Aircraft STC directory
Bombardier DHC-4A STCs
The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Bombardier DHC-4A. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
3
listed Current at snapshot
2
holder directories
2
modification categories
Jun 7, 2018
latest recorded revision
Modification demand surface
Recorded holders
Recently revised DHC-4A STCs
Showing the 3 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.
FAA holder: Electronics International
Installation of Bendix/King TCAS II system.
FAA holder: Bombardier Completion Center Inc