As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) POWER SECTION DEVELOPED COMPRESSOR STALLS. INSPECTION FOUND PIECES OF METAL INSIDE INTAKE PLENUM WITH BENT AND DAMAGED ROTOR AND STATOR VANES. THE SOURCE OF THE FOD WAS BELIEVED TO BE RETAINING RINGS AND PINS (P/N 30113032) WHICH LET GO AND WENT INTO THE COMPRESSOR WHEN THE STALLS OCCURRED. THE RETAINING RING AND PIN ARE FROM THE 1ST STAGE WHEEL REGION.