What was found
(CAN) INSTRUCTER REPORTED ENGINE VIBRATION. SUSPECTED FOULED PLUG AND UPON INSPECTION NR 1 CYLINDER FOUND CRACKED AT UPPER SPARK PLUG HOLE. CYLINDER REMOVED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) INSTRUCTER REPORTED ENGINE VIBRATION. SUSPECTED FOULED PLUG AND UPON INSPECTION NR 1 CYLINDER FOUND CRACKED AT UPPER SPARK PLUG HOLE. CYLINDER REMOVED.