As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 4418 THE CREW REPORTED A STRONG SMELL IN THE COCKPIT. THE AIRCRAFT LANDED AT IOAH WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE LEFT HAND ACM. OPERATIONALLY TESTED WITH NO DEFECTS NOTED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.