As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON FINAL APPROACH NR 2 ENGINE COMPRESSOR STALL OCCURED FOLLOWED BY HIGH PITCH WHINING. PILOT SHUTDOWN ACFT AND AUTOROTATED, LANDED. UPON INVESTIGATION COMPRESSOR BLADE WAS FOUND LYING IN INLET SCREEN. UPON FURTHER INVESTIGATION 1ST STAGE COMPRESSOR WHEEL WAS MISSING THE AFFECTED BLADE AND THERE WAS DAMAGE TO 2ND STAGE COMPRESSOR. POWER SECTION WAS REPLACED WITH SERVICEABLE UNIT AND RETURNED TO SERVICE.