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Engine and powerplant

STC SA3-571

FAA DRS lists SA3-571 as Current · Reissued, held by D'Shannon Products Ltd., for Cessna Aircraft 172B, Cessna Aircraft 172H (USAF T-41A), and Cessna Aircraft 172C, and 6 more aircraft configurations. Recorded change: Lycoming O-360-A1D engine, McCauley 2D36C14/78KM-4 or Hartzell HC-C2YK-1A/7666-2 propellers. Snapshot dated June 30, 2026.

FAA-listed holder
D'Shannon Products Ltd.
Aircraft configurations
9
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Lycoming O-360-A1D engine, McCauley 2D36C14/78KM-4 or Hartzell HC-C2YK-1A/7666-2 propellers.

SA3-571 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 172B, Cessna Aircraft 172H (USAF T-41A), and Cessna Aircraft 172C, and 6 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 172B3A12Cessna Aircraft 172H (USAF T-41A)3A12Cessna Aircraft 172C3A12Cessna Aircraft 172D3A12Cessna Aircraft 172E3A12Cessna Aircraft 172F (USAF T-41A)3A12Cessna Aircraft 172A3A12Cessna Aircraft 172G3A12Cessna Aircraft 1723A12

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 172B and Cessna Aircraft 172H (USAF T-41A), and 7 more aircraft configurations 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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