As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR QUALITY EVENT OF DESCENT ( PACKS )-REF LP 3612799-1 - INSPECTED PACKS 1 & 2. DID NOT FIND CONTAMINATION. PERFORMED LEVEL A DECONTAMINATION OF ENVIRONMENTAL CONTROL SYSTEM IAW AMM 21-00-00-615-802-A. DID NOT FIND AN AQE TO PRESENT DURING THIS TIME. R/R AIR RECURC FILTERS AS PRECAUTION. THIS CLEARS DMI 3612794-2. MOC NOTIFIED PLACARDS REMOVED. .