repeat requirements every 2,000 hours time-in-service or 2 years, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model 240, T-29A through D, and C-131A (military) series airplanes, including those modified for turbo-propeller power.
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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