STC SA672NW
FAA DRS lists SA672NW as Current · Reissued, held by Sierra Industries Inc, for Textron Aviation A188A. Recorded change: Installation of Hartzell HC-C3YF-1RF/F9587C-17S propeller on Continental IO-520-D engine. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Hartzell HC-C3YF-1RF/F9587C-17S propeller on Continental IO-520-D engine.
SA672NW 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: Textron Aviation A188A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Textron Aviation A188A model, serial range, and configuration?
- 02Which powerplant configuration, limits, instruments, and maintenance data apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
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Removal of C-125, Continental Engine and installation of C145, Continental Engine and Koppers Model F200 and F200-H propellers with 0073-E blades in all model GC-1B Swifts. Maximum engine power restricted to 125 hp at 2550 rpm and 25.8 in. Hg. MAP. Installation must be made per Preston Johnson Drawing No. PDJ-3.
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