Train jerked when arriving station in AMsince DBG NB.No wheel slip/slide indication or other faul t indications.  ~~~~~ 3666 Train jerked when arriving station in AM since DBG NB. No wheel slip/slide indication or other fault indications. CE : 3666,train ride, found very slight jerky ok. Train performance ok.  3666 No brakes/propulsion related FC on TIMS. ER downloaded, found #1666 has small spikes of BCP pressure when arriving at station.    Checked all CCD fuses/shoes - ok. Found #1665 A1 & A4 wheel flat (>50mm). Notif 2595403 raised for wheel profiling. Further checks found #2666 CHRE brunt. Replaced burnt resistor. BCU swapped from 2666 to 1666 for monitoring. After swap BCU s/n: #2666: 1537245 #1666: 1544290  Shafie/Anand/Alan/Lee PT 45415