SA12407AKAircraft structures
Installation of a wing Strut Tiedown Kit No. SFF-MSTD.
FAA holder: Short Final Fabrication LLC
Aircraft STC directory
Maule Aerospace Technology M-4-220T STCs
The Jun 30, 2026 FAA DRS snapshot contains 22 selected supplemental type certificates with status Current whose public applicability data names the Maule Aerospace Technology M-4-220T. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
22
listed Current at snapshot
16
holder directories
7
modification categories
Jun 8, 2026
latest recorded revision
Modification demand surface
Other aircraft modifications10
Engine and powerplant7
Aircraft structures1
Landing gear and brakes1
Propellers1
Flight controls1
Cabin and interiors1
Recorded holders
Franklin Aircraft Engines Inc.1Burl's Aircraft Rebuild LLC1Airframes Alaska LLC1AMSAFE Inc.1Airwolf Filter Corporation1Brittain Industries, Inc1Silveraire LLC1Electronics International Inc.1Rosen Sunvisor Systems LLC1M-20 Oil Separators LLC1Insight Instrument Corporation1Electronics International1Quint Nicholas M1Aerospace Logic Inc.1Aircraft Components Inc1Aero Ski Manufacturing Co Inc1
Recently revised M-4-220T STCs
Showing the 22 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA637NWOther aircraft modifications
Installation of oil filter kit.
FAA holder: Franklin Aircraft Engines Inc.
SA02153AKLanding gear and brakes
Installation of Burl's Aircraft Rebuild Magnum I tail wheel Penetration ski.
FAA holder: Burl's Aircraft Rebuild LLC
SA02549AKOther aircraft modifications
Fabrication and installation of Lift Struts.
FAA holder: Airframes Alaska LLC
SA02503AK (PAGE 1)Other aircraft modifications
Installation of AMSAFE State of the Art Restraint System (SOARS) inflatable restraints.
FAA holder: AMSAFE Inc.
SA00433NYEngine and powerplant
Installation of Airwolf remote mounted engine oil filter model AFC-500 or AFC-600 on multi engine fixed wing light aircraft incorporating Franklin reciprocating engines of 450 horsepower or less.
FAA holder: Airwolf Filter Corporation
SA00353BOOther aircraft modifications
Installation of an auto lean system.
FAA holder: Flight Enhancements LLC
SA5670SWFlight controls
Installation of Brittain Industries Model BSS Flight Control System.
FAA holder: Brittain Industries, Inc
SA02391CHOther aircraft modifications
Installation of Custom Fiberglass Molding skis, Model 3000.
FAA holder: Silveraire LLC
SA02402SE PAGE 2Engine and powerplant
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C.
FAA holder: Electronics International Inc.
SA01251SEOther aircraft modifications
The manufacture of a Sunvisor System.
FAA holder: Rosen Sunvisor Systems LLC
SA02383AKOther aircraft modifications
Installation of offset single handle control yoke (left side, left offset and right side, right offset) with push-to-talk switch, in accordance with Trimmer Aviation, LLC, Drawing No. 2015101, Rev. A, dated May 29, 2011 or later FAA approved revision.
FAA holder: TrimmerAviation LLC
SA02033AT (PAGE 3)Engine and powerplant
Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW).
FAA holder: M-20 Oil Separators LLC
ST02391CHOther aircraft modifications
Installation of Custom Fiberglass Molding Skis, Model 3000,.
FAA holder: Custom Fiberglass Molding Inc.
SA1213NWEngine and powerplant
Installation of a Franklin 6AS-350-A or A1 engine, Rajay Model 325E10 turbocharger, McCauley 2A34C22-N/84S-4, -6, or -8; or a Hartzell HC-C2YF-1BF/F8459A-4 to -8 propeller, and associated systems.
FAA holder: Herning Benjamin N.
SA01860NY (2 OF 3)Engine and powerplant
Installation of Graphic Engine Monitors (GEM) Models GEM-610 and GEMINI 1200.
FAA holder: Insight Instrument Corporation
SA00680SE (6 OF 6Engine and powerplant
Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.
FAA holder: Electronics International
SA02034CHCabin and interiors
Modify cabin doors in accordance with the Blackhawk Aircraft Maintenance Maule Extended Cabin Door Opening Modification Manual, dated May 1, 2004, or later FAA approved revisions.
FAA holder: Quint Nicholas M
ST01700NY (2 OF 2)Engine and powerplant
Installation of the following Aerospace Logic aircraft instruments: EGT-100 Exhaust Gas Temperature Indicator, CHT-100 Cylnder Head Temperature INdicator, FL-100 Dual Fuel Level Indicator, FP-100 Fuel Pressure and Ammeter Indicator, OL-100 Oil Pressure and Temperature Indicator, and VA-100 Voltmeter and Ammeter Indicator.
FAA holder: Aerospace Logic Inc.
ST02547AT (2 OF 2)Other aircraft modifications
Installation of a voice alert system.
FAA holder: Aircraft Components Inc
SA130CHOther aircraft modifications
Installation of Model R2800 retractable skis.
FAA holder: Aero Ski Manufacturing Co Inc