During DT, found #1611 BCU fault. Unable ~~~~~ #1611- Checked TIMS & Found FC 308, 331, 330. C/o ACU-Security & Function test-Ok.    Raghu. 15.08.2022. Old ACU S/No: 1447/053.  Noti to RSW: 2408469. New ACU S/No: 1451/059.