What was found
RIGHT MAIN TANK FUEL QUANTITY INDICATOR BEGAN FLUCTUATING ON CLIMBOUT AND CONTINUED FLUCTUATING AFTER LEVEL OFF. INDICATOR SHOWED FUEL OF 8.38 TO 7.95. LEFT MAIN TANK INDICATOR SHOWES 8.63. WE WERE BURNING OUT OF CTR TANK AT THE TIME. ACFT GROUNDED. PERFORMED FIM 28-41, TASK 801, FQIS BITE CURRENT STATUS SHOW NO FAULTS GROUND TEST SHOWS PASS. SUMPED LT AND RT FUEL TANKS IAW AMM 12-11-00 FOUND MINIMAL DEBRIS. PERFORMED MAIN TANK SPECIAL WATER MANAGEMENT PROCESS IAW T/C NG-28WC-00001. PERFORMED FUEL QUANTITY COMPARISON CHECK IAW AMM 28-41-00-720-801. OPS CHECK WITHIN LIMITS.