STC SA4406NM
FAA DRS lists SA4406NM as Current · Reissued, held by Sierra Industries Ltd., for Textron Aviation 501. Recorded change: Installation of Pratt & Whitney JT15D-4 engines including minor aircraft modifications. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of Pratt & Whitney JT15D-4 engines including minor aircraft modifications.
SA4406NM 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: Textron Aviation 501. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Textron Aviation 501 model, serial range, and configuration?
- 02Which configuration, parts, installation data, limitations, and ICAs apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related other aircraft modifications STCs
Installation of dual torque indicator.
FAA holder: Airwork (NZ) Limited
Installation of the AFIRS 228 system.
FAA holder: FLYHT Aerospace Solutions Ltd
Installation of an auto lean system.
FAA holder: Flight Enhancements LLC
Removal of the icephobic coating from the area surrounding static ports.
FAA holder: Cary Winter Resurgent Aviation Solutions, LLC