Train doors at car 1515 A1 door were notproven closed. TC recycled train doors a few times but to n o avail. Staff(NEW) assisted to push close'A1' door at car1515 in close position - ok. ~~~~~ Train doors at car 1515 A1 door were not     #1515-A1 door LHS door wobbly.RHS door ok,LHS inner door roller damage.Replace door roller.Service guide rail,J-rail no sign of FOD.Conduct door cyclic few times ok.Check actuator and manifold no abnormalities.10/20mm ok.Door static test ok. Done by Haslan/Asruddin. 29/05/23