I have just posted on the 172 thread that all the London Midland 153 units seem to be out of service since December 12th. 9 or 10 of them I believe.
The 172s were supposed to replace the
LM▸ 150 fleet but it's been suggested for a while that LM want to keep some 150s and cascade their 153s.
EMT» were due to indirectly benefit from the LM cascade as they were due to get 156s off Northern as Northern got 150s off LM, but it could now be the case that EMT get the LM 153s.