TC reported of smoke external present atfront DT car. SM (PNR) checked and confirmed there were no signs of smoke at the exterior of the train. Rear trains T30 6 and T305 checked for signs of smoke on the trackside and d ~~~~~ #3663 SMOKE EXTER L PRESENT.CHECK CONFIRM FAULT AT #3663.FURTHER CHECK FOUND SMOKE DETECTOR WITH WATER INGRESS.C/O DONE.SEAL THE CONNECTOR WITH PLASEAL DONE OK.SECURE/FUNCTION CHECK DONE OK.GANESAN/LEONG/SHAHRIE 25.01.2023 #3663 SMOKE DETECTOR S/N OLD -NIL NEW - SD038 NOTIFICATION 2455919