I had the same issue with 47376 when the the loco turn up in the post today. One end front windows loose in the cab. Took the 5 screws out. Body come off with just cab light wires attached to the circuit board. I left them in and removed the cab interior. Fortunately the windows glazing just clipped back in and then just carefully put the cab interior back in. Should be a quick fix instead of sending the loco back to the retailer. Also had 47526 turn up at the same time . Both fantastic models from Bachmann. The sound deluxe models are worth every penny. The new Bachmann 47 and accurscale deltic set the benchmark now for model trains. I am sure the accurscale 37 will do the Same along with the 92 and 31.