Butler Avionics obtains FAA STC approval of Garmin GTN 750Xi/650Xi Navigator Upgrades. The FAA amended STC ST02230SE to provide for the installation of the Xi Navigators in Learjets.

Butler National Corporation (OTC QB: BUKS), a leader in aircraft special mission and avionics modification, announces Federal Aviation Administration (“FAA”) Supplemental Type Certificate (“STC”) approval of the Butler National ADS-B(Out) avionics solution in the Learjet Models 31 and 31A with TCAS II.

Butler Avionics, Inc., a subsidiary of Butler National Corporation (OTC QB: BUKS), received Federal Aviation Administration (“FAA”) Supplemental Type Certificate (“STC”) approval for its ADS-B(Out) solution in the Learjet 31A.

Butler Avionics, Inc, a subsidiary of Butler National Corporation (OTC QB: BUKS), a leader in aircraft special mission and avionics modifications, engineering, integration, manufacturing and gaming industry service management, announces European Aviation Safety Agency (“EASA”) Supplemental Type Certificate (“STC”) approval of the Butler National Garmin GPS / Navigation / Communication Navigator GTN 750/650/725/625 installation in the Learjet Model 35, 35A, 36, 36A and Model 24/25 Series aircraft.

Butler Avionics, Inc, a subsidiary of Butler National Corporation (OTC QB: BUKS), a leader in aircraft special mission and avionics modifications, engineering integration, manufacturing, and gaming industry service management, announces European Aviation Safety Agency (“EASA”) Supplemental Type Certificate (“STC”) approval of the Butler National ADS-B(Out) avionics solution in the Learjet Model 35, 35A, 36, 36A and Lear 60.