TC feedback intermittent DMI lighted upat Front M2. Staff(RFP) checked and confirmed Front M2 A4 do or did not open. Staff(RFP) isolated the defective doors in close position. ~~~~~ 2604 TC feedback intermittent DMI lighted up. Staff(RFP) confirmed 2604 A4 door did not open. Staff(RFP) isolated the defective doors in close position. CE: 2604 A4 door was isolated by station's staff.  2604 A4 door FC (Open Operation Time-out). Door cyclic checked/found abnormal noise at J-rail. Used scope to check/found LHS door leaf outer rollerdelaminated. OPS 20 raised to replace roller.  Raja/Aiman/Irwan Masop 45076 To replace 2604 LHS Outer roller.  2604 A4 LHS door outer rollerdelaminated & inner roller loose, RHS door outer rollerworn out & pitted, inner roller loose. Replaced both LHS/RHS door rollers(4 pcs). Cleaned J-rail/guide rail, weather strip condition, door gap (64.2mm) & no FOD was detected. Door cyclic test, no DIR lit up when all doors were closed.  Sarma/Sugu/Alan/Lee PT 45076