As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUSPECTED AIR QUALITY/ FUME EVENT PACK 2. DESCRIPTION OF ODOR/FUMES: PERSISTENT, UNFAMILIAR CHEMICAL SMELL DURING CRUISE. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-ACCOMPLISHED LEVEL A DECONTAMINATION IAW AMM 21-00-00. NO ODORS DETECTED. A/C OK FOR SERVICE.