As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED BURNING ODOR IN CABIN WITH PACKS OPERATING ON APU BLEED. MAINTENANCE INSPECTED AND FOUND ODOR COMING FROM PASSENGER-CABIN SIDEWALL LIGHT FIXTURE BRACKET. THEY REPLACED THE PASSENGER CABIN LIGHT IAW 145 33-21-06. OPS CHECKS WERE GOOD.