TC reported smoke external Rear M1. SM(TAP) and SM(NOV) checked and confirmed no sign of smoke or fi re. T439 and T255 line clear into BDL SB, report no abnormal ities. All ok. ~~~~~ TC reported smoke external Rear M1. SM(T     Check Tims shown FC-721,Further check found external smoke detector water seepage into PCB.,,Replace smoke detector and function test ok. Smoke Detector- Old s/n:   New s/n: SD-016 Done by Koh/Faddzal. 25/08/21