SA5581SWOther aircraft modifications
Installation of ALCOR true-flow/ totalizer system.
FAA holder: Alcor LLC
Aircraft STC directory
Cessna Aircraft 120 STCs
The Jun 30, 2026 FAA DRS snapshot contains 36 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 120. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
36
listed Current at snapshot
24
holder directories
12
modification categories
May 27, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications15
Engine and powerplant7
Landing gear and brakes3
Electrical systems2
Aircraft structures2
Avionics1
Fuel systems1
Flight controls1
Propellers1
Cabin and interiors1
Aircraft connectivity1
Aircraft performance1
Recorded holders
Kenneth E. Morris and Lorraine R. Morris3John P. Warren3ABI, LLC2Steve's Aircraft2Lowe Aviation Aircraft Maintenance2Alcor LLC1Acron Aviation Inc.1F.Atlee Dodge Aircraft Services1Kaman Corporation Aircraft Wheel and Brake LLC1Concorde Battery Corporation1Silveraire LLC1Hartzell Engine Technologies, LLC1Precise Flight Inc1Northern Airframes LLC1Latitude Technologies Corporation1BAS Inc1Woodstock Aircraft Services Inc.1Garmin AT Inc.1Electronics International1Micro AeroDynamics Inc1
Recently revised 120 STCs
Showing the 36 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA02738CH (PAGE 5)Avionics
Installation of L-3 Communications Avionics Systems.
FAA holder: Acron Aviation Inc.
SA3-423Other aircraft modifications
Installation of CT-3000 tail ski on airplanes equipped with Scott 3200 or 3400 tail wheels.
FAA holder: F.Atlee Dodge Aircraft Services
SA01233SELanding gear and brakes
Fabrication and installation of Alaskan Bushwheel LLC tail wheel and fork assembly.
FAA holder: ABI, LLC
SA13GLLanding gear and brakes
Installation of Cleveland wheel No. 40-97A and brake No. 30-63A.
FAA holder: Kaman Corporation Aircraft Wheel & Brake LLC
SA01139CHOther aircraft modifications
Installation of W.D. Davis V.I.C.C.L. Cessna Cowl Latch.
FAA holder: Kenneth E. Morris and Lorraine R. Morris
SA01814CHOther aircraft modifications
Replace Cessna S-43 fabric attachment clips with AD42ABSLF rivets in accordance with the Instructions and Procedures as listed on AML No. SA01814CH, or later FAA Approved revisions.
FAA holder: Kenneth E. Morris and Lorraine R. Morris
SA4-581Engine and powerplant
Installation of a Lycoming O-290-D engine and Sensenich M76AM-2 or Sensenich CS3FM4 propeller.
FAA holder: John P. Warren
SA4-640Engine and powerplant
Installation of a Lycoming O-290-D2 engine and Sensenich M74DM propeller.
FAA holder: John P. Warren
SA4-95Engine and powerplant
Installation of a Lycoming O-235-C1 or O-235-C2C engine.
FAA holder: John P. Warren
SA01118WIOther aircraft modifications
Installation of the Concorde FLA or VRSLA RG series batteries.
FAA holder: Concorde Battery Corporation
SA02566CHLanding gear and brakes
Installation of the Custom Fiberglass Molding, Inc. (CFMI) Model 1500, 2250-001, or 2250-002 Aircraft Main Landing Gear Skis.
FAA holder: Silveraire LLC
SA01768SEOther aircraft modifications
Installation of an oil cooler system.
FAA holder: Steve's Aircraft
SA10921SCElectrical systems
Installation of an alternator and regulator as a replacement to existing OEM generators and mechanical voltage regulators.
FAA holder: Hartzell Engine Technologies, LLC
SA2162NMOther aircraft modifications
Installation of the Precise Flight stand-by vacuum system (SVS).
FAA holder: Precise Flight Inc
SA02428AKOther aircraft modifications
Installation of a hydraulically actuated ski drag assembly.
FAA holder: Northern Airframes LLC
SA01765SEOther aircraft modifications
Installation of Alaskan Bushwheel TSO-C26d wheels, Part Number (P/N) ABI-1010.
FAA holder: ABI, LLC
SA03148NY (PAGE 1)Other aircraft modifications
The installation of the Latitude Technologies Corporation S100 Tracking System.
FAA holder: Latitude Technologies Corporation
SA3815NMAircraft structures
Installation of BAS tail pull handle in the aft fuselage.
FAA holder: BAS Inc
SA648NEEngine and powerplant
Installation of Cessna 150 exhaust systems.
FAA holder: Kenneth E. Morris and Lorraine R. Morris
SA02283AKElectrical systems
Installation of a 30 amp permanent magnet generator system.
FAA holder: Endowment Enterprises LLC
SA1-259Flight controls
Conversion of aileron covering from fabric to aclad panels.
FAA holder: Skycraft Design Inc
SA1-436Aircraft structures
Leading edge landing lights in left-hand wing.
FAA holder: Woodstock Aircraft Services Inc.
SA00072NYPropellers
Installation of a Sensenich model 72CK fixed-pitch metal propeller.
FAA holder: AVPROP Ltd.
SA03170ATCabin and interiors
Installation of two (2) additional seat belt attach brackets on the cabin floor to provide for individual pilot/copilot restraint (instead of a single seat belt for both occupants).
FAA holder: Lowe Aviation Aircraft Maintenance
SA01487SE (5 OF 5Aircraft connectivity
Installation of a GDL 69 or GDL 69A XM Satellite Receiver in accordance with Garmin Supplemental Type Certificate Master Data List, P/N 005-C0217-00, Revision A, dated December 20, 2004, or later FAA approved revision.
FAA holder: Garmin AT Inc.
SA547EAEngine and powerplant
Installation of Continental O-200-A engine and McCauley 1A100/MCM6952 or 1A101/DCM6952 or Sensenich 69CK propeller.
FAA holder: Thompson's Air
SA00680SE (4 OF 6Engine and powerplant
Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.
FAA holder: Electronics International
SA01447SEOther aircraft modifications
Installation of vortex generators on the wings and horizontal tail surfaces of the above model aircraft in accordance with Drawing Package MA2201, Revision IR, dated July 28, 2004, and Installation Manual MA2202, Revision IR, dated August 16, 2004, or later FAA approved revision to either of these documents.
FAA holder: Micro AeroDynamics Inc
SA691GLOther aircraft modifications
Superseded by STC SA01944CH. Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index.
FAA holder: EAA Aviation Foundation
SA4-394Other aircraft modifications
Installation of George M. Adams DGA-2000 wheels and Bodell Mfg Model BMI-252 brakes.
FAA holder: Skybound Manufacturing Inc.
SA800NEEngine and powerplant
Installation of alternator system on Cessna 120, 140, and 140A aircraft with Continental engine C-85-12, -14 and C-90-12, -14; and Cessna 120, 140 and 140A with Continental O-200-A(when STC SA547EA is installed).
FAA holder: Barnstormers Aviation
SA1049GLOther aircraft modifications
Surrendered and incorporated into STC SA00478CH.
FAA holder: Cooper Aviation Supply Company, Inc.
SA02482ATAircraft performance
Installation of airplane weight restriction placard.
FAA holder: Lowe Aviation Aircraft Maintenance
SA71GLOther aircraft modifications
Installation of air filters.
FAA holder: Brackett Aero Filters Inc.