As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED ON APPROACH THE RIGHT PROPELLER LOST ~300 RPM AND VISUALLY NOTICED THE RIGHT PROPELLER LOOKED OUT OF BALANCE. MAINTENANCE INSPECTED AND FOUND ONE BLADE TO HAVE PLAY. THE PROPELLER WAS REPLACED WITH NO FURTHER DEFECTS NOTED.