What was found
TECH SERVICES REQUEST DUE TO RECENT FUEL IMBALANCE ISSUE. ACCOMPLISH FUEL QUANTITY INDICATING SYSTEM TEST, PER B737-800 AMM 28-41-00-730-801. GROUNDED-YES. ACCOMPLISHED STEP NR 2 OF THIS TSR. RT TANK CAPACITANCE VALUE IS 398.3PF, REF B737-800 AMM 28-41-00-730-801, WITHIN LIMITS. ACCOMPLISHED STEP NR 1 OF THIS TSR. LT TANK CAPACITANCE VALUE IS 425.6PF, REF AMM 28-41-00-730-801, OUT OF LIMITS. REPLACED PROBES F7, F8, F9 PER AMM 28-41-21/401. VALUES ARE NOW WITHIN LIMITS, PER AMM 28-41-21/501. OPERATIONS/LEAK CHECK REQUIRED. THREE PANELS LEAK CHECK GOOD. LT FQIS OPERATIONS CHECKS GOOD, PER AMM 28-41-21/401.