Aircraft STC directory
Textron Aviation 56TC STCs
The Jun 30, 2026 FAA DRS snapshot contains 12 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 56TC. 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 56TC STCs
Showing the 12 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of wingtip position/anti-collision light support bracket.
FAA holder: Gallagher Aviation LLC
Installation of engines modified with Firewall Forward Technologies LLC modified camshaft.
FAA holder: Centri-Lube Technologies LLC
Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD).
FAA holder: Mid-Continent Instruments and Avionics
Installation of Main Landing Gear Auxiliary Landing Lights.
FAA holder: Gallagher Aviation LLC
Installation of a wing tip recognition lights.
FAA holder: Gallagher Aviation LLC
Modification of the Brake Master Cylinder.
FAA holder: Marsh Brothers Aviation Inc
Installation of an S-TEC 01326 Digital Flight Control System (DFCS).
FAA holder: S-TEC Corporation
Installation of a control yoke anti-theft clamp.
FAA holder: Cygnet Aerospace Corporation
Installation of Nose Landing Gear Door Hinge Bushings.
FAA holder: Marsh Brothers Aviation Inc