What was found
NR 1 AND 2 FUEL TANK GUAGES ERRATIC. FLUCUATIONS UP TO 800 LBS IN NR 2 TANK AND UP TO 400 LBS IN NR 1 TANK, WHILE BURNING FROM CENTER TANK. FLUCTUATIONS CEASED ONCE LEVEL. CRUISE ALTITUDE OF FL340 AFTER APPROX 30 MIN. REMAINDER OF FLIGHT FUEL BURN PLUS TOTALIZER FUEL YEILED T/O FUEL OF 42.4 VERSUS 41.7 UPLOADED. IAW AMM 12-11-00 SUMPED BOTH MAIN TANKS. FOUND WATER, REMOVED WATER. PERFORMED OPS TEST OF THE FQIS. NO FAULTS FOUND GROUND VERIFICATION SUCCESSFUL IAW AMM 28-41-00. PERFORMED FUEL COMPARISON CHECK IAW AMM 28-41-00. COMPARED FUEL STICKS TO FLT DECK INDICATION. FOUND TO BE WITHIN LIMITS. NO HISTORY PAST 60 DAYS. ACFT OK FOR SERVICE.