What was found
(CAN) DURING CRUISE FLIGHT, THE UPPER PORTION OF THE ENGINE INDICATION SCREEN FAILED TQ, NG, & ITT. THE ALTERNATE SCREEN WAS SELECTED AND PERFORMED PROPERLY. THE EIS COMPUTER WAS REPLACED WITH A SERVICEABLE UNIT AND FUNCTION TREATED SERVICEABLE. IT WAS NOTED A NORMAL ENGINE START COULD NOT BE ACCOMPLISHED AS THERE WAS NO ENGINE NG INFORMATION AVAILABLE TO THE START COMPUTER TO SIGNAL IGNITION AND BOOST PUMPS.