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Aircraft STC directory

Textron Aviation 172D STCs

The Jun 30, 2026 FAA DRS snapshot contains 52 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 172D. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

52
listed Current at snapshot
26
holder directories
9
modification categories
Jan 16, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications12Aircraft structures10Engine and powerplant8Avionics7Propellers6Cargo and special mission3Flight controls3Landing gear and brakes2Electrical systems1

Recorded holders

General Aviation Concepts4Stene Aviation Inc3Garmin International Inc2Curry Aviation LLC2Franklin Aircraft Engines Inc.2Sierra Industries Ltd.2Knots 2U Ltd.2Icarus Aero Inc.1Airglas Inc.1B & C Specialty Products Inc.1Rosen Sunvisor Systems LLC1Aero Twin Inc1F.Atlee Dodge Aircraft Services1Airfilm Camera Systems1Honeywell International Inc1Lake Central Air Services1uAvionix Corporation1Wipaire Inc1EAA Aviation Foundation1Evans & Bailey Holdings LLC1

Recently revised 172D STCs

Showing the 52 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