As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COCKPIT AND CABIN HAS AN OVERWHELMING ODOR OF URINE. CLEANERS SPRAYED AIR FRESHENER AND DEODERIZERS IN CABIN AND LAV, BUT EVEN WITH THE EXIT DOORS OPEN AND APU AIR TO VENTILATE, THE ODOR IS NOT REMOVED. REMOVED FWD PIT AFT WALLS. NOTED RESIDUAL WASTE FLUID BELOW RECIRCULATION DUCTING. CLEANED AREA. R & R RECIRCULATION FILTERS IAW AMM 21-21-41 PB401. INSTALLED PANELS IAW AMM 25-54-12.