STC SA122NW
FAA DRS lists SA122NW as Current · Reissued, held by Mark Wiebe, for Cessna Aircraft 175, Cessna Aircraft 175A, and Cessna Aircraft 175B, and 2 more aircraft configurations. Recorded change: Installation of a Continental O-470 series engine, McCauley propeller, engine mount, cowling, baffles, and associated parts on the Cessna 175 and P172D series aircraft. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA122NW 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: Cessna Aircraft 175, Cessna Aircraft 175A, and Cessna Aircraft 175B, and 2 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related engine and powerplant STCs
Increase of the engine power of the PT6A-67F engine to 1600 SHP for takeoff power and 1550 SHP for maximum continuous power.
FAA holder: Momentum Aeronautics Holdings, LLC
FAA record reference
- STC number
- SA122NW
- Product
- Aircraft · Small Airplane
- Country
- United States
- Application date
- April 16, 1974
- Revision date
- October 24, 2012
- CFR references
- Part 3, Part 21