ST03795NYElectrical systems
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
Other aircraft modifications7
Avionics7
Safety and emergency equipment2
Electrical systems1
Cabin and interiors1
Engine and powerplant1
Landing gear and brakes1
Propellers1
Aircraft performance1
Aircraft structures1
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
ST02028WICabin and interiors
Installation of Bighorn CASEVAC Interior System.
FAA holder: Bighorn Airways Inc.
ST00109IBOther aircraft modifications
Installation of the Flight Compartment Stowage Box.
FAA holder: Infinion Certification Engineering Inc.
ST04788NYSafety and emergency equipment
Installation of the Terrain Awareness and Warning System.
FAA holder: Mid Canada Mod Center
ST04783NYOther aircraft modifications
Installation of the provisions for the Mark II Laser Airborne Depth Sounder (LADS) in the Standard Passenger Carrying Configuration.
FAA holder: Field Aviation East Limited
ST00886NYOther aircraft modifications
Installation of Flight Deck Manual Stowage Box, in accordance with Aero Consulting Services Modification Data Summary Number B78600, Revision H, dated November 9, 2006, or later TCCA approved revision.
FAA holder: B/E Aerospace Limited
ST00428NYEngine and powerplant
Installation of a Sundstrand Turbomach T-62T-40C7B gas turbine auxiliary power unit with a Lear Siegler Model 23088-002 DC starter-generator.
FAA holder: Avmax Aviation Services Inc.
ST01689WILanding gear and brakes
Installation of Crane Aerospace & Electronics SmartStem Wireless Tire Pressure Sensing System.
FAA holder: ELDEC Corporation
ST04667NYSafety and emergency equipment
Installation of the Honeywell MK VIII Enhanced Ground Proximity Warning System (EGPWS) Override Control.
FAA holder: Field Aviation East Limited
ST04652NYOther aircraft modifications
Installation of the ACSS TCAS 7.1.
FAA holder: Avmax Aviation Services Inc
ST02722SEAvionics
Installation of LT-4098 series Integrated LED Display Panel and/or associated LT-2201 series LED\nPushbutton Switches.
FAA holder: Luma Technologies LLC
ST03261NYOther aircraft modifications
Installation of Dual Universal UNS-1E Flight Management System WAAS Up-grade.
FAA holder: Field Aviation East Limited
ST02448SEOther aircraft modifications
Installation of a Supplemental Lighting System.
FAA holder: Aviation Specialties Unlimited Inc.
ST00782LAPropellers
Installation of Chadwick Helmuth Propeller Balance Monitoring System (Vibration Management System II, VMS II).
FAA holder: Diagnostic Solution International LLC
ST01226NYAircraft performance
Installation of Environmental Control System Performance Improvement Modification.
FAA holder: Cascade Aerospace Inc.
ST10977SCAvionics
Installation of Dual Universal Avionics Flight Management Systems (FMS) with Global Positioning System (GPS).
FAA holder: DAC International Inc
ST04480NYAvionics
Installation of the Traffic Collision Avoidance System (TCAS) II Version 7.1 and Elementary Surveillance (ELS) Transponder Upgrade.
FAA holder: Genesys Certification Services Inc.
ST04445NYAvionics
Installation of the Collins TDR-94D Transponder / Traffic Collision Avoidance System (TCAS) 4100 Upgrade.
FAA holder: Mid Canada Mod Center
ST02635LAAvionics
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
ST01900WIAircraft structures
Heated (LH) Side Canopy Window Assembly replacement installation.
FAA holder: Lee Aerospace Inc.
ST04344NYAvionics
Installation of the Universal Avionics EFI-890R MFD.
FAA holder: Avmax Aviation Services Inc
ST04324NYOther aircraft modifications
Installation of the Honeywell Solid State Cockpit Voice Recorder (SSVR) system.
FAA holder: Avmax Aviation Services Inc
ST09326SCAvionics
Installation of dual Universal Navigation UNS-1C flight management system.
FAA holder: Advanced Avionics Technologies