As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE PACK SYS HAD A STANGE ODOR. THE ACFT LANDED WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE ACFT AND FOUND PACK 2 TO BE CAUSING THE ODOR. PACK 2 WAS PLACED ON MEL, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE. MAINTENANCE OPERATIONALLY TESTED THE NR 2 PACK, FOUND NO ODORS PRESENT IN PACK 2. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.