TC reported Smoke external alarm at Front M2 car. Staff(YWT) checked and feedback no sign of smoke. TC reported Smoke external alarm at Front M2 car. Staff(YWT)checked and feedback no sign of smoke. ~~~~~ To check ext smoke detector and replace if necessary

#2657,#1658,#2658,FC 731,735,721,Remove no #2 hatch cover and check smoke detector have water ingress.Replaced new detector and tested ok.
Done by Haslan/Asruddin/Syahmi.  06/03/23