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Aircraft STC directory

Cessna Aircraft 177 STCs

The Jun 30, 2026 FAA DRS snapshot contains 43 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 177. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

43
listed Current at snapshot
30
holder directories
9
modification categories
May 20, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications15Engine and powerplant11Avionics7Landing gear and brakes3Fuel systems2Cabin and interiors2Aircraft structures1Flight controls1Electrical systems1

Recorded holders

Power Flow Systems Inc.2Maple Leaf Aviation Ltd2Precise Flight Inc2S-TEC Corporation2LegacySTC.com1Quantum Swiss LLC1Genesys Aerosystems Inc.1Saf-Air Products Inc.1PECO Inc1Airwolf Filter Corporation1Airglas Inc.1Brittain Industries, Inc1Aerotech Components Inc1BAS Inc1Lord Corporation1Chelton Flight Systems Inc.1Aero Safe Corporation1Gold Coast Aviation Service Inc1Hartwig Aircraft Fuel Cell Repair1EAA Aviation Foundation1

Recently revised 177 STCs

Showing the 43 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA02674ATEngine and powerplant

Modification of engine exhaust system for improved engine performance by installation of Power Flow Systems, Inc. Tuned Exhaust System per Master Drawing List, PFS-13740-00, Revision, IR, dated: 06/05/03 or Master Drawing List, PFS-13741-00, Revision, IR, dated: 11/26/03 and Installation Instructions Report, PFS-13750-00, Revision A, dated: 08/30/02 or Installation Instructions contained in Report PFS-13751-00, Revision, IR, dated: 11/26/03 or later FAA approved revision.

FAA holder: Power Flow Systems Inc

View record