Messy situation. Here’s hoping LNR source a replacement service for the route A.S.A.P. I doubt any 172s will be available while they’re still covering for Hereford stock.
Bletchley based train crew don't sign 172s (or 170s and 196s for that matter!) either. Certainly be interesting to see what comes of it now. Not good news at all for the Vivarail employees.