As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT AT CRUISE ALTITUDE GENERATOR NR 1 TRIPPED OFF LINE. GENERATOR NR 2 ABSORBED ELECTRICAL LOAD AND REMAINED WITHING NORMAL PARAMETERS. AIRCRAFT WAS DIVERTED TO CYUL FOR MAINTENANCE. NR 1 IDG WAS REPLACED WITH A REPAIRED UNIT. (M)