AD 2005-08-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | Aircraft Limited Models B4-PC11 | Airworthiness Directives; Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF Sailplanes |
Unsafe Condition
Cracks in the control-column support (part number 112.35.11.072), which could result in failure of the support and lead to loss of the primary flight control system.
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Required Actions
Inspect the control-column support for cracks initially within 12 calendar months after the last inspection under specified service bulletins. If cracks are found, replace the control-column support with a new one.
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Compliance Time
Initially within 12 calendar months after the last inspection under specified service bulletins.
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Affected Aircraft
Pilatus Aircraft Limited Models B4-PC11, B4-PC11A, and B4-PC11AF sailplanes, all serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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