As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE REMOVING THE ENGINE FOR A SCHEDULED OVERHAUL, WE NOTICED 5 RIVETS SHEARED OF THE TOP HALF OF THE INDUCTION AIR PLENUM BAND ASSY. A SHEARED RIVET HEAD CAN EASILY FIT THRU THE ENGINE INLET SCREEN AND COULD BE INGESTED BY THE ENGINE CAUSING GREAT DAMAGE OR TOTAL ENGINE FAILURE. (K)