As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE 600 HR/24 MONTHS INSPECTION ON ENGINE AND AIRFRAME, FOUND MISSING RIVETS ON COMPRESSOR WASH NOZZLE PLUG. REMOVED DEFECTIVE PARTS AND FOUND METAL FROM RIVET SHAVINGS IN COMPRESSOR WASH NOZZLE. SUSPECT METAL MAY HAVE PASSED THRU COMPRESSOR WASH NOZZLE HOLE (0.054) TO COMPRESSOR AXIAL WHEEL OF ENGINE. SMALL EROSION FOUND ON COMPRESSOR WHEEL. THE PLUG WAS REPLACED AND THE EROSION FOUND WAS WITHIN LIMITS.