As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT DIVERTED TO MSY DUE TO STRONG ODOR IN COCKPIT AND CABIN. CREW FOUND ODOR TO BE UNBEARABLE AND ALL FOUR DEVELOPED HEADACHES AND SCRATCHY THROATS. PERFORMED TROUBLESHOOT CABIN AIR QUALITY JOB CARD WITH NO POSITIVE FINDINGS. DURING FERRY TO CLT, NO ODOR IN COCKPIT OR CABIN NOTED.