What was found
FLIGHT ATTENDANT REPORTED A MUSTY ODOR IN AFT PORTION OF CABIN. ON LANDING, FLIGHT ATTENDANT REPORTED WORSE CONDITIONS, MUSTY ODOR AND PASSENGER COMPLAINTS. FORWARD FLIGHT ATTENDANT REPORTED SLIGHT ODOR IN AIRCRAFT ON LANDING. MAINTENANCE ACCOMPLISHED JOB CARD 26L00021001 AND FOUND AFT GALLEY EXTRACT FILTERS COMPLETELY OBSTRUCTED. INSTALLED SERVICEABLE FILTERS PER JOB CARD 26L00021001, STEP 5E AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK. AIRCRAFT WAS GROUNDED.