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
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
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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