As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL FLT 717 EN-ROUTE MUC - PHL. THE AIRCRAFT WAS GROUNDED. CREW REPORTS URINE ODOR THROUGHOUT THE ENTIRE CABIN FROM PUSHBACK TO TAXI IN. MAINTENANCE ACCOMPLISHED J/C 33L00021001 AND J/C 33L13038001. R&R L74 TOILET ASSY AND CLEANED THOROUGHLY UNDER TOILET. ALSO REPLACED CARPET AT L74 LAV.