AD Amdt-39-10340
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna | Aircraft Company Models T303 | Airworthiness Directives; Cessna Aircraft Company Models T303, 310R, T310R, 335, 340A, 402B, 402C, 404, F406, 414, 414A, 421B, 421C, 425, and 441 Airplanes |
Unsafe Condition
Operating in severe icing conditions without clear procedures and limitations may lead to adverse flight control behavior or aircraft performance degradation.
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Required Actions
Revise the FAA-approved Airplane Flight Manual (AFM) to specify procedures prohibiting flight in severe icing conditions based on visual cues, limit or prohibit use of flight control devices during severe icing, and provide recognition cues and exit procedures for severe icing conditions.
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Compliance Time
Before further flight
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Affected Aircraft
Cessna Models T303, 310R, T310R, 335, 340A, 402B, 402C, 404, F406, 414, 414A, 421B, 421C, 425, and 441 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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