As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE AIRCREW RECEIVED AN EICAS MESSAGE THAT THE E1 HYD PUMP FAILED. THE FLIGHT WAS DIVERTED AND THE ACFT LANDED WITHOUT INCIDENT. AN EMERGENCY WAS NOT DECLARED. MX R & R THE DEFECTIVE PUMP IAW AMM 29-10-03. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.