As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4362 - AFTER SHUTDOWN AT THE GATE AND WITH THE APU AND NUMBER 2 PACK RUNNING, A/C CABIN AND COCKPIT FILLED WITH SMOKE. APU AUTO SHUTDOWN. AIRCRAFT REMOVED FROM SERVICE ISSUED MEL 49-1. REMOVED AND REPLACED APU AIRCRAFT RETURNED TO SERVICE.