Train EB was applied while departing station in Auto mode. TC released EB - ok. Train proceeded in AM mode to next station. ~~~~~ 3643-Train EB was applied while departing station in Auto mode. TC released EB - ok. Train proceeded in AM mode to next station. CE checked 3643 no EB applied n train performance ok Depot 3643 EB operational check.  Found FC 933, 936 DOM for 1644 b1 during the train EB. Check against ER, EB occured during DIR drop. Check door 1644 b1 door operation okat. Postulate FOD caused DOM and Cle and Dislodged when TC cycled doors. To be further monitor Done by Luke 45212