ST02036WIAvionics
Installation of an additional Garmin G700 TXi Primary Flight Display or Multifunction Display.
FAA holder: Butler National Corporation
FAA-listed STC holder
Butler National Corporation STCs
The Jun 30, 2026 FAA DRS snapshot lists 10 selected supplemental type certificates with status Current under Butler National Corporation. The records span 36 public aircraft directories and 4 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.
10
listed Current at snapshot
36
aircraft directories
4
modification categories
Oct 1, 2024
latest recorded revision
Modification mix
Avionics4
Other aircraft modifications4
Aircraft connectivity1
Fuel systems1
Aircraft represented
Boeing 737-200 Series433 STCsBoeing 747-100 Series293 STCsBoeing 747-300 Series200 STCsLearjet 35A (C-21A)158 STCsBoeing 747SP Series151 STCsBoeing 737-100 Series137 STCsLearjet 35136 STCsLearjet 60125 STCsLearjet 36A123 STCsLearjet 36122 STCsBoeing 737-200C Series113 STCsBoeing 747SR Series83 STCsBoeing 747-200 Series77 STCsLearjet 3171 STCsLearjet 31A69 STCsLearjet 2562 STCsLearjet 25B58 STCsLearjet 25C57 STCsLearjet 25D54 STCsLearjet 25F51 STCs
Recently revised records
Showing the 10 most recently revised records. Category directories provide the complete paginated discovery path.
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ST01138DEOther aircraft modifications
Installation of MidContinent MD23 standby altimeter and/or attitude indicators.
FAA holder: Butler National Corporation
ST02230SEAvionics
The installation of dual Garmin GTX-33ES Mode-S transponders and single or dual Garmin GTN 650/750 panel mounted navigation and global positioning system (GPS) units, or dual Garmin GTX-335R and/or GTX-345R Mode-S transponders and single or dual Garmin GTN 650/750/625/725 panel mounted navigation and GPS units.
FAA holder: Butler National Corporation
ST04481CHOther aircraft modifications
Replacement of similar functioning circuit and switch for obsolete steering interface unit (SIU) in accordance with Butler National Master Data List 0200 I 020 Revisio n (A) , dat ed 14 MAY 2021, or later FAA Approved Revision.
FAA holder: Butler National Corporation
ST02455SEAircraft connectivity
Installation of Dual GTX-3000 Transponders, GDL-88 Automatic Dependent Surveillance-Broadcast (ADS-B) (In) with Wide Area Augmentation System (WAAS) Global Positioning System (GPS) sensor and Flight Stream 210 Bluetooth Connectivity installed for ADS-B (Out) compliance.
FAA holder: Butler National Corporation
ST02500SEAvionics
The installation of the Garmin GDL-88 with the Flight Stream 210 to allow ADS-B(In) Flight Information Service Broadcast (FIS-B), independent of the ADS-B(Out) solution compliance.
FAA holder: Butler National Corporation
ST01733WIOther aircraft modifications
Installation of the Quiet Lear Hushkit or Avcon Noise Suppressor.
FAA holder: Butler National Corporation
ST01842SEAvionics
Installation of a Sandel Avionics Horizontal Situation Indicator (HSI) and Attitude Direction Indicator (ADI).
FAA holder: Butler National Corporation
ST01160SEOther aircraft modifications
Installation of Model 10100111 and 10100112 Transient Suppression Devices.
FAA holder: Butler National Corporation
ST00846SEFuel systems
Installation of Model 840037-108, 840037-112, and 840037-113 Transient Suppression Devices on Boeing 747 Classic Airplanes fitted with Honeywell Analog Fuel Quantity Indication Systems.
FAA holder: Butler National Corporation