As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AFTER TAKEOFF N1 HAD A 7 PERCENT SPLIT AND ENGINE SHUTDOWN ON ITSELF. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD. REMOVED AND REPLACED ENGINE FUEL PUMP PACKAGE (AALA202509307020). ALSO, NUMBER 1 ENGINE REQUIRES NEW FUEL PUMP, INSTALLED FUEL PUMP (AALA202510021275). PER AMM 73-11-11 AND JC 08L40073001. OPERATIONAL AND LEAK CHECK GOOD.