ST02074CHAvionics
Installation of Innovative Solutions & Support (IS&S) dual Air Data Display Units (ADDU) and single Analog Interface Unit (AIU).
FAA holder: Elliott Aviation Technical Products
Aircraft STC directory
Raytheon Aircraft HS.125 Series 600B STCs
The Jun 30, 2026 FAA DRS snapshot contains 4 selected supplemental type certificates with status Current whose public applicability data names the Raytheon Aircraft HS.125 Series 600B. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
4
listed Current at snapshot
3
holder directories
3
modification categories
Nov 18, 2004
latest recorded revision
Modification demand surface
Electrical systems2
Avionics1
Safety and emergency equipment1
Recently revised HS.125 Series 600B STCs
Showing the 4 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
ST01223WIElectrical systems
Replacement of the original nickel-cadmium battery with a Concorde Valve Regulated Sealed-Lead-Acid (VRSLA) RG-125 series Battery in the Raytheon Model BH.125, DH.125 and HS.125 Airplanes in accordance with Concorde Battery Corporation Master Drawing List, Drawing No. 5-0207, Revision C, dated October 31, 2003, or later FAA approved revision.
FAA holder: Concorde Battery Corporation
ST01171WISafety and emergency equipment
Installation of the Honeywell MK VII Enhanced Ground Proximity Warning System. Data Required: (1) Midcoast Master Data List No. 24-327G003 revision B, dated June 4, 2003, or later FAA approved revision. (2) FAA Approved Airplane Flight Manual Supplement, Midcoast Report Number 24-327M003 revision NC, dated June 9, 2003, or later FAA Approved revision.
FAA holder: Midcoast Aviation Inc
ST01324LAElectrical systems
Installation of Garrett Aviation auxiliary electrical hydraulic system.
FAA holder: AiResearch Aivation Service Co