AD 83-01-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 340 | Airworthiness Directives; GENERAL DYNAMICS (Convair) Models 340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 440 | Airworthiness Directives; GENERAL DYNAMICS (Convair) Models 340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131B | Airworthiness Directives; GENERAL DYNAMICS (Convair) Models 340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131D | Airworthiness Directives; GENERAL DYNAMICS (Convair) Models 340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131E | Airworthiness Directives; GENERAL DYNAMICS (Convair) Models 340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131F/R4Y-1 | Airworthiness Directives; GENERAL DYNAMICS (Convair) Models 340/440 Airplanes |
Unsafe Condition
Fracture of the nose landing gear (NLG) axle caused by fatigue cracks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct an ultrasonic inspection of each NLG axle within 150 hours time in service after the effective date or prior to 10,150 hours time in service, whichever is later. Repeat inspections at intervals not exceeding 1200 hours time in service. A magnetic particle inspection must be done within 12,000 hours time in service and thereafter every 12,000 hours. Replace axle if cracks are found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 150 hours time in service after the effective date of this AD, or prior to the accumulation of 10,150 hours time in service, whichever occurs later
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Models 340/440, military models eligible or to be made eligible for civil use under Type Certificate 6A6, and all such model airplanes 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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