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.
Modification demand surface
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.
Installation of electrically driven freon air-conditioning system.
FAA holder: Air Comm Corporation
Installation of P2 Incorporated 6600 Audio Advisory system.
FAA holder: P2 Incorporated
Install SAF-T-STOP auxiliary seat stop device.
FAA holder: Glen A Florence, Aero Technologies, Inc.
Installation of a Time Trac Data Recorder.
FAA holder: P2 Incorporated
Replacement of hydraulic system pressure switch.
FAA holder: APPH Wichita Inc.
Installation of a Shadin Co. 910516 fuel flow indicating system.
FAA holder: Shadin Avionics
Installation of a NSA sunvisor system for the pilot and copilot.
FAA holder: Rosen Sunvisor Systems LLC
Installation of an external cargo Pod.
FAA holder: RT Aerospace Corp