TIMS showed Front DT car 'B4' train doors faulty. Staff (YIS) checked and confirmed 'B4' train door indication was flashing. The flashing stopped after train do ors opened and closed at CBR1. TC confirmed fault cleared. S ~~~~~ 3620 TIMS showed B4 train doors faulty. Staff (YIS) confirmed 'B4' train door indication was flashing. Flashing stopped after train doors opened and closed at CBR1. TC confirmed fault cleared. Staff feedback no obstruction, no abnormalities.  3620 B4 door FC 992/993. 1) FOD found: N 2) Weather strip condition ok: Y 3) Roller condition ok: N, 3620 B4 RHS outer rollerdelaminated 4) Clean J-rail & guide rail: Y 5) Push/pull door smooth & no wobble: Y 6) Door cyclic test 20x,DIR extinguish ok: Y,after rectification 7) TIMS door static timing test pass: Y, after retification 8) Door lock switch red line flush with durface for positive        latching: Y 9) Door close switch actuating plate distance ok: Y Replaced 3620 B4 RHS outer roller. Function check door operation - OK.  Raja/Farid/Mohd Irwan 45179