What was found
AIRCRAFT REJECTED TAKEOFF AT 75 KNOTS WITH 74,600 KG WEIGHT DUE TO LEFT WINDOW NUMBER 2 OPENING. MAINTENANCE PERSONNEL PERFORMED TO LEFT NUMBER 2 THE OPERABLE WINDOW OPERATIONAL CHECK IAW AMM 56-12-11-720-803 AND OPERABLE WINDOW FUNCTIONAL CHECK IAW AMM 56-12-11-720-801, ALL CORRECT. THE HIGH ENERGY STOP INSPECTION WAS NOT NECESSARY DUE TO THE MAXIMUM GROSS WEIGHT 79 015 KG AND BRAKES ON SPEED 110 KNOTS WERE NOT EXCEEDED IAW MM 05-51-07.