AD 98-04-16
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
Loosening of the aileron tie-rod jam nuts in the chain-drive of the aileron system can cause a differential of aileron control between the pilot's and co-pilot's control wheels, leading to loss of aileron control and consequent loss of airplane control.
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Required Actions
Inspect the aileron tie-rod jam nuts for looseness within 100 hours time-in-service after the effective date, tighten any loose jam nuts prior to further flight, and install a locking sleeve on both ends of the aileron tie-rod in accordance with Pilatus Service Bulletin No. 27-001.
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Compliance Time
Within the next 100 hours time-in-service 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 101 through 169.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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