As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT PARKED ON HOT RAMP WITH INTERIOR REFLECTIVE SHADES INSTALLED IN THE COCKPIT. PRIOR TO PREFLIGHT, CREW STARTED APU FOR AIR CYCLE MACHINE(AIR CONDITIONING), UPON REMOVAL OF SUN SHADES IN THE COCKPIT, THE NR 2 PILOT WINDOW INNER PANE SHATTERED.