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Propellers

STC SA12225AC

FAA DRS lists SA12225AC as Current · Amended, held by High Cotton Aircraft Conversions LLC, for Pratt & Whitney Canada Corp PT6A-41, Pratt & Whitney Canada Corp PT6A-41AG, and Pratt & Whitney Canada Corp PT6A-42. Recorded change: This STC will incorporate P&W 1700 rpm propeller reduction gearbox on P&WC engines to allow Hartzell HC-B5MP-3( ), propeller installation. Snapshot dated June 30, 2026.

FAA-listed holder
High Cotton Aircraft Conversions LLC
Aircraft configurations
3
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

SA12225AC identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Pratt & Whitney Canada Corp PT6A-41, Pratt & Whitney Canada Corp PT6A-41AG, and Pratt & Whitney Canada Corp PT6A-42. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Pratt & Whitney Canada Corp PT6A-41E4EA
Pratt & Whitney Canada Corp PT6A-41AGE4EA
Pratt & Whitney Canada Corp PT6A-42E4EA

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