As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER INSTALLING REBUILT MAGS, TEST RAN AND WAS KNOCKING. REMOVED NR 1 CYLINDER AND FOUND CRANKSHAFT BROKEN AT THE JOURNAL. I FEEL THE CRANK MAY BE BROKEN IN ANOTHER SPOT. MFG IS AWARE OF THIS AND A REPLACEMENT ENGINE HAS BEEN SENT. PILOT WAS FLYING AT 7000 FT AND THE ENGINE QUIT. MADE A SAFE LANDING. (CE01200502280)