SA32RMOther aircraft modifications
Installation of electrically driven freon air-conditioning system.
FAA holder: Air Comm Corporation
Aircraft STC directory
Cessna Aircraft 337D STCs
The Jun 30, 2026 FAA DRS snapshot contains 25 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 337D. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
25
listed Current at snapshot
16
holder directories
10
modification categories
Jul 2, 2019
latest recorded revision
Modification demand surface
Other aircraft modifications6
Fuel systems6
Aircraft structures4
Engine and powerplant3
Flight controls1
Cabin and interiors1
Avionics1
Safety and emergency equipment1
Propellers1
Cargo and special mission1
Recorded holders
Aviation Enterprises7P2 Incorporated2Eaglejet Aviation Inc.2Air Comm Corporation1Spoilers Inc1Glen A Florence, Aero Technologies, Inc.1Icarus Avionics, LLC1AirScan Inc1Shadin Avionics1MT-Propeller USA Inc.1Garmin AT Inc.1G & D Aero Products Inc.1Micro AeroDynamics Inc1Rosen Sunvisor Systems LLC1RT Aerospace Corp1Flint Aero Inc1
Recently revised 337D STCs
Showing the 25 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
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
SA672CEFuel systems
Install auxiliary fuel tank in rear baggage area.
FAA holder: Eaglejet Aviation Inc.
SA678CESafety and emergency equipment
Install fuselage top emergency exit door.
FAA holder: Eaglejet Aviation 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.
ST01548LAEngine and powerplant
Installation of external landing gear position verification mirrors and aft engine cowl observation mirrors.
FAA holder: Wheeler Don E. dba Legal Mirrors
SA1823NMAircraft structures
Installation of Lompoc Aero Specialties inner plexiglass pane in swing out window frames presently employing a single window, in accordance with Lompoc Aero Specialties FAA sealed Eligibility List dated January 4, 1983, together with their FAA sealed Installation Instructions dated September 20, 1982, or later FAA approved revisions. Manufacturer of the windows is controlled by Lompoc Aero Specialties drawings LAS 1012 dated August 6, 1982, LAS 1013 dated October 5, 1982, and LAS 1014 dated October 6, 1982, or later FAA approved sealed revisions.
FAA holder: G & D Aero Products 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