AD 75-16-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus Aircraft Limited | B4-PC11 | Airworthiness Directives; Pilatus Model B4-PC11 Gliders |
Unsafe Condition
Improper installation of aileron control connecting bolts and potential aileron jamming.
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Required Actions
Visually inspect the aileron control connecting bolts to ensure correct orientation per Pilatus B4-PC11 Operating Manual. Shorten bolts P/N 116.35.11.070 or replace with modified bolts per Service Bulletin No. 1003 or FAA-approved equivalent.
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Compliance Time
Within the next ten hours' time in service after the effective date of this AD and within 25 hours' time in service after the effective date of this AD.
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Affected Aircraft
Pilatus Aircraft Limited Model B4-PC11 gliders, serial numbers up to and including 159.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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