Hi, all.....I too have fallen foul of the dreaded Class 31 rot. Bought the Dutch version from Pecorama about 3 weeks ago (New), went to pet a decoder in it, and noticed the buffers drooping, tried to straighten them ,and the whole lot snapped off.
I tried a repair, but more and more bits kept snapping off as I tried to fix it. Please note that I was on holiday when I purchased the loco, and that I live about 150 miles from Seaton so a return was not possible. Then, just as I thought I was winning, the other end snapped off!
I was more successful with the other end, using 2mm square brass - bent to an L shape and superglued.
Then I found out about the rot and e-mailed Hornby. I got a reply a couple of days later, telling me to post the loco to Hornby and they will replace the chassis......when they get one.
I sent it on Friday (31/08/12), so will just have to wait and see what happens.
TTFN.
Mick