As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN - INFLIGHT SEA-DFW CREW REPORTED LEFT GENERATOR FAILED AND AIXILIARY POWER UNIT WOULD NOT START. EMERGENCY DECLARED FLIGHT DIVERTED DEN LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT HAND ENGINE DRIVEN GENERATOR AND SERVICE APU OIL TO FULL. SYSTEM GROUND CHECK NORMAL OPERATION.