AD 98-07-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus Aircraft Limited | PC-12 | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes. |
| aircraft | Pilatus Aircraft Limited | PC-12/45 | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes. |
Unsafe Condition
Improper operation of the propeller de-icing controller caused by electromagnetic interference (EMI), which could result in ice build-up on the propeller with possible airplane controllability problems.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 9 calendar months after the effective date of this AD, identify the serial number of the affected propeller de-icing controller (P/N 968.29.13.223 or equivalent). Replace controllers with serial number U999 or lower without 'SB30-1' marking with P/N 500.50.12.109 (or equivalent). Do not install non-compliant controllers after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 9 calendar months after the effective date of this AD
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Affected Aircraft
Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 airplanes, serial numbers MSN 101 through MSN 153.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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