#3609 A2 door heavy vibration when doors ~~~~~ #3609 A2 door heavy vibration when doors     Check the above mention reported #3609-A2 (LHS) door outer roller damage.Also found #1609-B4(LHS) door wobbly due to outer roller damage.Replaced both door location roller done. Check pull/push resistant,mating strip,DLS,DCS,DLD,DLS and DES ok.Clean J-rail,guide rail and FOD or rubbing mark.Accept #1609-B4 (LHS) door found FOD (20cents coin)Both door open/close and static test ok no fault code. Check by Saini/Asruddin. 04/06/23