As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 5982258) SHIP 3733 - SMOKE SHIP 3733 - SMOKE - OH ELEC LIGHT ILLUMINATED AND SOON AFTER SMOKE WAS COMING OUT OF THE COCKPIT VENTS. TURNED THE PACKS OFF AND THE SMOKE STOPPED. CORRECTIVE ACTION: MAINTENANCE FOUND SPCU STNDBY BREAKER OPEN. RESET BREAKER. RAN TEST ON OVERHEAD ELEC PANEL. FOUND FAULT ON AUX BATTERY PANEL. CLEARED FAULT. REPLACED SPCU AND AUX BATTERY CHARGER. AIRCRAFT RETURNED TO SERVICE.