As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 PROPELLER TIME TO UNFEATHER WAS 50 SECONDS. REMOVED FROM SERVICE. ON GREASE LEVEL CHECK, FOUND GREASE TO BE DARK BROWN IN COLOR AND VERY LOW VISCOSITY. POSSIBLE CONTAMINATED WITH ENGINE OIL. REPLACED THE P[ROPELLER GREASE AND ALSO THE OVERSPEED GOVERNOR. RETURNED TO SERVICE.