What was found
HAD 200 LB FUEL IMBALANCE ON #1 TANK. REBALANCED FUEL AND WITHIN 18 MIN; HAD A 500 LBS IMBALANCE. THEN RAPIDLY DROPPED TO 1800LBS. UPON FINAL APPROACH; #1 FUEL QTY RESTORED TO NORMAL. NO CARRYOVER WITHOUT TROUBLESHOOTING!!!!!!! HANGAR REQUEST 3525<[01] OK TO CONTINUE PER M.E.L 28-6-01; SP1; SP3.;[02] PERFORMED TANK AND COMPENSATOR FQIS HEALTH CHECK OF #1 MAIN TANK REF AMM 28-41-21 FOUND MEASURED CAPACITANCE AT 5OOOHZ AND 500HZ FOR F2(91.99/87.8)(LIMIT 40.0-86.9) AND F7(30.42/30.78)(LIMIT 34.2-74.7) TO BE OUT OF RANGE ALSO FOUND INSULATION RESISTANCE LO-Z TO HIGH-Z MIN 1000 MEGAOHMS F5(43.43); F6(17.98); F7(103); F8(76.3); AND F9(152) TO BE OUT OF RANGE. FUEL TANK ENTRY REQUIRED FOR MORE TROUBLESHOOTING.