'B4' train doors at Rear DT car were notproven closed. TC recycled train doors once - ok. Staff(KTB ) checked and confirmed no train doors abnormalities. Fault did not recur at subsequent stations. ~~~~~ 3548 B4 door weather strip rubbing. To rectify.  3548 found B4 LHS door carbody stopper dislodged. Knocked back and tested ok. Done by: Saini/Asruddin/Haslan 45301    224 3548 'B4' train doors at Rear DT car were not proven closed. TC recycled train doors once - ok. Staff(KTB) checked and confirmed no train doors abnormalities. Fault did not recur at subsequent stations."  3548 B4 door intermittent unable to close due to weather strip rubbing against LHS door window frame. Ops20 to rectify. Done by: Low 45301