As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT, PILOT REPORTED ENGINE POWER LOSS FOLLOW BY A BURNING SMELL. VISUALLY INSPECTED ENGINE AND NOTICED #4 CYLINDER CRACK AT THE CYLINDER WALL. REMOVED CYLINDER AND FURTHER INSPECTED NOTICED THE CRACK TO START FROM THE CYLINDER WALL WHERE IT MEETS THE HEAD OF THE CYLINDER. REMOVED CYLINDER WAS SEND TO CERTIFIED ENGINE UNLIMITED FOR FURTHER EVALUATION OF WHAT COULD CAUSE THIS MALFUNCTION TO ACCORD.