Train EB tripped in AM when departing platform. TC reset EB - ok. Train continued in AM the next sta tion. ATS alarm indicated, "CBTC Applied EB due to Train mov ed without authorization. " Train EB tripped in AM when depa ~~~~~ 3677 EB tripped in AM when departing platform. TC reset EB - ok. Train continued in AM the next station. ATS alarm indicated, "CBTC Applied EB due to Train moved without authorization. CE: 3677 All  brake Operations OK and All Doors Proven Closed.  3678 No FC registered. 3678 A1 Tested door operation found jerky. Checked door roller, weather strip, J-rail - OK. Replaced Door Operator & tested operation - OK. Door open/close timing, cyclic test - OK. No DIR lited during testing. Door Gap: OK. Old: 162W02000S030 New: 181F0055019 Sarma/Alan/Anand/Lee PT/Kamar 45430