SA5581SWOther aircraft modifications
Installation of ALCOR true-flow/ totalizer system.
FAA holder: Alcor LLC
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft R172 Series. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 3 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: Lord Corporation
FAA holder: Skybolt Aeromotive Corp