As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING PRACTICE LANDINGS, A LOUD ENGINE NOISE WAS HEARD, FOLLOWED BY A LOSS OF POWER, WHEN CLIMB POWER WAS APPLIED. AIRCRAFT RETURNED TO BASE. POST-FLIGHT INSPECTION FOUND THE NR 3 CYLINDER EXHAUST PIPE HAD BROKEN. THE PLASTIC COOLANT RESERVOIR HAD MELTED IN SEVERAL PLACES; THE UPPER IGNITION LEAD HAD BURNT AND THE SPARK PLUG HAD BLOWN OFF.