SA2858SOOther aircraft modifications
Installation of a FLIR airborne surveilance system.
FAA holder: Air USA Inc
Aircraft STC directory
Cessna Aircraft 337H STCs
The Jun 30, 2026 FAA DRS snapshot contains 24 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 337H. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
24
listed Current at snapshot
14
holder directories
9
modification categories
Mar 31, 2020
latest recorded revision
Modification demand surface
Other aircraft modifications8
Fuel systems5
Engine and powerplant3
Aircraft structures3
Flight controls1
Cabin and interiors1
Avionics1
Propellers1
Cargo and special mission1
Recently revised 337H STCs
Showing the 24 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA32RMOther aircraft modifications
Installation of electrically driven freon air-conditioning system.
FAA holder: Air Comm Corporation
SA01114CHOther aircraft modifications
Installation of P2 Incorporated 6600 Audio Advisory system.
FAA holder: P2 Incorporated
SA1273GLCabin and interiors
Install SAF-T-STOP auxiliary seat stop device.
FAA holder: Glen A Florence, Aero Technologies, Inc.
SA00243BO (3 OF 5)Avionics
Installation of Centurion Consulting, Inc. GPS Steering Assist Module (SAM) with roll steering (p/n 0025-5100), or without roll steering (p/n 0025-5200).
FAA holder: Icarus Avionics, LLC
SA02094SEOther aircraft modifications
Installation of a CO Guardian 452R Carbon Monoxide Detector per AeroMech, Inc., Master Data List document AM0243-DL02-00, Revision A, dated December 8, 2010, or latest FAA-approved revision.
FAA holder: AirScan Inc
SA02110CH (PAGE 2)Other aircraft modifications
Installation of a Time Trac Data Recorder.
FAA holder: P2 Incorporated
SA03618ATEngine and powerplant
Installation of Teledyne Continental Motors Model IO-550-N engines, Hartzell Model PHC-G3YF-2UF/F7663D-2R propeller front, Hartzell Model PHC-I3YF-2AL/FLC7663DF-2 propeller rear, front and back AirScan engine installations and 5120 pounds Maximum Gross Weight.
FAA holder: AirScan Inc
SA00272WIOther aircraft modifications
Replacement of hydraulic system pressure switch.
FAA holder: APPH Wichita Inc.
SA638GLFuel systems
Installation of a Shadin Co. 910516 fuel flow indicating system.
FAA holder: Shadin Avionics
SA02460ATPropellers
Replace propellers with MT-Propeller Company model MTV-12 propellers per Coastal Planes installation manual. No intermixing of propellers is allowed.
FAA holder: MT-Propeller USA Inc.
SA02307ATAircraft structures
Installation of wing tip extensions in accordance with Aviation Enterprises (AE) Installation Instructions, Revision D, dated January 13, 2000, or later FAA approved revisions. Installation of wing aerodynamic fences in accordance with AE Drawing No. SKM-FTII, Revision C, dated August 17, or later FAA approved revisions.
FAA holder: Aviation Enterprises
SA02308ATFuel systems
Installation of wing tip extension fuel tanks in accordance with Aviation Enterprises (AE) Installation Instructions, Revision D, dated January 13, 2000, or later FAA approved revisions. Installation of wing aerodynamic fences in accordance with AE Drawing No. SKM-FTII, Revision C, dated August 17, 1999, or later FAA approved revisions.
FAA holder: Aviation Enterprises
SA02217AK (3 OF 5Other aircraft modifications
Installation of Garmin AT Model GDL90 UAT Data Link System, in accordance with Garmin AT, Inc., GDL 90 UAT Master Data List, P/N 560-0278-01, Revision A, dated November 12, 2004, or later FAA approved revision.
FAA holder: Garmin AT Inc.
SA02686ATEngine and powerplant
Installation of air intake louvers on the rear engine lower cowl in accordance with Aviation Enterprises Installation Instructions, dated June 15, 2003, or later FAA approved revision.
FAA holder: Aviation Enterprises
SA02055ATFuel systems
Installation of wing tip extension fuel tanks in accordance with Aviation Enterprises (AE) Installation Instructions, Revision D, dated January 13, 2000, or later FAA approved revisions. Installation of wing aerodynamic fences in accordance with AE Drawing No. SKM-FTII, Revision C, dated August 17, 1999, or later FAA approved revisions. Increase in the Maximum Takeoff Gross Weight from 4700 lbs to 5120 lbs.
FAA holder: Aviation Enterprises
SA01215SEAircraft structures
Installation of vortex generators on the leading edge of the upper side of the wing on the underside of the horizontal stabilizer, and on both vertical stabilizers.
FAA holder: Micro AeroDynamics Inc
SA4961NMOther aircraft modifications
Installation of a NSA sunvisor system for the pilot and copilot.
FAA holder: Rosen Sunvisor Systems LLC
SA02527ATEngine and powerplant
Installation of a landing gear in-transit warning light in 337 models that are equipped with an electric motor to retract landing gear instead of engine driven hydraulic pump.
FAA holder: Aviation Enterprises
SA01179ATCargo and special mission
Installation of an external cargo Pod.
FAA holder: RT Aerospace Corp
SA5090NMFuel systems
Installation of a nineteen and a half(19.5 U.S.) gallons wing tip fuel tank on each wing tip.
FAA holder: Flint Aero Inc
SA02056ATAircraft structures
Installation of wing tip extensions in accordance with Aviation Enterprises (AE) Installation Instructions, Revision D, dated January 13, 2000, or later FAA approved revisions. Installation of wing aerodynamic fences in accordance with AE Drawing No. SKM-FTII, Revision C, dated August 17, or later FAA approved revisions. Increase in the Maximum Takeoff Gross Weight from 4700 lbs to 5120 lbs.
FAA holder: Aviation Enterprises