As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG MUSTY ODOR REPORTED BY FLIGHT ATTENDANTS. PACK ON HIGH ODOR DISSIPATES. MAINTENANCE PERFORMED J/C 33L00021001 - NO DISCREPANCIES. NOTED ON GROUND. NOTE: HEPA FILTER(8EA) REPLACEMENT PROGRAMMED. PHL MAINTENANCE REMOVED AND REPLACED APU ASSEMBLY AND HEPA FILTERS.