STC SA4974NM
FAA DRS lists SA4974NM as Current · Amended, held by Radial Engines Ltd, for Boeing Airplane Wichita Division 75 (Army PT-13), Boeing Airplane Wichita Division A75 (Army PT-13A; -13B; -13C), and Boeing Airplane Wichita Division A75J1 (Army PT-18), and 6 more aircraft configurations. Recorded change: Installation of Jacobs Model R-755-9, -A2 or B2 engine with Hamilton Std 2B20/6135-15 propellers. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4974NM 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: Boeing Airplane Wichita Division 75 (Army PT-13), Boeing Airplane Wichita Division A75 (Army PT-13A; -13B; -13C), and Boeing Airplane Wichita Division A75J1 (Army PT-18), and 6 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related engine and powerplant STCs
FAA record reference
- STC number
- SA4974NM
- Product
- Aircraft · Single-Engine
- Country
- United States
- Application date
- March 14, 1989
- Revision date
- May 1, 2008
- CFR references
- Part 21