What was found
AIRCRAFT REJECTED TAKEOFF AT 80 KNOTS DUE TO (L GEN) LIGHT TURNED ON IN EICAS. DURING MAINTENANCE CHECK, THE LT IDG WAS DETECTED WITH LOW OIL LEVEL. FAILURE WAS DEFERRED BY MEL 24-00-1, THE LANDING GEAR AND BRAKES WERE CHECKED BY CONDITION, BEING ALL CORRECT. THE REJECTED TAKEOFF INSPECTION WAS PERFORMED IAW MM 05-51-14, ALL CORRECT. DURING OVERNIGHT CHECK, THE LT IDG WAS REPLACED IAW MM 24-11-01, TESTED CORRECT.