Image 730018 & 730035, 14.18 Bletchley CS-Northampton EMD (5N99, 18E), site of Roade station

730018 & 730035, 14.18 Bletchley CS-Northampton EMD (5N99, 18E), site of Roade station
730018 & 730035, 14.18 Bletchley CS-Northampton EMD (5N99, 18E), site of Roade station 
 I am not sure as to why this 5N99 was taking place seeing 730018 and 730035 running from Bletchley to Northampton EMD at Kings Heath. It is seen passing Roade with a large X posted in the front window indicating a coupling fault on that end of the unit so could that be the reason for its short journey to the depot? 
 Keywords: 730018 730035 14.18 Bletchley CS-Northampton EMD 5N99 site of Roade station West Midlands Trains
730018 & 730035, 14.18 Bletchley CS-Northampton EMD (5N99, 18E), site of Roade station 
 I am not sure as to why this 5N99 was taking place seeing 730018 and 730035 running from Bletchley to Northampton EMD at Kings Heath. It is seen passing Roade with a large X posted in the front window indicating a coupling fault on that end of the unit so could that be the reason for its short journey to the depot? 
 Keywords: 730018 730035 14.18 Bletchley CS-Northampton EMD 5N99 site of Roade station West Midlands Trains

I am not sure as to why this 5N99 was

taking place seeing 730018 and 730035 running from Bletchley to Northampton EMD at Kings Heath. It is seen passing Roade with a large X posted in the front window indicating a coupling fault on that end of the unit so could that be the reason for its short journey to the depot?