AD 52-11-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 240 Series | CONVAIR Model 240 Aircraft |
Unsafe Condition
The engine nacelle lacks sufficient fire resistance due to aluminum alloy components in the engine cowl panels, oil cooler duct, and nacelle structure forward of the firewall.
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Required Actions
Install steel facings over certain aluminum alloy components of the engine cowl panels, oil cooler duct, and nacelle structure forward of the firewall as per Convair Service Bulletin No. 240-425, Revision 2.
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Compliance Time
not later than the first major engine overhaul after February 1, 1953
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Affected Aircraft
All Model 240 Aircraft
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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