Train doors at car 3627 'A4' door were not proven closed. TC opened and closed once to clear fault. ERS-10 ~~~~~ Check Tims observed once (FC-083)Further check no FOD stuck at bottom guide rail.Mating strip within cateria.Push/pull resistance L=8.8kg & R=9kg,after cleaning L=6kg,R=5kg.DLS & DSS check ok.Conduct door static test ok.Door cyclic 50x ok. Done by Sanip/Faddzal/Deeshan.