over the last couple of weeks every time I am dropping off or picking up at Peterborough i seem to see class 91 sets either being hauled by other locos (67 and 91 and I think a 90 but wasn't close enough to identify it) or sat in the centre road being undertaken by trains using platform 1 as a through road. You always used to see the occasional one BUT it seems to be happening a lot of late but not the HST's . Is the fleet suffering a spate of failures or is it just I'm lucky/unlucky to be in the right place at the right time ?