STC SR04549AT
FAA DRS lists SR04549AT as Current · Reissued, held by Centerpointe Aerospace, for Sikorsky Aircraft S-58BT, Sikorsky Aircraft S-58DT, and Sikorsky Aircraft S-58ET, and 3 more aircraft configurations. Recorded change: Conversion of the Pratt & Whitney PT6T-3 to the PT6T-3B configuration. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SR04549AT 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: Sikorsky Aircraft S-58BT, Sikorsky Aircraft S-58DT, and Sikorsky Aircraft S-58ET, and 3 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related other aircraft modifications STCs
Change to the Layout of Passenger Accommodations.
FAA holder: Duncan Aviation Inc
Limit the maximum number of passenger seats to 9.
FAA holder: Lake Clark Air Inc.
Installation of the Audio System.
FAA holder: Cascade Aerospace Inc.
FAA record reference
- STC number
- SR04549AT
- Product
- Aircraft · Rotorcraft
- Country
- United States
- Application date
- August 23, 2022
- Revision date
- February 21, 2023
- CFR references
- Part 29