As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GNDED. PAX REPORTS POSSIBLE SMOKE COMING FROM PSU ABOVE SEAT 14 ABC. FLIGHT ATTENDANT SMELT SWEAT BURNING WHICH MOST LIKELY CAME FROM E CIGARETTE EVENT NEAR THE REAR OF THE CABIN. INSPECTED AREA BEHIND PSU PANEL AT ROW 14 ABC, NO DEFECTS NOTED. REINSTALLED PSU PANEL IAW AMM 23-73-45.