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Aircraft STC directory

Cessna Aircraft 175 STCs

The Jun 30, 2026 FAA DRS snapshot contains 76 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 175. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

76
listed Current at snapshot
45
holder directories
12
modification categories
Dec 13, 2024
latest recorded revision

Modification demand surface

Other aircraft modifications27
Flight controls10
Cabin and interiors8
Engine and powerplant8
Aircraft structures6
Avionics5
Landing gear and brakes4
Fuel systems3
Propellers2
Aircraft performance1
Electrical systems1
Safety and emergency equipment1

Recorded holders

Del-Air3Knots 2U Ltd.3Outpost X Aviation Inc.2Athena Aircraft, LLC2Curry Aviation LLC2Baumann Floats LLC2Selkirk Aviation2Stene Aviation Inc2BAS Inc2D'Shannon Products Ltd.2Micro AeroDynamics Inc2McFarlane Aviation LLC1Kaman Corporation Aircraft Wheel and Brake LLC1Genesys Aerosystems Inc.1Flight Boss Ltd.1Saf-Air Products Inc.1PECO Inc1AMSAFE Inc.1Alpha Aviation Inc1Brittain Industries, Inc1

Recently revised 175 STCs

Showing the 76 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA293NWOther aircraft modifications

Installation of Franklin 6A-350-C1 or 6A-350-C2 engines, Hartzell HC-C2YF-1BF/F8459A -4 to -8, HC-C2YF-1BF/F8459A-4Q to -8Q, or McCauley 2A31C21/84S-4 to -8 propellers in accordance with Seaplane Flying, Inc. Assembly and Installation Instructions SF 20690, SF20821, or SF 20820, on Cessna Models 170A, 170B, 172, 172A, 172B through P, 175, 175A, 175B and 175C as defined in AML. 2.) Installation of Franklin 6A-350-C1R engines, Hartzell HC-C2YF-1BF/F8459A-4 to -8, HC-C2YF-1BF/F8459-4Q to -8, McCauley 2A31C21/84S-4 to -8 or 2A34C201/90DA-10 to -14 propellers in accordance with Seaplane Flying Inc. Assembly and Installation Instructions SF 20690 on Cessna Models 170A, 170B (Serial Numbers 20267 to 26504) as defined in AML.

FAA holder: Franklin Aircraft Engines Inc.

View record