AD 98-25478
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | Aircraft Ltd | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
Unsafe Condition
Operating in severe icing conditions without clear procedures and limitations may lead to reduced aircraft control and potential loss of airworthiness due to ice accumulation.
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 specify procedures prohibiting flight in severe icing conditions, limit or prohibit use of flight control devices in such conditions, and provide 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
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 airplanes
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.