Pax feedback to staff(KRJ) there was rubbing sounds heard from the train in car 1511. Staff(CCK) che cked the train and reported no abnormal noise heard and no a bnormalities observed in train from CCK NB - BGB NB. ~~~~~ 1511 Pax feedback to staff(KRJ) of rubbing sounds heard from  train. Staff(CCK) checked the train and reported no abnormal noise heard and no abnormalities observed in train from CCK NB - BGB NB. CE feedback:(1511) check n found no.1 end gangway footplate having rubbing noise. Suspect footplate below plastic worn-off.(0849hrs)  1511 #1E gangway footplate teflon slide plate found worn-out - replaced. Security/function check - OK.  Hanafi/Chan SW 44841