As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED IN CLT FOR CABIN ODOR. FUMES REPORTED DURING CRUISE AND DESCENT INITIALLY IN COCKPIT. PROGRESSIVELY GOT WORSE. INITIALLY SMELLED LIKE BURNING RUBBER. LATER SMELLED ACRID FLIGHT ATTENDANT REPORTED FUMES MORE LIKE ELECTRICAL IN FORWARD CABIN. REPLACED FORWARD CHILLER PER 25-34-51.