'A4' train doors at Front DT car were not proven closed. TC recycled train doors once - ok. Fault re cur at NOV2. Fault self cleared. Staff (SOM) checked and con firmed no train door abnormalities. TIMS showed intermittent ~~~~~ 3656 'A4' train doors at Front DT (3656)car were not proven closed. TC recycled train doors once - ok. Fault recur at NOV2. Fault self cleared. Staff (SOM) checked and confirmed no train door abnormalities. TIMS showed intermittent obstacle detected on said train doors CE:3656 All doors proven open and closed  3656 A4 Door fc 083/086 found door wobbly and stuck due to RHS inner and outer door roller damage. Replace RHS door roller done and Push/Pull passed. Do the normal check and cleaning done. Jrail, Guide rail, FOD no abnormalities, Door rubbing mark ok. DLD, DCS, DLS ok. Door opening and closing several times and static test ok Done by Asruddin/Haslan    45126