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Other aircraft modifications

STC SA4705SW

FAA DRS lists SA4705SW as Current · Amended, held by Blackhawk Modifications Inc., for Beechcraft 65-A90, Beechcraft B90, and Beechcraft C90. Recorded change: Installation of Pratt & Whitney PT6A-27 or PT6A-28 engines. Snapshot dated June 30, 2026.

FAA-listed holder
Blackhawk Modifications Inc.
Aircraft configurations
3
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of Pratt & Whitney PT6A-27 or PT6A-28 engines.

SA4705SW 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: Beechcraft 65-A90, Beechcraft B90, and Beechcraft C90. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Beechcraft 65-A903A20Beechcraft B903A20Beechcraft C903A20

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Beechcraft 65-A90 and Beechcraft B90, and 1 more aircraft configuration 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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