As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EUG - EN ROUTE PDX TO MFR, CREW REPORTED LEFT PROPELLER VIBRATION. AIRCRAFT DIVERTED TO STATION, LANDING WITHOUT INCIDENT. MAINTENANCE DISCOVERED ONE PROPELLER BLADE DE-CE BOOT MISSING. REPLACED LEFT PROPELLER ASSEMBLY WITH SERVICEABLE UNIT. AIRCRAFT RETURNED TO SERVICE. (Z)