(17 Jul 2017, 8:23 pm)Stuartphin1639 wrote Surprised due to the accident with a gas bus on the X21
Going by the timings reported, 4811 will have more than likely been on the X66/X67 at the time the incident with the gas bus (4813) happened near Aycliffe Village as the incident apparently occurred around 6pm (presumably was the 17:30 X21 off Darlington).