AD Amdt-39-10331
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Harbin | Various | Airworthiness Directives; Harbin Aircraft Manufacturing Corporation Model Y12 IV Airplanes |
Unsafe Condition
Operating in severe icing conditions may lead to reduced aircraft performance, control difficulties, or structural damage due to insufficient procedures and limitations in the FAA-approved Airplane Flight Manual.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the FAA-approved Airplane Flight Manual (AFM) to include procedures prohibiting flight in severe icing conditions based on specific visual cues, limit or prohibit the use of flight control devices during severe icing, and provide crew recognition cues and exit procedures for severe icing conditions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Harbin Aircraft Manufacturing Corporation Model Y12 IV airplanes as specified in the AD
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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