On Tuesday, April 24, 2012 11:26:45 AM UTC-4, Steve Koerner wrote:
The structure immediately under the handles had clearly collapsed.
There is no such solid material between the inner and outer laminate
on mine.

The backing plate has resolved the problem quite well.

I've looked at my hinge bolts a number of times, but can't detect any problems. Are there any symptoms that precede bolt failure, i.e. loose handles?

TIA,

Frank (TA)