3663 - TRAIN EB DUE TO OBSTRUCTED MOTION ~~~~~ 3663 - TRAIN EB DUE TO OBSTRUCTED MOTION.(REFER BY SIG L).  3663 found SNR contactor contacts no [13,14] wire no[4W,7007] intermittently high resistance. Replaced #3663 SNR conactor with new spare. Function check new contactor terminal [13,14] resistance ok.  Shaun Lau 45406