As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE ENGINE WAS RETURNED TO THE REPAIR STATION FOR DAMAGE NOTED ON THE HPC ROTOR BLADES. THE DAMAGE WAS FOUND DURING A POST FLIGHT BORESCOPE INSPECTION FOR VIBRATION. DISASSEMBLY REVEALED HPC ROTOR LIBERATED THE OUTER LE OF ONE CORNER OF ONE MAIN BLADE ABOUT THE SIZE OF A THUMB NAIL.