Train doors at car front DT door A1 werenot proven closed. TC opened and closed a few times to clea r fault. ~~~~~ Train doors at car front DT door A1 were   OPS 10-FAULT: #3520 DT DOOR A1 WERE NOT PROVEN CLOSED. ACTION: CHECKED DOOR OPERATION OPEN/CLOSE. FOUND #3520-A1 DOOR CLOSE TIMING SLOW(3.7SEC). CONDUCTED MANUAL CHECK AND FOUND RIGHT HAND SIDE DOOR SQUEAKING AND STUCK. CONDUCTED CLOSING RESISTANCE MORE THEN 11KG. RAISE OPS 20 TO FOLLOW UPHAIRUL,14/07/2020. ops 20 to follow up 3520 A1 door .    OPS 20-FAULT: #3520 DT DOOR A1 WERE NOT PROVEN CLOSED. ACTION: REPLACED THE DOOR ACTUATORS DONE-OK. SECURITY & FUNCTION CHECK DONE-OK. OPEN & CLOSE DOOR ABLE TO SYNCHRONISED WITH OTHER DOORS. PERFORM DOOR GAUGE TEST CHECKED DONE-OK. DIR & DOOR INDICATION LIGHT OKSHAHRIE/ALBARADO/BUDIMAN,14/07/2020