AD 96-03-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 240 Series | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 340 | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 440 | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131B | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131D | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131E | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | Military C-131F/R4Y-1 | Airworthiness Directives; General Dynamics Model 240 Series Airplanes, Including Model T-29 (Military) Airplanes; Model 340 and 440 Series Airplanes; and Model C-131 (Military) Airplanes |
Unsafe Condition
Ice contaminated tailplane stall (ICTS) can occur during or following flight in icing conditions if flap settings are increased, leading to adverse elevator control and potential uncontrollable descent.
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Required Actions
Revise the Airplane Flight Manual (AFM) Limitations Section to include flap limitation procedures within 30 days after the effective date. The procedures must limit flap selection to a maximum of 30 degrees under specified icing conditions and temperatures.
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Compliance Time
Within 30 days after the effective date of this AD
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Affected Aircraft
All Model 240 series airplanes, including Model T-29 (military); Model 340 and 440 series; Model C-131 (military); and turbo-propeller modified models (Model 580, 600, 640 series), certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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