As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUMES IN THE CABIN IMMEDIATELY AFTER RECIRCULATION FAN OFF STATUS MESSAGE. RAN CHECKLIST AND STOPPED THE RECIRCULATION FANS AS CABIN FUMES DISSIPATING. REMOVED AND REPLACED UPPER AFT RECIRCULATION FAN IAW AMM 21-25-01. OPS CHECKED GOOD.