Train doors at car 3690 were not provenclosed. TC recycled train doors once - ok. Fault did not rec ur at subsequent stations. ~~~~~ Train doors at car 3690 were not proven     Check #3690-Tims shown A3 door CLE happen once,further check door mating,push/pull,DLS,DSS all ok.Door function ok. A1 door LHS found wobbling due to roller.C/O roller and found plastic stuck at weather strip.Remove ok and clean j-rail & guide rail.Door static and function test ok. Done by Sanip/Koh.  4/03/23