STC SA4-1578
FAA DRS lists SA4-1578 as Current · Reissued, held by SOUTHWESTERN AERO EXCHANGE INC., for Raytheon Aircraft D18C and Raytheon Aircraft D18S. Recorded change: Removal of the main cabin entrance door and installation of stair door. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
SA4-1578 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 D18C and Raytheon Aircraft D18S. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related cabin and interiors STCs
Installation of an interior reconfiguration.
FAA holder: AAR Engineering Services
Installation of video entertainment system.
FAA holder: Rockwell Collins Inc
FAA record reference
- STC number
- SA4-1578
- Product
- Aircraft · Small Multi-Engine
- Country
- United States
- Application date
- June 29, 1961
- Revision date
- February 24, 2006
- CFR references
- Part 21