we noticed the cabinet on the right side of the d/w had signs of warping at the bottom. the plumber pulled the d/w out. there were no signs of a leak coming from the back. it started to do a heavy spray water coming out of the side of the dw. the second rack is attached to a side mount. on the exterior right side the d/w was missing the washer and screw that holds. this has been happening for some time now.
a service tech came  he pulled the dw out and started a cycle. a few mins into the cycle the tech left "to go and help on another call". the tech left the d/w running and didn't return for well over 2 hours. once he did return he did not see any leak at that time (the cycle was finished before he returned). he was sent on a service call for a d/w leak and left dw running while.