AD 93-24-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 340 | Airworthiness Directives; General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (military) Series Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 440 | Airworthiness Directives; General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (military) Series Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131B | Airworthiness Directives; General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (military) Series Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131D | Airworthiness Directives; General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (military) Series Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131E | Airworthiness Directives; General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (military) Series Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131F/R4Y-1 | Airworthiness Directives; General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (military) Series Airplanes |
Unsafe Condition
Loss of an elevator or rudder resulting from installation of a suspected unapproved part.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect elevator and rudder hinge pins, bushings, bearing plate assemblies, and bearings for wear, cracks, chattering, looseness, dryness, or binding; replace discrepant parts with serviceable ones prior to further flight. Perform hardness tests to ensure pins and bushings meet type design strength; replace those not meeting strength requirements. Reinstall components ensuring proper tapered surface mating. Repeat inspections every 2,000 hours time-in-service or 2 years. Report inspection results within 72 hours as specified.
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.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Dynamics (CONVAIR) Model 340, 440, and C-131B through C-131H (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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