What was found
DURING CLIMBOUT, CREW NOTICED A FLICKERING MASTER CONTROL LIGHT. THE LT CENTER FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED AND RT CENTER PUMP LOW PRESSURE LIGHT FLICKERED. IMBALANCE LIGHT ON THE LT SIDE ILLUMINATED. FUEL QUANTITY INDICATED, CENTER 0, LT MAIN 7.17, RT MAIN 8.5. QRH RUN & IMBALANCE CORRECTED. NO FUEL LEAK SUSPECTED. ACFT GROUNDED. NR 1 FUEL QTY FAILS COMPARISON CHECK IAW AMM TASK 28-41-00-720-801. NR 2 TANK FUEL QUANTITY COMPARISON CHECKED GOOD. REPLACED BAD PROBES. NR 1 TANK F/Q SYS TEST NOW GOOD IAW AMM 28-41-00-730-801 AND COMPARISON CHECK GOOD IAW AMM 28-41-00-720-801.