Installation of the TB44 Lithium-Ion Battery System.
FAA holder: Avmax Aviation Services Inc.
Aircraft STC directory
De Havilland Aircraft of Canada DHC-8-201 STCs
The Jun 30, 2026 FAA DRS snapshot contains 23 selected supplemental type certificates with status Current whose public applicability data names the De Havilland Aircraft of Canada DHC-8-201. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
23
listed Current at snapshot
13
holder directories
10
modification categories
Dec 9, 2024
latest recorded revision
Modification demand surface
Recorded holders
Avmax Aviation Services Inc5Field Aviation East Limited3Mid Canada Mod Center2Bighorn Airways Inc1B/E Aerospace Limited1ELDEC Corporation1Luma Technologies LLC1Aviation Specialties Unlimited Inc.1Diagnostic Solution International LLC1Cascade Aerospace Inc.1DAC International Inc1Aviation Communication and Surveillance Systems (ACSS) LLC1Lee Aerospace Inc.1
Recently revised DHC-8-201 STCs
Showing the 23 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
Installation of Bighorn CASEVAC Interior System.
FAA holder: Bighorn Airways Inc.
Installation of the Flight Compartment Stowage Box.
FAA holder: Infinion Certification Engineering Inc.
Installation of the Terrain Awareness and Warning System.
FAA holder: Mid Canada Mod Center
Installation of the Honeywell MK VIII Enhanced Ground Proximity Warning System (EGPWS) Override Control.
FAA holder: Field Aviation East Limited
Installation of the ACSS TCAS 7.1.
FAA holder: Avmax Aviation Services Inc
Installation of Dual Universal UNS-1E Flight Management System WAAS Up-grade.
FAA holder: Field Aviation East Limited
Installation of a Supplemental Lighting System.
FAA holder: Aviation Specialties Unlimited Inc.
Installation of Chadwick Helmuth Propeller Balance Monitoring System (Vibration Management System II, VMS II).
FAA holder: Diagnostic Solution International LLC
Installation of Environmental Control System Performance Improvement Modification.
FAA holder: Cascade Aerospace Inc.
Installation of the Traffic Collision Avoidance System (TCAS) II Version 7.1 and Elementary Surveillance (ELS) Transponder Upgrade.
FAA holder: Genesys Certification Services Inc.
Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out.
FAA holder: Aviation Communication and Surveillance Systems (ACSS) LLC
Heated (LH) Side Canopy Window Assembly replacement installation.
FAA holder: Lee Aerospace Inc.
Installation of the Universal Avionics EFI-890R MFD.
FAA holder: Avmax Aviation Services Inc
Installation of the Honeywell Solid State Cockpit Voice Recorder (SSVR) system.
FAA holder: Avmax Aviation Services Inc
Installation of dual Universal Navigation UNS-1C flight management system.
FAA holder: Advanced Avionics Technologies