As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER AT 9A REPORTED SMOKE & STEAM WITH BURNING SMELL NEXT TO SEAT. TURNED ON NR 1 PACK & OBSERVED CONDENSATION COMING FROM UNDER SEAT 9A. FOUND NR 1 RECIRCULATION SYS MUFFLER DISCONNECTED. SECURED MUFFLER IAW MM 21-24-02, NO BURNING SMELL, SMOKE OR STEAM OBSERVED AFTER TURNING ON NR 1 PACK. OPERATIONS CHECKED GOOD.