The Office of Rail and Road (ORR) has published its interim report into the cracks found in Hitachi's Class 800 trains.
GTR is sub-leasing six of its Class 387/2 Gatwick Express trains to GWR to assist with capacity following the cracks found in the Class 800s.
The ORR has published findings showing that train operators kept passengers well informed during the Class 800 cracking issue.
The ORR has launched a 'lessons learned' review to examine how the cracking issue in the Hitachi Class 800 trains occurred.
Hitachi Rail has issued a service recovery plan for reintroducing the Class 800 trains back into service, following the detection of cracks.