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Aircraft STC directory

Textron Aviation 172K STCs

The Jun 30, 2026 FAA DRS snapshot contains 49 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 172K. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

49
listed Current at snapshot
26
holder directories
10
modification categories
Jan 16, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications11Aircraft structures9Propellers6Avionics6Engine and powerplant5Cargo and special mission4Flight controls4Landing gear and brakes2Electrical systems1Fuel systems1

Recorded holders

Curry Aviation LLC2General Aviation Concepts2Stene Aviation Inc2Sierra Industries Ltd.2Knots 2U Ltd.2Icarus Aero Inc.1Airglas Inc.1B & C Specialty Products Inc.1Rosen Sunvisor Systems LLC1Garmin International Inc1Aero Twin Inc1Airfilm Camera Systems1Franklin Aircraft Engines Inc.1Sky Sign Inc1Lake Central Air Services1uAvionix Corporation1Wipaire Inc1Del-Air1EAA Aviation Foundation1Evans & Bailey Holdings LLC1

Recently revised 172K STCs

Showing the 49 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA2375SW-DEngine and powerplant

Installation of Lycoming 0-320-D2G, 0-320-D2J, or 0-320-E2D (as modified by STC SE3692SW-D) engine rated for 160 h.p. take-off and 150 h.p. METO for models 1721, 172K, 172L, and 172M according to RAM Dwg. Rl 7201 Rev. F dated 12/9/86; or installation of Lycoming 0-320-D2G, 0-320-D2J, or 0-320-E2D (as modified by STC SE3692SW-D) engine rated for 160 h.p. take-off and 145 h.p. METO for models 172D, 172E, 172F, 172G, and 172H according to RAM Dwg. 17202, Rev. K dated 12/9/86; or installation of Lycoming 0-320-D2G, 0-320-D2J or 0-320-E2D (as modified by STC SE3692SW-D) engine (160 h.p., 2700 r.p.m) in model 172N according to RAM Dwg. 17203, Rev. L dated 12/9/86; or later FAA approved revision.

FAA holder: RAM Aircraft Limited Partnership

View record