What was found
(CAN) CLIMBING THROUGH 13,000 FEET, APPROXIMATELY 4 PSI CABIN PRESSURE, CAPTS WINDSHIELD POPPED WITH A NOTICEABLE PRESSURIZATION LEAK. RETURNED. WINDOW INSPECTED, NO DEFECTS NOTED. WINDOW ATTACHED BOLTS WERE RETORQUED. AIRCRAFT PRESSURIZED TO 3 PSI, NO PRESSURIZATION LEAK NOTED. WINDOW RESEALED.