As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATION PERSONAL FUMES/ ODOR FROM FORWARD ENTRY OVERHEAD VENT. PERFORMED OPERATIONAL CHECK OF BOTH LEFT & RIGHT AIRCRAFT PACKS. REMOVED AND REPLACED COALESCER BAG, PERFORMED LEAK CHECK OF THE RIGHT COALESCER AS REQUIRED. NO LEAKS NOTED AT THIS TIME.