As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE RPM SURGED AND FLUCTUATED. ENGINE LOST POWER. AIRCRAFT FLIPPED OVER DURING EMERGENCY LANDING. MAJOR DAMAGE, NO INJURIES. NO PROPELLER STRIKE. PRE TEAR-DOWN EXAM INDICATES THE ENGINE CRANKCHAFT IS BROKEN BETWEEN NR 2 AND NR 3 CYLINDERS.