The reason was as follows;
the 0800 Belfast - Dublin failed before departure or in the depot.
NIR CAFs 3005 + 3002 worked the 0800 (+45) ex Belfast, 1120 (+15) ex Dublin, 1405 ex Belfast and 1900 ex Dublin.
These sets have been busy covering for the DD on the 5th, 9th & 11th October.
the ICRs have been busy, covering the 0735 & 1650 from Dublin and the 1035 & 2005 from Belfast on 5th, 7th & 11th October.
@jhb171achill on Monday as far as I know, either the 1320 ex Dublin or 1405 ex Belfast (or both) failed at Portadown. Most likely the 1405 set as was reported as 35 late from Portadown.
the 1605 from Belfast & 1900 from Dublin were a 6 car 3000 class railcar.