STC SA4550SW
FAA DRS lists SA4550SW as Current · Reissued, held by Blackhawk Modifications Inc., for Raytheon Aircraft 99. Recorded change: Installation of Pratt & Whitney PT6A-27 or PT6A-28 engines. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4550SW 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 99. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related other aircraft modifications STCs
Manufacture and Installation of Foam Injection System.
FAA holder: Cascade Aerospace Inc.
Installation of optional recording system under Configuration A1, which consists of L3Harris Modular Airborne Data recording/Acquisition Systems (MADRAS) Cockpit Voice and Data Recorder (CVDR) system.
FAA holder: AgustaWestland Philadelphia Corporation (AWPC)
Installation of Falcon 20 Cockpit Enhancements.
FAA holder: Avmats Jet Support
Installation of Replacement Heater Lines.
FAA holder: Boost Human External Cargo Systems Inc.
FAA record reference
- STC number
- SA4550SW
- Product
- Aircraft · Small Multi-Engine
- Country
- United States
- Application date
- June 11, 1981
- Revision date
- December 6, 2004
- CFR references
- Part 21, Part 23