STC SA231CE
FAA DRS lists SA231CE as Current · Reissued, held by Ontic Engineering and Manufacturing Inc., for Twin Commander Aircraft 560-F, Twin Commander Aircraft 680-F, and Twin Commander Aircraft 680-FL. Recorded change: Twin engine synchronizer. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
SA231CE 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: Twin Commander Aircraft 560-F, Twin Commander Aircraft 680-F, and Twin Commander Aircraft 680-FL. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related engine and powerplant STCs
Install Pratt & Whitney Canada PT6A-25C engine and Hartzell HC-B3TN-2/T10178(N)-8R propeller.
FAA holder: Sierra Industries Ltd.
View record
FAA record reference
- STC number
- SA231CE
- Product
- Aircraft · Small Multi-Engine
- Country
- United States
- Application date
- March 6, 1964
- Revision date
- April 30, 2007
- CFR references
- Part 3, Part 21