Rear DT car train doors not proven closed. TC opened and closed train doors once - ok. ~~~~~ #3603 B1 DO c/o.   #3603 B1 door operator c/o done. DLS red mark visible, DLD rubber cushion ok. DCS ok. Door mating strip 63.9mm. Conduct door cyclic test few times ok. Door static test pass. Test door obstacle detection pass. Door operator KSF-B old s/n: 1405W0200415021 new s/n: 1503W0200115019 Done by: Haslan, Asruddin, Fauzi (15/12/23) 3604 - Rear DT car train doors not proven close d. TC opened and closed train doors once - ok. CE checked: 3603 All doors proven open and closed. Pls do a door mating check during close door operation.  FC-933-B1 door CLE happen once. Further check found distance of door open was 1392mm out of caterial, adjusr to 1405mm ok. During door cycle fault can duplicate. Observe door close in slow motion when near door fully close, suspect Door Operator having issue. Ops20 to follow up DO c/o. #3603 door mating string check found B2,B3,A2 caterial out, adjusted ok. Done by:Jack/Sanip/Rizman Date:14/12/2023