What was found
NR 2 ENGINE BACKFIRES IN CRUISE AND PRECAUTIONARY SHUTDOWN AT 0222Z, SUSPECT NR 4 CYLINDER. REPLACED NR 4 CYLINDER DUE TO CRACKED HEAD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 2 ENGINE BACKFIRES IN CRUISE AND PRECAUTIONARY SHUTDOWN AT 0222Z, SUSPECT NR 4 CYLINDER. REPLACED NR 4 CYLINDER DUE TO CRACKED HEAD.