Skip to content
Engine and powerplant

STC ST1048NW

FAA DRS lists ST1048NW as Current · Amended, held by Kown Bruce, for Cessna Aircraft 170A. Recorded change: Installation of a Franklin 6A-335-B engine, McCauley 2A31C21/84S-4 to -8 propeller, and associated systems; or installation of a Franklin 6A350-C1R or -C2 engine with McCauley 2A31C21/84S-4, or -8 or McCauley 2A34C22/84SF-4, -6, -8, or -10, or McCauley 2A34C201/90DA or Hartzell HC-C2YF-1BF/F8459-4 to -8 or MT-Propeller MTV-12-D/19230D propeller and associated systems. Snapshot dated June 30, 2026.

FAA-listed holder
Kown Bruce
Aircraft configurations
1
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of a Franklin 6A-335-B engine, McCauley 2A31C21/84S-4 to -8 propeller, and associated systems; or installation of a Franklin 6A350-C1R or -C2 engine with McCauley 2A31C21/84S-4, or -8 or McCauley 2A34C22/84SF-4, -6, -8, or -10, or McCauley 2A34C201/90DA or Hartzell HC-C2YF-1BF/F8459-4 to -8 or MT-Propeller MTV-12-D/19230D propeller and associated systems.

ST1048NW 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 170A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 170AA-799

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 170A model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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?

Related engine and powerplant STCs