TC reported TiMS showing obstacle detected at car 3615 B4 door. Station staff(YIS) checked and confi rmed no abnormalities at car 3615 "B4" door. ~~~~~ 3615 TC reported TIMS showing obstacle detected at B4 door. Station staff (YIS) confirmed no abnormalities at 3615 B4 door. OE request 3615 B4 door train door operational check.  N obstacle detected at car 3615 B4 door. 3615-No door fault register in ER 3615-Found  B4 Door LHS door Roller chip off. RHS Door wobbled during final opening stage. Raise OPS20 for roller c/out. Au TK 44817 TO FOLLOW-UP RECTIFICATION 3615:B4 door-Checked & found both door roller damaged. Replaced door roller & cleaned up J-Rail. Checked & tested door operation -all OK.No DIR. LeePT/Sugu/Shafie/Kamarul 44817