As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. DURING CRUISE, THE RIGHT FORWARD PILOT/CO-PILOT WINDOW PANE CRACKED. AIRCRAFT PRESSURE WAS MAINTAINED. REMOVED AND REPLACED THE R1 WINDOW ASSEMBLY IAW AMM 56-11-01 (AALA20170202021) AND THE WINDOW HEAT CONTROLLER UNIT IAW AMM 30-41-01. OPERATIONAL CHECK GOOD.