Inter City - Short Formations #2

The MRUA has been advised that the current short formations of certain Inter City services are down to the following reasons:

1. A number of carriages are out of service having 'wheel flats' corrected - a condition caused by slippery rails conditions.
2. A number of carriages are out of service at any one time undergoing heavy maintenance under a periodic programme that takes place every few years.  The cover usually provided for such maintenance has been reduced by the wheel flats issue.
3. Following accident damage to a couple of Diesel Multiple Units (DMUs) elsewhere on the GA network a couple of Inter City carriages (hauled by a diesel) are being used in their place. GA are trying to source replacement DMUs but at the time of writing there are none going spare in the UK.