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Other aircraft modifications

STC SA5460SW

FAA DRS lists SA5460SW as Current · Reissued, held by Blackhawk Modifications Inc., for Raytheon Aircraft C90. Recorded change: Install Pratt & Whitney PT6A-21engines in place of PT6A-20A engines. Snapshot dated June 30, 2026.

FAA-listed holder
Blackhawk Modifications Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Install Pratt & Whitney PT6A-21engines in place of PT6A-20A engines.

SA5460SW 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: Raytheon Aircraft C90. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Raytheon Aircraft C903A20

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Raytheon Aircraft C90 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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