As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 1 ENGINE NOTICEABLY SLOW TO SPOOL UP WITH THROTTLES IN SAME POSITION. FMC COMMANDED TAKEOFF N1 SETTINGS APPROXIMATELY 1% DIFFERENT DURING TAKEOFF (#1=87.1; #2=86.3).<[01] REMOVED AND REPLACED #1 ENG HMU AND FUEL PUMP PER AMM 73-11-11;[02] COMPLIED WITH RII AS PER MT 773-11-00