Train doors at car 3623 were not provenclosed. TC recycled train doors once - ok. Staff(JUR) checke d and confirmed no train doors abnormalities. Fault did not recur at subsequent stations. Train doors at car 3623 were n ~~~~~ During 3weekly check ok#3623 all door ok.no FOD found.perform    20mm check ok.side finding found #3624 LHS A1 door and #1624 LHS B3 door roller faulty.OPS 20 raised to follow up Surendar 12.07.2023  #3624 A1 door LHS inner roller C/O.#1624 B3 door LHS outside roller C/O.function test ok.door cyclic test ok Teh / Jimmy / Genesan / Raghu 12.07.2023