As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1490 - CLT - ODOR - FLIGHT ATTENDANTS NOTICED A PUNGENT ODOR THROUGHOUT THE CABIN ABOUT THE TIME OF DESCENT. UPON LANDING ODOR SEEMED TO DISSIPATE. MAINTENANCE FOUND OIL IN COMPRESSOR DRAIN OF APU. REMOVED AND REPLACED THE APU ASSEMBLY, RECIRCULATION & OZONE FILTERS.