2615 Train prep reported BCU fault. ~~~~~ #2615 Check found FC 307,308 with BCU Comm fault. TIMS did not display any BCP reading for #2615 during brake cyclic check. Replaced BCU and function test. Notification no: 2515981 Old s/n: 1583-236 New s/n: 1509-158 Done by: Kumar and Haikel