Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS).
FAA holder: Sterling Helicopter
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 8 selected supplemental type certificates with status Current whose public applicability data names the Bell Textron Canada 505. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 8 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Sterling Helicopter
FAA holder: HELIFAB
FAA holder: Dart Aerospace
FAA holder: Aviation Specialties Unlimited Inc.
FAA holder: Helifab East LLC
FAA holder: Alpine Aerotech LP
FAA holder: Garmin International Inc
FAA holder: Bell Helicopter Textron Inc.