What was found
BORESCOPE INSPECTION REVEALED THE NR 1 CYLINDER WAS CRACKED. AFTER REMOVAL, THE INSIDE OF THE HEAD WAS FOUND TO BE CRACKED TO EITHER SIDE OF THE LOWER SPARK PLUG HOLE. HEAD CASTING NR C-02282.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BORESCOPE INSPECTION REVEALED THE NR 1 CYLINDER WAS CRACKED. AFTER REMOVAL, THE INSIDE OF THE HEAD WAS FOUND TO BE CRACKED TO EITHER SIDE OF THE LOWER SPARK PLUG HOLE. HEAD CASTING NR C-02282.