As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED DURING CRUISE FLT, NR 1 ENGINE FUEL IMPELLER BYPASSED ILLUMINATED ON EICAS. NR 1 ENGINE WOULD NOT PRODUCE FULL POWER AND ENGINE WAS SPUTTERING LIKE IT WAS STARVED OF FUEL. DECLARED AN EMERGENCY AND DIVERTED. LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. REMOVED AND REPLACED NR 1 ENGINE IAW 71-00-00. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.