AD Amdt-39-10347
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | DC-3 and DC-4 | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
Unsafe Condition
Operating in severe icing conditions may result in reduced aircraft performance, control difficulties, or structural damage due to insufficient procedures and limitations in the Airplane Flight Manual.
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Required Actions
Revise the Airplane Flight Manual (AFM) to specify procedures prohibiting flight in severe icing conditions based on visual cues, limit or prohibit the use of flight control devices during such conditions, 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
McDonnell Douglas Model DC-3 and DC-4 series airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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