What was found
CAPTAIN REPORTED THAT DURING CRUISE, THE RIGHT ENGINE VIBRATION EICAS MESSAGE VIBRATION INDICATION HIGH RIGHT ENGINE WITH FAILURE CODE OF FDE 710 342 52. MAINTENANCE PERSONNEL PERFORMED FIM DMC-B787-A-G77-30-F1-50A-421A-A PROCEDURE, DETECTING THE MAINTENANCE MESSAGE AND FAILURE CODE RIGHT ENGINE ASSEMBLY HIGH VIBRATION LIMIT IS EXCEEDED AND REACHED 4.1 UNITS. THE FIM PROCEDURE WAS PERFORMED IAW FIM DMC-B787-A-G77-30-F1-50A-421A-A AND AMM DMC-B787-A-G71-00-00-18A-340A-A WITH VIBRATION OF 0.3 UNITS TO 90% N1, TESTED CORRECT.