As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON THE PILOTS PREFLIGHT, NOTICED A NOISE WHEN SPINNING THE RT PROP. THE ENG WAS INSPECTED, INSPECTION REVEALED THE POWER TURBINE BLADES WERE COMING LOOSE FROM THE POWER TURBINE DISK. THE ACFT WAS GNDED. A MORE IN-DEPTH INSPECTION WILL BE PERFORMED AT A LATER DATE.