TC reported Train number indicator not working at car 3520. ~~~~~ 3520 TC reported Train number indicator not working. CE: 3520 train no indicator not working.  3520 train number indicator (TNI) swapped to #3519 & confirmed faulty. Awaiting spare. (Team S) #3520 replaced with new Train Number Indicator(S/N:1211300055). Security/Function check - OK. Closed the panel & security check - OK. (Supt. Team 2)  Khairul/Wong/Aqil/Irwan 44922