AD 2014-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna | Aircraft Company | Airworthiness Directives; Cessna Aircraft Company Airplanes |
Unsafe Condition
Accretion of ice on protected and unprotected surfaces during inadvertent icing encounters can result in large increases in stall speed and changes to handling characteristics, leading to aerodynamic stall or loss of control without stall warning.
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Required Actions
Install a placard prohibiting flight into known icing conditions. Install a placard increasing published approach airspeed by at least 17 mph (15 knots) in case of inadvertent icing encounters. Alternatively, ensure the supplemental airplane flight manual/airplane flight manual supplement (SAFM/AFMS) is inside the airplane and accessible to the pilot during operation.
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Compliance Time
Before further flight
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Affected Aircraft
Cessna Aircraft Company Models 310, 320, 340, 401, 402, 411, 414, and 421 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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