As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, CREW GROUND TRAINING THE AFT LT EMERGENCY EXIT EMERGENCY EVACUATION SLIDE WAS DEPLOYED FOR EVACUATION SIMULATION. AFTER SLIDE WAS FULLY DEPLOYED THE GIRT BAR WAS FOUND BENT. INVESTIGATION REVEALED GIRT BAR CRACKED ONE HALF OF CIRCUMFERENCE AT GIRT BAR AFT SLIDE ATTACH SLOT. GIRT BAR REMOVED FROM SERVICE.