As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTED NEW ROD BOLTS OUT OF LYCOMING PACKAGING, FOUND 22 OUT OF 28 BOLTS HAD NOT BEEN MACHINED ON THE HEAD OF THE BOLT, ONLY ON THE THREAD END. LYCOMING CONTACTED AND THE BOLTS RETURNED TO THE FACTORY. SUBMITTER RECOMMENDED INSPECTING ALL NEW PARTS PRIOR TO INSTALLATION.