As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUMES IN REAR OF AIRCRAFT PHYSICAL SYMPTOMS OF HEADACHE EYES AND PASSENGERS VOMITING. EMERGENCY DIVERT. FIRE DEPT FOUND ELEVATED CO. CORRECTIVE ACTION LP164569 ITEM 1 -- DURING TROUBLESHOOTING USE TSM 05-50-00-810-831-A FOUND GREEN HYDRAULIC TO BE OVER FILLED AND COMING OUT OF THE OVERFLOW DRAIN VALVE CLEAN UP AREA AND PERFORMED DECONTAMINATION OF ENVIORNMENTAL CONTROL SYSTEM REF AMM 21-000-615-802-A NO ODOR NOTED AT THIS TIME .