What was found
(CAN) IN-FLIGHT, THE ENGINE WAS RUNNING ROUGH. NR 3 CYLINDER SPARK PLUGS FOUND BROKEN. NR 3 CYLINDER MOVED AND REPLACED BY OVERHAULED ONE (EXHAUST VALVE FOUND BROKEN).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) IN-FLIGHT, THE ENGINE WAS RUNNING ROUGH. NR 3 CYLINDER SPARK PLUGS FOUND BROKEN. NR 3 CYLINDER MOVED AND REPLACED BY OVERHAULED ONE (EXHAUST VALVE FOUND BROKEN).