Train doors at car 2533 'B1' and 'B3' were not proven closed. TC recycled train doors once - ok. Fau lt did not recur at subsequent stations. Train doors at car 2533 'B1' and 'B3' were not proven closed. TC recycled train ~~~~~ CHECK CAR 2533 B1 DOOR FOUND B1 LHS DOOR JUDDERGING WHEN CLOSING.FURTHER CHECK FOUND LHS INNER AND OUTER ROLLERS DAMAGED.REPLACEMENT DONE.2533 B3 DOOR LHS INNER AND OUTER ROLLER DAMAGED JUDDERGING WHEN CLOSING REPLACEMENT DONE.FUNCTION CHECK OK CYCLIC TEST OK.DIR ABLE TO EXTINGUSHER ON CLOSE. HAKIM/SHAIK 08.06.2023