Pax feedback to staff(YIS) that one of the train door is shaky while closing at car 1673 A1 door. St aff(NOV) confirmed shaky in closing. ~~~~~ 3673 Pax feedback to staff(YIS) that one of the train door is shaky while closing at car 1673 A1 door. Staff(NOV) confirmed shaky in closing. CE:1673 check n confirmed bogie1 A1 door shaky when open/closing ops.Suspect door's roller faulty."  Check and found #1673 A1 door LHS outer roller damage, c/o both door to black iron roller done. Mating strip, DLS red line present and locknut secure, DSS, push pull ok, cycle door and static test ok. Done by: Koh and Jack. 23/06/2024.