As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COCKPIT WAS ENVELOPED WITH SMOKE UPON ARRIVAL TO A/C. A/C ELECTRICAL POWER WAS BEING PROVIDED BY GROUND SERVICE BUS. THE MAIN BATTERY SWITCH WAS OFF AND THE PACKS WERE NOT RUNNING. FOUND STATIC INVERTER WITH EVIDENCE OF BURNING. REPLACED STATIC INVERTER PER AMM 24-33-03-4.