As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE WAS SENT TO ENGINE SHOP FOR PROP STRIKE INSPECTION. UPON REINSTALLATION OF NR 1 CYLINDER, IT WAS DISCOVERED THAT THE BARREL AND HEAD WERE MISALIGNED BY APPROX. 5 DEGREES (UNIT WAS REPLACED). ENGINE SHOP ADVISES THIS IS A DEFECT OCCURING DURING ORIGINAL ASSEMBLY AT THE FACTORY AND FURTHER ADVISE THAT THIS IS THE SECOND ONE THEY HAVE FOUND.