As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT ATTEMPTED TO START ENGINE WITH NO ROTATION NOTED. AFTER TROUBLESHOOTING START SYSTEM COMPRESSOR WAS FOUND TO BE SIEZED. COMPRESSOR WAS REMOVED AND STILL NOT ABLE TO ROTATE. NO METAL CONTAMINATION FOUND TO SUGGEST BEARING FAILURE. AXIAL COMPRESSOR DOES NOT APPEAR TO HAVE SHIFTED.