What was found
DURING GROUND TEST ENGINE RUN, ENG FLAMED OUT AFTER LESS THAN A MINUTE. FUEL GAUGES INDICATED APPROX 70 POUNDS OF FUEL. AFTER TANKS TOPPED OFF AND FUEL LINES PURGED, ATTEMPTED RESTART WITHOUT SUCCESS. FURTHER T/S LOCATED INOP IGNITER FUNCTION. THIS WAS T/S TO INTERMITTENT IGNITER RELAY SOCKET. VIBRATION ON WIRING HARNESS WOULD CAUSE RELAYS TO DE-ENERGIZE INTERMITTENTLY. SEVERAL RELAYS AFFECTED. CURRENT MD600 MM ARE TOO INADEQUATE TO IDENTIFY THE FUNCTION OF RELAYS. SUBMITTER SUSPECTS THAT 3 RELAYS ARE: FADEC START RELAY. FADEC IGNITION RELAY AND BATTERY HITEMP RELAY. SUSPECTED FADEC ECU MAY HAVE SHUT ENG DOWN DUE TO LOSS OF SIGNAL LINES FROM INTERMITTENT RELAYS. TSN: 12.6 HRS.