TIMS showed fire external and smoke external alarms in the Rear DT car. Rear T204 performed a line c lear, no sign of any smoke or fire. Staff (KTB) checked and confirmed no signs of heat, smoke or fire in the Rear DT car ~~~~~ TIMS showed fire external and smoke exte     Fault at #3538 check and found PCB board water seepage.Replace new unit and test ok. Not: 2456156 raise. Done by Haikel/Morgan. 26/01/23