As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX INFLIGHT T9663/04OCT SEA TO SFO - LEFT GENERATOR FAILED AND RIGHT GENERATOR ON MEL. ONLY AUXILIARY POWER UNIT GENERATOR OPERATING. LANDED PDX WITHOUT INCIDENT. REPLACED LEFT GENERATOR CONTROL UNIT BUS CONTROL UNIT AND LEFT BUS POWER RELAY. SYSTEM GROUND CHECKED NORMAL OPERATION.