As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED TO YYZ WITH ELECTRICAL PROBLEMS. RT GEN TRIPPED OFF ON TAKEOFF DRIVE LIGHT & EICAS ILLUM, DISCONNECTED IDG. OIL WAS FOULD LOW, SERVICED WITH 4 QUARTS OF OIL, NO EXTERNAL LEAKS EVIDENT. RAN ENGINE WITH IDG ON LINE FOR 20 MINS ALL OPS NORMAL. RE-INSPECTED IDG FOR LEAKS AND OIL LEVEL ALL OK.