What was found
FUELER ADVISED #2 TANK AUTO SHUTOFF AT 8200 LBS. GROUNDED - YES. ACCOMPLISHED A TANK AND COMPENSATOR UNITS TEST PER B737-800 B737-800 AMM 28-41-21/501. FOUND THE COMPENSATOR, AND TANK UNITS 2, 3, 6, AND 8 TO BE OUT OF CAPACITANCE LIMITS. MIG-2C WITH S/N'S 40-0045119 AND 40-0045120 INITIATED. REMOVED AND REPLACED PROBES F3R, F6R, F8R REF 28-41-21. REQUIRES OPS CHECK. REPLACED PROBES F2R AND F15R REF AMM 28-41-21. ALL PROBES AND COMPENSATOR WITHIN LIMITS FOR #2 TANK REF AMM 28-41-21/501. REVERSED MEL MAINTENANCE PROCEDURES AND RETURNED SHORTING PLUG AND WASHER/NUT BUILD-UP TO FLY-A-WAY KIT. #2 FQIS SYSTEM TEST CHECKS GOOD REF AMM TASK 28-41-00-730-801.