As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUSPECTED FUME EVENT DURING DECENT. SMELL SIMILAR TO CRAYONS. SMELLED BY AFT FA AND PAX. ALSO DETECTED IN FLIGHT DECK. ISOLATED FUME TO PACK 1-ACCOMPLISHED TSM 05-50-00-810-831 FOR CABIN ODOR. RAN PACK 1 ON APU BLEED + ENG BLEED. FOUND PAC 1 CAUSE OF FUME EVENT.