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STC Holder: High Cotton Aircraft Conversions LLC

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No. of STCs: 1

STC Holder:
High Cotton Aircraft Conversions LLC
6776 E Highland Dr. Jonesboro, AR 72401
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STC No.: SA12225ACStatus: CurrentApp Date: 12/06/2023Rev Date: 12/09/2025
Description: This STC will incorporate P&W 1700 rpm propeller reduction gearbox on P&WC engines to allow Hartzell HC-B5MP-3( ), propeller installation
TC Nos.: E4EA
Models:
Pratt & Whitney Canada Corp.PT6A-41, PT6A-41AG, PT6A-42
ACO: AIR-760: Central Certification Branch FTW