AD 2015-07-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | Aircraft Ltd | Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes |
Unsafe Condition
The potential for a spring on the air conditioning compressor clutch plate to shear the oil cooler inlet-hose due to the close routing of these parts without a protective cover.
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Required Actions
Install a cover assembly on the attachment points of the compressor following the Accomplishment Instructions in PILATUS PC-7 Service Bulletin No: 21-012, dated November 4, 2014.
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Compliance Time
Within 120 days after May 19, 2015
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Affected Aircraft
Pilatus Aircraft Ltd. Model PC-7 airplanes, all serial numbers, that have not incorporated the actions of any version of PILATUS PC-7 Service Bulletin No: 21-006, and are certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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