STC SA4428SW
FAA DRS lists SA4428SW as Current · Amended, held by Air Plains Services Corporation, for Cessna Aircraft 172M, Cessna Aircraft 172R, and Cessna Aircraft 172P, and 11 more aircraft configurations. Recorded change: Installation of 180 Horsepower Lycoming engine and propeller combination. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of 180 Horsepower Lycoming engine and propeller combination.
SA4428SW 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 172M, Cessna Aircraft 172R, and Cessna Aircraft 172P, and 11 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Cessna Aircraft 172M and Cessna Aircraft 172R, and 12 more aircraft configurations 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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FAA holder: ASTECH Engineered Products Inc.
Installation of a new firewall forward engine mount and nose wheel assembly, Lycoming O-235-C2C model engine, Sensenich 72CK-0-54 model propeller, windshield/canopy assembly, and other related engine system installations on Univair (ERCO) model 415-D airplane with serial number 3502. Limited to installation on serial number 3502 ONLY.
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Modification of engine exhaust system for improved engine performance by installation of Power Flow Systems, Inc. Tuned Exhaust System per Master Drawing List, PFS-13740-00, Revision, IR, dated: 06/05/03 or Master Drawing List, PFS-13741-00, Revision, IR, dated: 11/26/03 and Installation Instructions Report, PFS-13750-00, Revision A, dated: 08/30/02 or Installation Instructions contained in Report PFS-13751-00, Revision, IR, dated: 11/26/03 or later FAA approved revision.
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