As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS REPORT STRONG SMELL OF BURNING RUBBER IN THE AFT GALLEY. ACCOMPLISHED JOB CARD 26L00021001 (CABIN AIR QUALITY TROUBLESHOOTING) AND FOUND NO DISCREPANCY WITH ODOR ON THIS AIRCRAFT. REMOVED AND REPLACED HEPA FILTERS AS PRECAUTIONARY.