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Other aircraft modifications

STC SA293NW

FAA DRS lists SA293NW as Current · Amended, held by Franklin Aircraft Engines Inc., for Cessna Aircraft 172, Cessna Aircraft 172A, and Cessna Aircraft 172B, and 18 more aircraft configurations. Recorded change: 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. Snapshot dated June 30, 2026.

FAA-listed holder
Franklin Aircraft Engines Inc.
Aircraft configurations
21
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

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.

SA293NW identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Cessna Aircraft 172, Cessna Aircraft 172A, and Cessna Aircraft 172B, and 18 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 1723A12Cessna Aircraft 172A3A12Cessna Aircraft 172B3A12Cessna Aircraft 172C3A12Cessna Aircraft 172D3A12Cessna Aircraft 172E3A12Cessna Aircraft 172F (USAF T-41A)3A12Cessna Aircraft 172G3A12Cessna Aircraft 172H (USAF T-41A)3A12Cessna Aircraft 172I3A12Cessna Aircraft 172K3A12Cessna Aircraft 172L3A12Cessna Aircraft 172M3A12Cessna Aircraft 172N3A12Cessna Aircraft 172P3A12Cessna Aircraft 1753A17Cessna Aircraft 175A3A17Cessna Aircraft 175B3A17Cessna Aircraft 175C3A17Cessna Aircraft 170AA-799Cessna Aircraft 170BA-799

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 172 and Cessna Aircraft 172A, and 19 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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