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-6-1 STCs
The Jun 30, 2026 FAA DRS snapshot contains 14 selected supplemental type certificates with status Current whose public applicability data names the Bombardier DHC-6-1. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
14
listed Current at snapshot
9
holder directories
6
modification categories
Jul 16, 2019
latest recorded revision
Modification demand surface
Other aircraft modifications6
Avionics2
Cabin and interiors2
Engine and powerplant2
Propellers1
Aircraft connectivity1
Recently revised DHC-6-1 STCs
Showing the 14 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.
SA3321NMCabin and interiors
Installation of a cabin compartment combination airstair and cargo door.
FAA holder: Gottlieb Corporation dba Air Transport Industries
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.
SA250CEPropellers
Installation of Woodward electronic propeller synchraphaser system.
FAA holder: Ontic Engineering and Manufacturing Inc.
SA235NWCabin and interiors
Modification of cabin compartment irstair door.
FAA holder: Air Transport Industries
SA01046CHEngine and powerplant
Installation of SMR Technologies engine inlet anti-icer models.
FAA holder: SMR Technologies Inc
SA00680SE (4 OF 6Engine and powerplant
Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.
FAA holder: Electronics International
SA00161BO (2 OF 3Avionics
Installation of Avidyne Corporation FlightMax 700-00007-( ) EX500 Multi-Function Display.
FAA holder: Avidyne Corporation
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.
SA02655AT (1 OF 2)Other aircraft modifications
Installation of JAARS Model F5K Automatic Flight Following System (AFFS) in Helio H-295 type aircraft.
FAA holder: JAARS Inc.
SA01945NYOther aircraft modifications
Cockpit voice recorder replacement with Universal CVR 30B or CVR 120.
FAA holder: MidCanada Mod Center
SA00948CHOther aircraft modifications
Installation of various de-icer wire harnesses. (E90 modified by STC SA3593NM, F90 modified by STC SA4131NM, B200 modified by STC SA2698NM-S, DHC-6 Series modified by STC SA3532NM).
FAA holder: SMR Technologies Inc
SA00165BOOther aircraft modifications
Installation of Avidyne Corporation Datalink Coupler, part number 700-00015-000 per Avidyne Corporation Master Document List, Document No. AVACP-006 dtd 1/2/93 or later FAA-approved revisions.
FAA holder: Avidyne Corporation