3656 A1 Train doors not proven closed at BSH2 and BDL2. ~~~~~ 3656 A1 Train doors not proven closed at BSH2 and BDL2. TC opened and closed twice - ok. Staff (CTH) checked and feedback no abnormalities observed. Train doors opened and closed as per normal.    CE: T420(3656) check A1 door ops found ok. Door proven fully closed. No abnormality found during monitoring.  3656 A1 LHS outer door roller delaminated - Replaced. Clean J-rail & guide rail. Weather strip checked - OK. Tested door operation for open/close - OK. Door gap & static test - OK. Sugu/Anand/Shafie/Lee PT 45189