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Aircraft STC directory

Textron Aviation E33A 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 E33A. 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
11
holder directories
7
modification categories
Feb 17, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications3
Aircraft structures3
Fuel systems2
Electrical systems2
Landing gear and brakes2
Propellers2
Engine and powerplant1

Recorded holders

CheckSix AeroSolutions, LLC2Marsh Brothers Aviation Inc2General Aviation Modifications Inc.2Aerosport Fuel Cells, LLC1Peregrine1Aero-Mach Wilco LLC1Gallagher Aviation LLC1Hartzell Propeller Inc1D'Shannon Products Ltd.1TALCO Aviation Corp.1Cygnet Aerospace Corp.1

Recently revised E33A STCs

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

SA493CHEngine and powerplant

Increase in maximum gross weight from 3600 lbs. to 3700 lbs. with installation of Continental I0-550-B engine in accordance with D'Shannon Products Installation Instruction 71-20-00, dated 10/20/88, or later FAA-approved revision; and installation of Cooling Air Baffles in accordance with D'Shannon Products Installation Instruction DSP1M95-2, dated 6/1/95, FAA-approved 6/21/95 or later FAA Approved revisions.

FAA holder: D'Shannon Products Ltd.

View record