Installation of ALCOR true-flow/ totalizer system.
FAA holder: Alcor LLC
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 17 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 336. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 17 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Alcor LLC
FAA holder: Genesys Aerosystems Inc.
FAA holder: Seaton Engineering Corp.
FAA holder: BF Goodrich Aerospace
FAA holder: Ontic Engineering and Manufacturing Inc.
FAA holder: Insight Instrument Corporation
FAA holder: MT-Propeller USA Inc.
FAA holder: Electronics International
FAA holder: Rosen Sunvisor Systems LLC
FAA holder: Aviation Enterprises
FAA holder: Micro AeroDynamics Inc
FAA holder: Avidyne Corporation
FAA holder: Burns Richard G
FAA holder: RT Aerospace Corp
FAA holder: Aviation Enterprises