Top crack set off by a phone.

And maybe a little low humidity (?)   This custom OM is owned and built by Boston singer / songwriter / guitarist Chris LaVancher at Alan Caruth's shop in 2004.  While at a recent gig, a cell phone was accidentally dropped by someone on stage.  The guitar was on a stand when the phone impacted the top, setting off a 6" crack.

The crack was slightly open so I humidified the guitar for 24 hours and it closed enough to glue up.  Hot hide glue, two pieces of plexiglass (one inside, one outside) and a few clamps make up the first part of this repair.  Next up will be gluing in reinforcement cleats to help keep the crack from reopening.