As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER A FIELD EVENT, THE REQUIRED VIBRATION TESTING INDICATED UNACCEPTABLE 1ELP LEVELS AROUND .8 IPS. FIELD TROUBLE SHOOTING DISCOVERED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE HAS CONFIRMED ONE MISSING 3RD STAGE IP BLADE. THE IP ROTOR HAS BEEN HELD FOR FURTHER INVESTIGATION IF NECESSARY.