As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIGHT OIL COATING ON RT ENG NACELLE & PROPELLER BLADES. APPEARS TO BE COMING FROM PROPELLER HUB. REMOVED THE SPINNER & PISTON TO REPLACE ORINGS. REPLACED ORINGS, PN C3317-20 & C33160426-2, PERFORMED ENG RUNS & NO LEAKS NOTED. ACFT WAS RETURNED TO SERVICE.