TC reported Front M2 one of the train doors was not proven closed. Staff(ADM) confirmed Front M2 'A1 ' door slow in closing. TC reported Front M2 one of the trai n doors was not proven closed. Staff(ADM) confirmed Front M2 ~~~~~ TC reported Front M2 one of the train do     #2615-A1-RHS door roller faulty.Replaced door roller and cleaning done on Guide & J-rail.Checked all measuring items within criteria.Conducted static test ok. Done by Asruddin/Haslan. 26/03/23