What was found
BORESCOPE EXAMINATION REVEALED THE NR 3 CYLINDER HEAD WAS CRACKED. AFTER THE CYLINDER WAS REMOVED, CRACKING WAS SEEN AT THE LOWER SPARK PLUG HOLE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BORESCOPE EXAMINATION REVEALED THE NR 3 CYLINDER HEAD WAS CRACKED. AFTER THE CYLINDER WAS REMOVED, CRACKING WAS SEEN AT THE LOWER SPARK PLUG HOLE.