What was found
ATB - ONE HOUR AFTER DEPARTURE, THE NR 1 FUEL QTY INDICATING SYSTEM FAILED. THE NR 2 FUEL FLOW INDICATOR WAS PREVIOUSLY DEFERRED. ACCORDING TO SYSTEM OPERATIONS, THE CREW COULDN'T COMPLY W/THE AOM REGARDING FUEL BURN AND FUEL INDICATION. CREW DUMPED 85.0 LBS OF FUEL AND RETURNED TO CGN FOR REPAIR. TROUBLESHOOTING PERFORMED PER FIM 28-41-00. FOUND NR 1 TANK IB MJP FAULTING INTERMITTENTLY. SAME REPLACED PER MM 28-41-40. L/C & F/C OK. FQDU REPLACED PER TECH REQUEST IAW MM 28-41-91. F/C OK.