What was found
LOCATION APPROX 30 DEGREES WEST AT FL 320 - IAS M .8 AS REPORTED BY THE FLIGHT CREW: WHILE IN CRUISE THE FLIGHT CREW NOTICED A CRACK STARTING IN THE UPPER LEFT CORNER OF THE CAPTAINS FORWARD WINDOW (NR 1) WITH IN A FEW MINUTES THE CRACK HAD SPREAD ALMOST ALL THE WAY TO THE FAR RIGHT. SHORTLY AFTER THAT THE CREW OBSERVED ARCING OF THE WINDOW HEATER ELEMENT AND LEFT THE WINDOW HEAT IN THE OFF POSITION. APPROXIMATELY ONE MINUTE LATER THE ENTIRE VIEWING AREA OF THE WINDOW CRAZED. THE FLIGHT CREW OBSERVED THE CRAZING TO BE THE OUTER PLY AND CONTINUED THE FLIGHT WITHOUT FURTHER INCIDENT.