3627 WSP timer 1 and 2 activated. ~~~~~ 3627 WSP timer 1 and 2 activated.     #3627 Found BCU faulty-replaced and carried out limited movement tested ok.During Depot shunting no W/S/S occurance. #3627-BCU: New s/n: 1544300  Old s/n: 1439045 Done by Kumar/Jack/Sateesh/Koh. 04/02/20