As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A DISTINCTIVE ELECTRICAL BURNING ODOR IN FLIGHT. CABIN EXPERIENCED SLIGHT HAZE. PASSENGER IN 11A STATED SMOKE SEEN COMING FROM ABOVE SEATS 8 AND 9CD. MAINTENANCE R & R NR 1 ACM WITH OPS CHECK SUCCESSFUL. ACFT WAS APPROVED FOR RETURN TO SERVICE.