As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE WAS REMOVED FOR COMPRESSOR FOD. ON DISASSEMBLY AT AN APPROVED CRS, IT WAS DETERMINED THE COMPRESSOR TIE BOLTS HAD LOST THE TIE ROD STRETCH (TORQUE) ON 4 OF THE 6 TIE BOLTS. RESULTING IN COMPRESSOR BOWING (IMBALANCE) RESULTING IN COMPRESSOR RUB DOD. PROBABLE CAUSE: IMPROPER ASSEMBLY AT O/H.