As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A PASSING 12,000 FEET LOUD BANG FROM RT FRONT SIDE OF AIRCRAFT FOLLOWED BY AIRCRAFT DEPRESSURIZATION. SUSPECT HAIL STORM PRIOR TO TAKEOFF EMERGENCY ACCESS FOR F/O SLIDING WINDOW DISLODGED RE-INSTALLED ACCESS PNL, OK FOR CONTINUED SERVICE.