As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: #1 GEN FAULT IN ROUTE/DESCENT FAILED TO RESET PER ECAM PROCEDURE/STARTED APU/ DECLARED AN EMERGENCY AND LANDED NORMALLY AT MSP WITHOUT FURTHER INCIDENT. REPLACED #1 GCU (GENERATOR CONTROL UNIT) AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 24-22-34.