ST316CHOther aircraft modifications
Installation of a TCAS791/791A Traffic alert and collision avoidance system I (TCAS I).
FAA holder: Acron Aviation Inc.
Aircraft STC directory
Textron Aviation DH.125 Series 400A STCs
The Jun 30, 2026 FAA DRS snapshot contains 4 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation DH.125 Series 400A. 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
4
holder directories
2
modification categories
Apr 1, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications3
Avionics1
Recently revised DH.125 Series 400A 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
ST11285DSOther aircraft modifications
An update to the existing Collins Aerospace Integrated Flight Information System (IFIS) FSU-5010 and upgrade the existing XMWR-1000 to a XMWR-1000S (Sirius XM) in Part 25.
FAA holder: BHE & Associates Ltd.
ST01084WIOther aircraft modifications
Installation of Collins TCAS-4000 TCAS II System (with or without optional Avidyne Flight Max 800 MDF).
FAA holder: Blackhawk Aerospace Technologies Inc.
SA2728SWAvionics
Installation of Global GNS-500A Omega/VLF System for Secondary Navigation.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System