TC reported intermittent BCU fault at FDT. Train performance is normal. ~~~~~ TC reported intermittent BCU fault at FD     #3566 BCU WSP Timer 1 & 2 activated(time out)FC: 322 & 323 no w/s/s observed during depot shunting.Replaced BCU and carried out brakes cyclic/function test ok.Dump v/v check ok. BCU-Old s/n: 1825079  New s/n: 1809050 Done by Joshua/Saini/Din/Koh. 28/08/20