TC reported intermittent brake fault atcar 3619. Train performance -ok. ~~~~~ 3619 TC reported intermittent brake fault. Train performance -ok. CE: #3619 No recurrence Of brake Fault. 44397  3619 INtermittent BCU fault, FC 322/323/324/325. Checked Dump Valve, Tacho Axle 1 & 4 - OK. Replaced BCU. Wheel Diameter set to 834mm. Function brake test - OK. Depot movement - OK. Old: 1521201 New: 1530214 Kana 44397