What was found
AIRCRAFT WAS GROUNDED: AFTER RETURN TO GATE FOR PAX DISTURBANCE, FUEL WAS STREAMING OUT OF RIGHT WING TANK SURGE VALVE, RIGHT CENTER BOOST PUMP WAS ON AND AFTER TURNING OFF RIGHT CENTER PUMP LEAK STOPPED. REPLACED NR 2 FUELING SHUTOFF VALVE, PER AMM 28-21-51 (AALA202009109005). REPLACED NR 2 FUEL FLOAT VENT VALVE, PER AMM 28-13-11 (AALA202009169012). REPLACED RIGHT FLOAT SWITCH, PER AMM 28-21-71 (AALA202009169013). ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF ALL REPLACED ITEMS, PER AMM 28-26-00-650-802 AND AMM 28-21-00-700-801.