(29 Sep 2015, 6:16 pm)mb134 wrote Seems like a pretty serious problem!
Any idea what caused it, or how long it had been like that?
Sounds like a version of limp mode, caused by running out of adblue!
1418 was also on 21A, 1512 replaced 4654 at 1145 so that may well have gone to Darlington also. 4658 definitely still at Stockton tonight.