As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED PARTIAL LOSS OF POWER IN FLIGHT ON RT ENG, ENGINE RUNNING ROUGH. AFTER BOTH ENGS FULL POWER FOR ABOUT 30 SECONDS, POWER CAME BACK. ENGS WERE BROUGHT BACK TO CRUISE & THE RT ENG BEGAN RUNNING ROUGH. PERFORMED A PRELIMINARY INSPECTION & FOUND METAL CONTAMINATION IN OIL SAMPLES. FURTHER INSPECTION LEAD TO EVIDENCE OF DAMAGE TO THE CRANKSHAFT. FINAL RESULTS PENDING TEAR DOWN ANALYSIS.