As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE WAS ASSEMBLED AND TESTED. AFTER TEST METAL SPRAY WAS NOTED IN THE TAIL PIPE. ENGINE WAS DISASSEMBLED AND DELAMINATION OF THE METAL SPRAY ON THE COMPRESSOR HSG WAS NOTED. THERE IS NO PROBABLE CAUSE OR RECOMMENDATIONS AT THIS TIME.