As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FLIGHT ATTENDANT AND PASSENGERS REPORTED AN ODOR IN PASSENGER CABIN AT ROWS 11 AND 22 (DIRTY SOCK SMELL). TURNED BOTH RECIRC FANS ON. FLIGHT ATTENDANT REPORTED SMELL WENT AWAY AFTER APPROXIMATELY 5-10 MINUTES. MAINTENANCE REPLACED HEPA FILTERS AS PER JOB CARD 03L00021001 AND MM TASK 21-21-23-404-059. GROUND CHECKED GOOD. AIRCRAFT OK FOR SERVICE.