EB applied in AM while departing from station due to train door status lost. TC reported rear DT car'B2' door lost proven close status momentarily while train was moving. Reset EB - ok. Fault recurred intermittently aft ~~~~~ 3650 EB applied in AM departing station due to train door status lost. TC reported rear DT 3649'B2' door lost proven close status momentarily while train was moving. Reset EB - ok. Fault recurred intermittently after departing ORC NB. Staff (ORC) checked and feedback that the door closed and opened again by itself was train was dwelling at station. After all doors closed the affected door was not proven closed even though it was physically closed. The door light kept lighting up while train was moving. Thereafter VOBC 1332 turned passive due to doors closed and locked failure and EB was applied. Reset EB - ok. VOBC remote reset - ok. Staff (ORC) isolated the affected train door in closed position at NOV NB. CE : 3649 B2 door was isolated. No recurrence of EB applied.  3649 B2 door checked door guide, no FOD found. Door weather strip & door mechanism checked - OK. Conducted door open/close operation - OK. No DIR indication at TIMS.    OPS 20 raised to follow-up.  Daniel/Redzwan 45439

 3649 B2 door performed the following checks :
No FC.
Replace door operator.
FOD found: N
Weather strip condition ok: Y
Roller condition : ok
Clean J-rail & guide rail: Y
Door cyclic test 20x, DIR extinguish ok: Y
TIMS door static timing test pass: Y
Door close switch actuating  ok: Y
Door operator S/N :-
Old : 1507W02001S021
New: 181F005S022
 Sarma/Lee PT/Anand/Shafie/Kamarul
28/05/2024