As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE MECHANIC WAS SPINNING THE TURBOCHARGER COMPRESSOR-TURBINE SHAFT BEFORE HE PUT THE INTAKE ELBOW ON THE TURBOCHARGER. WHEN HE DISCOVERED THAT THE LOCK NUT ON THE INTAKE END OF THE SHAFT COULD BE SPUN OFF BY HAND. NO EVIDENCE OF THE INSPECTORS LOCK SEAL, ETC. NUT TO THREAD FIT IS LOOSE. TURBOCHARGER TSO IS -0- HOURS. ENGINE OVERHAULED AT MFG.