What was found
SUPPLEMENTAL: FUEL QTY DISAGREE EICAS MSG. AT CRUISE FL290 RECEIVED FUEL CONFIG DISAGREE FOLLOWED BY ENGINE #1 LOST INDICATION OF GEN 1 AND 3, ENGINE FUEL FLOW, ENGINE TEMPS, ENGINE OIL PRESSURE, AND ALL 3 GEAR INDICATIONS. CREW REPORTED THEY RAN QRH FOR FUEL FLOW PRESSURE AND ABNORMAL LANDING GEAR EXTENSION.