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Aircraft STC directory

Cessna Aircraft 337 STCs

The Jun 30, 2026 FAA DRS snapshot contains 31 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 337. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

31
listed Current at snapshot
21
holder directories
9
modification categories
Jul 16, 2019
latest recorded revision

Modification demand surface

Other aircraft modifications8Fuel systems6Aircraft structures5Avionics3Engine and powerplant3Flight controls2Propellers2Cabin and interiors1Cargo and special mission1

Recorded holders

Aviation Enterprises7P2 Incorporated2RT Aerospace Corp2Seaton Engineering Corp.1Spoilers Inc1Brittain Industries, Inc1Glen A Florence, Aero Technologies, Inc.1BF Goodrich Aerospace1D'Shannon Products Ltd.1Icarus Avionics, LLC1AirScan Inc1Ontic Engineering and Manufacturing Inc.1Shadin Avionics1MT-Propeller USA Inc.1J P Instruments1Garmin AT Inc.1G & D Aero Products Inc.1Micro AeroDynamics Inc1Rosen Sunvisor Systems LLC1Avidyne Corporation1

Recently revised 337 STCs

Showing the 31 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

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.

View record