What was found
MUSTY SMELL IN CABIN. WHILE TROUBLESHOOTING FOUND LEFT FILTER NEW AND ALL DUCTS CLEAN. RIGHT RECIRC FILTER IS FAULTY. REPLACED RT RECIRC FILTER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MUSTY SMELL IN CABIN. WHILE TROUBLESHOOTING FOUND LEFT FILTER NEW AND ALL DUCTS CLEAN. RIGHT RECIRC FILTER IS FAULTY. REPLACED RT RECIRC FILTER.