SA01800SE (PG 2)Avionics
Fabrication and installation of new or replacement of existing instrument panel lights dimmer control.
FAA holder: Seaton Engineering Corp.
Aircraft STC directory
Bombardier DHC-3 STCs
The Jun 30, 2026 FAA DRS snapshot contains 18 selected supplemental type certificates with status Current whose public applicability data names the Bombardier DHC-3. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
18
listed Current at snapshot
8
holder directories
8
modification categories
Jul 16, 2019
latest recorded revision
Modification demand surface
Other aircraft modifications7
Propellers3
Avionics2
Aircraft performance2
Aircraft structures1
Engine and powerplant1
Aircraft connectivity1
Flight controls1
Recently revised DHC-3 STCs
Showing the 18 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA01861SE (PAGE 2)Other aircraft modifications
Fabrication and installation of Landing Light Controller.
FAA holder: Seaton Engineering Corp.
SA4345NMOther aircraft modifications
Installation of a one to nine passenger configuration.
FAA holder: Kenmore Air Harbor LLC
SA00287NYAircraft structures
Installation of Baron STOL kit consisting of contoured wing leading edge and drooped wing tips.
FAA holder: Stolairus Aviation Inc
SA02735NYAircraft performance
Harbour Air 9000 Lbs Maximum Gross Weight Modification to be installed.
FAA holder: Harbour Air Ltd.
SA01243NYOther aircraft modifications
Installation of a Flutter Prevention Modification.
FAA holder: Viking Air Limited
SA01473SE (2 OF 5)Other aircraft modifications
Installation of a GTX 32 (mode C), GTX 33 (mode S), or GTX 33D (mode S with diversity) Remote Transponde.
FAA holder: Garmin AT Inc.
SA02516NYOther aircraft modifications
Installation and maintenance of Seaflight SI-7170 floats (EDO Model 55-7170A floats modified with STC SQ02514NY).
FAA holder: Seaflight Industries, Inc
SA02009NYAircraft performance
Installation of modifications for gross weight increase to 9000 lb.
FAA holder: Viking Air Limited
SA3777NMEngine and powerplant
Installation of Pratt and Whitney PT6A-135 engine, Hartzell HC-B3TN-3C/T10282 constant speed propeller and other associated changes. (OTTER DHC-3 (U-1A) normal category landplane only).
FAA holder: Vazar Inc
SA01487SE (2 OF 5)Aircraft connectivity
Installation of a GDL 69 or GDL 69A XM Satellite Receiver in accordance with Garmin Supplemental Type Certificate Master Data List, P/N 005-C0217-00, Revision A, dated December 20, 2004, or later FAA approved revision.
FAA holder: Garmin AT Inc.
SA01995NYOther aircraft modifications
Installation of EDO model 56-7850A or International Aeroproducts model 8100 floats.
FAA holder: New Sioux Enterprises Ltd.
SA02213AKPropellers
Installation of Hamilton Standard 23E50 propeller and 4G10 constant speed unit. Limited to installation on serial number 183 ONLY.
FAA holder: Promech Air
SA10237SCPropellers
Installation of the AVIA Hamilton Standard V508E propeller.
FAA holder: Canada Turbine Conversions Inc.
SA01380SEOther aircraft modifications
Installation of EDO 324-7490 Amphibious floats.
FAA holder: Kenmore Air Harbor Inc
SA09862SCPropellers
Installation of the AVIA Hamilton Standard VJ8.510 propeller.
FAA holder: Canada Turbine Conversions Inc.
SA01059SEFlight controls
Installation of a new elevator servo-tab and redundant control linkage.
FAA holder: American Aeromotives Inc.