Train door not proven closed. TC openedand closed thrice to clear fault. TC feedback unable to iden tify the pair of faulty train doors as TIMS did not display the fault. ~~~~~ [Level 3] [NSEWL] T231 (EMU 3516) Train door fault - BSH SB: Train door not proven closed. TC opened and closed thrice to clear fault. ID: 2.5mins. LTOC informed L3 2514 A4 door wobbly, Found LHS door roller chipped off, Change out 3515 A4 and 1516 B3 door DIR lit but DMI not lit during door gauge test 20mm, Adjusted DSS and redo test 10/20mm ok, No FOD observed. Door cyclic and door static test ok. Done by Rizman/Koh 45216