TC reported obstacle detected at A3 door, FDT car. Staff (DBG) checked and confirmed FDT car, A3 doo r did not opened, Staff(DBG) then proceeded to isolate A3 do or in close position. TC reported obstacle detected at A3 do ~~~~~ TC reported obstacle detected at A3 door N3   #3614-A3 door was isolated and found LHS door wobbling.DLD rubber cushion ok.DLS red mark ok.Before push-9kg and pull-11kg.Remove door and replace new roller due to bearing spoil.Clean J-rail & guide rail no FOD found.No rubbing mark,DCS-15mm,check DLS & DCS function check ok,Door timing ok. After replace roller:- Push resistant-5kg Pull resistant-5kg Mating strip-63.2mm Done by Haslan/Asruddin.  17/11/22