Hitachi have declared that 38 of the 93 GWR sets are now available for traffic. A further 16 are in the queue for Chlorination (of the water tanks - standard procedure for lying vehicles) before they can enter traffic and the 6 that are outstabled at various locations off depot need to be brought back and checked out.
There is therefore a way to go before GWR can get back to some semblance of normality.
The vinyl/paint issue is irrelevant to the problem - it is the specified (as opposed to supplied) composition of the metal and it's design suitability for the yaw bolster/jacking point application that is currently a significant focus of attention, amongst other lines of enquiry.
Interesting. Thanks.
I think the vinyl/paint discussion started with the impact on ability to recognize cracks though, not a suggestion that somehow it was contributing to the cracking.