As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DIVERTION HAD GEN 2 OFF CAUTION MSSG - NO TIME TO RUN QRH. STARTED APU AND LANDED ORD - DECLARED EMERGENCY. UNEVENTFUL LANDING - NO OVERWEIGHT LANDING OR HIGH SPEED STOPPAGE.THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 19898639 WITH THE FOLLOWING CORRECTIVE ACTION: "REFERENCE CP 19902520 FOR REPLACEMENT OF GCU #2. / REFERENCE CP 19902533 FOR OPERATIONAL TEST OF IDG #2."