What was found
AUTOBRAKE FAIL AMBER CAS: ON APPROACH AFTER SELECTING FLAPS 30 WE GOT AMBER AUTO BRAKE FAIL ALONG WITH AMBER BRAKE 50% DEGRADE. RAN ABNORMAL CHECKLIST . AT SOME POINT ON LANDING ROLL OUT THE MESSAGES WENT AWAY. BRAKE TEMPS ON THE LEFT SIDE ARE A LOT HIGHER THAN THE RIGHT SIDE. PICTURES INCLUDED. I BARLEY USED THE BRAKES ON LANDING USED FULL TR'S . REMOVED AND REPLACED THE BRAKE CONTROL UNIT (BCU), INSTALLED A CUSTOMER SUPPLIED MODIFIED BCU. BCU WAS MODIFIED BY HYDRO-AIRE AEROSPACE CORP, CERT NO. QD3R785L, WORK ORDER NO. 4841389, DATED 19 JUN 2024. PERFORMED OPERATIONAL CHECKS, NO DISCREPANCIES NOTED AT THIS TIME. WORK PERFORMED IAW BOMBARDIER GL-5500 32-43-01.