Avionics
Avcon STCs Learjet 60 AHRS Upgrade
Learjet upgrade replaces outdated AHRS with new and easier-to-calibrate Rockwell Collins AHC-3000A.

Butler National’s Avcon Industries subsidiary received supplemental type certificate approval to upgrade the attitude heading reference system (AHRS) in the Learjet 60 from the original Rockwell Collins AHC-85 to the Collins AHC-3000A. Bombardier Learjet partnered with Butler on the upgrade program, and operators can have the installation done through Butler National’s Butler Avionics subsidiary in New Century, Kan., which is a Rockwell Collins-authorized installation/repair facility.


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