AD 81-22-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 340 | Airworthiness Directives; GENERAL DYNAMICS Model 340 and 440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 440 | Airworthiness Directives; GENERAL DYNAMICS Model 340 and 440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131B | Airworthiness Directives; GENERAL DYNAMICS Model 340 and 440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131D | Airworthiness Directives; GENERAL DYNAMICS Model 340 and 440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131E | Airworthiness Directives; GENERAL DYNAMICS Model 340 and 440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131F/R4Y-1 | Airworthiness Directives; GENERAL DYNAMICS Model 340 and 440 Airplanes |
Unsafe Condition
Loosening and shearing of elevator flange to outer torque tube aluminum rivet fasteners could result in potential loss of elevator control.
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Required Actions
Conduct a visual inspection of both left and right elevator outer torque tube assembly P/N 340-3540304 attached to flange P/N 240-3540320 for loose or sheared rivets. Replace any loose or sheared rivets with interference fitting steel fasteners (minimum 160,000 psi tensile strength) prior to return to service. Inspections may be terminated after replacing all aluminum rivets with steel fasteners.
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Compliance Time
Within 250 hours' additional time in service after the effective date of this AD, unless previously accomplished within 450 hours' time in service prior to the effective date, and at intervals not to exceed 700 hours' time in service thereafter.
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Affected Aircraft
GENERAL DYNAMICS Model 340, 440, and military models eligible for civil use under Type Certificate 6A6, converted to turbopropeller 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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