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Engine and powerplant

STC SA2478SW

FAA DRS lists SA2478SW as Current · Reissued, held by RPM Commander LLC, for Twin Commander Aircraft 500-S. Recorded change: Installation of Lycoming IO-720- B1B engine and increase take-off and landing weight to 7800 lbs. Snapshot dated June 30, 2026.

FAA-listed holder
RPM Commander LLC
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Lycoming IO-720- B1B engine and increase take-off and landing weight to 7800 lbs.

SA2478SW 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: Twin Commander Aircraft 500-S. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Twin Commander Aircraft 500-S6A1

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Twin Commander Aircraft 500-S 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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