SA5581SWOther aircraft modifications
Installation of ALCOR true-flow/ totalizer system.
FAA holder: Alcor LLC
Aircraft STC directory
Cessna Aircraft 172 Series STCs
The Jun 30, 2026 FAA DRS snapshot contains 13 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 172 Series. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
13
listed Current at snapshot
8
holder directories
6
modification categories
May 27, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications5
Propellers2
Landing gear and brakes2
Safety and emergency equipment2
Engine and powerplant1
Aircraft structures1
Recently revised 172 Series STCs
Showing the 13 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA3-11Propellers
Propeller installations - Two- position controllable, hub 2B-36C7, blades 78K-2 or 78K-4.
FAA holder: McCauley Propeller Systems
SA02138ATLanding gear and brakes
Installation of Lord Corporation nose wheel shimmy damper part number SE-1051-2/3.
FAA holder: Lord Corporation
SA02186AKPropellers
Installation of Hartzell HC-C2YR-1BF/F8477-4 or HC-C2YK-1BF/F8477-4 propeller and Hartzell model C1576 damper assembly.
FAA holder: Hartzell Propeller Inc
SA2226SOSafety and emergency equipment
Installation of Visual-Audio Warning System in accordance with Drawing Number WL 100, revised January 5, 1988, or later FAA approved revision.
FAA holder: Lawrence Warren K
SA1005SCOther aircraft modifications
Installation of airflow register into baggage compartment cover and insert a screened vent into empennage inspection plate.
FAA holder: Soros, Inc
SA00709LALanding gear and brakes
Installation of control wheel. Includes provisions only for a push-to-talk (PTT) switch. Separate FAA approval of PTT switch is required.
FAA holder: Trevor Burward-Hoy
SA01456NYOther aircraft modifications
Installation of Technisonic Industries Ltd OSAT-100 Airborne Position/Data Communicator.
FAA holder: Technisonic Industries Limited
SA02419ATEngine and powerplant
Manufacture of Composite Engine Cowlings.
FAA holder: D & E Aerospace Structure
SA09491SCSafety and emergency equipment
Installation of a low voltage warning system.
FAA holder: Stark's Aviation
SA01080LAOther aircraft modifications
Installation of Accessory Power Receptable in accordance with FAA Approved Master Drawing List, Document No. 172-APR-100, Rev IR, dtd 8/15/00 or later FAA approved revision.
FAA holder: Premier Aviation
SA00270WIAircraft structures
Installation of fiberglass replacement wing tips.
FAA holder: Aircraft Development Co