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Engine and powerplant

STC SA4-581

FAA DRS lists SA4-581 as Current · Reissued, held by John P. Warren, for Cessna Aircraft 120, Cessna Aircraft 140, and Cessna Aircraft 140A. Recorded change: Installation of a Lycoming O-290-D engine and Sensenich M76AM-2 or Sensenich CS3FM4 propeller. Snapshot dated June 30, 2026.

FAA-listed holder
John P. Warren
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a Lycoming O-290-D engine and Sensenich M76AM-2 or Sensenich CS3FM4 propeller.

SA4-581 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 120, Cessna Aircraft 140, and Cessna Aircraft 140A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 120A-768Cessna Aircraft 140A-768Cessna Aircraft 140A5A2

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 120 and Cessna Aircraft 140, and 1 more aircraft configuration 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?

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