What was found
(CAN) BEFORE WINDSHILED CRACKED IN-FLIGHT, THE GLASS WAS DELAMINATING AT APPROXIMATELY 4 SQUARE INCHES IN THE LEFT BOTTOM CORNER. DELAMINATION AND LACK OF SEAL IN WINDOW FRAME MAY HAVE CONTRIBUTED TO OVERSTRESS IN TIME. SUBMITTER SUGGESTED FACTS TO REDUCE POSSIBLE RECURRENCE, WHEN WINDOW DOESN'T SIT 100 PERCENT IN PLACE, NEVER OVERTORQUE WINSHIELD SCREWS AND BE SURE TO PROVIDE PROPER SEALS AND SUFFICIENT SEALANT.