As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AT THE GE AVIATION WALES ENGINE SHOP AT THE INSPECTION PROCESS A JAL GE90-94B, ESN 900455, HPC 8-10 SPOOL HAS FAILED ECI. THE SPOOL WAS FITTED NEW AT LAST SHOP VISIT. THE SPOOL HAS BEEN RETURNED TO THE OEM FOR FURTHER INVESTIGATION ON CASE #01142583.