What was found
AT CRUISE, FL 410, WITH WINDSHIELD HEAT ON, OUTER PANE OF COPILOT'S WINDSHIELD SPIDER-CRACKED. THE CREW BEGAN A DESCENT AND LANDED AT THE NEAREST AIRPORT, INSPECTED THE WINDOW AND WITH FLIGHT MANUAL PROVISO, FLEW TO HOME BASE. NO PRIOR WARNING OR INDICATION OF FAILURE WAS PRESENT.