As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AS THE A/C WAS APPROACHING STAGING WITH A SLING LOAD, THE PILOT HEARD A LOUD BANG FOLLOWED BY A LOUD SCREECHING NOISE FROM THE ENGINE. THE A/C LANDED IMMEDIATELY WITH POWER AND THE ENGINE SHUT DOWN. UPON FURTHER INVESTIGATION, ONE OF THE COMPRESSOR FIRST STAGE ROTOR BLADES WAS FOUND BROKEN AT THE ROOT AND MISSING.