As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:IN FUMES IN C/P DURING ENTIRE FLIGHT, SEEM TO BE COMING FROM EITHER PACK. ON GROUND FOUND R PACK EMITTING ODOR. DER R PACK PER MEL 21-38-1. PERF MAINTENANCE PROCEDURES. M 210419 ASSIGNED PLACARDS INSTALLED. REMOVED AND REPLACED RT WATER SEPARATOR IAW 21-55-03. PERFORMED ADJUSTMENT AND TEST IAW 21-55-00. ALL CHECK GOOD.