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Aircraft STC directory

Textron Aviation E33 STCs

The Jun 30, 2026 FAA DRS snapshot contains 15 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation E33. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

15
listed Current at snapshot
9
holder directories
8
modification categories
Feb 17, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications3
Aircraft structures3
Fuel systems2
Electrical systems2
Landing gear and brakes2
Propellers1
Aircraft performance1
Engine and powerplant1

Recorded holders

CheckSix AeroSolutions, LLC2Gallagher Aviation LLC2Marsh Brothers Aviation Inc2D'Shannon Products Ltd.2Aerosport Fuel Cells, LLC1MT- Propeller Entwicklung GmbH1Aero-Mach Wilco LLC1TALCO Aviation Corp.1Cygnet Aerospace Corp.1

Recently revised E33 STCs

Showing the 15 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.