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Aircraft STC directory

Cessna Aircraft 175 STCs

The cited FAA DRS record snapshots contain 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
Aug 3, 2026
latest recorded revision

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.

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