Car 3625 A1 train doors was not proven closed. TC recycled train doors 3 times - okay. Fault did notrecur at subsequent stations. Car 3625 A1 train doors was n ot proven closed. TC recycled train doors 3 times - okay. Fa ~~~~~ Car 3625 A1 train doors was not proven c     #3625-A1 door FC 023.No FOD found and clean guige & J-rail ok.Check DLS,DCS,DLD all ok.Pull/push gauge within range,Mating strip ok ,Door timing checked ok. 0020 raise for further checks. Checked by Saini/Haslan/Asruddin. 22/11/22 3625 A1 To further check due to recurring fault Push/pull,Door mating,DCS Checked within criteria.Found DLS red line visible-adjusted ok.Both door removed and found roller bearing having knocking sound.Change out both main door roller for preventive measure.No FOD found on both rails,door cyclic and static test ok. Done by Sanip/Rizman/Koh.  23/11/22