What was found
DURING TAXI OUT CREW REPORTED CENTER FUEL READING 2200 LBS LOW AND RT MAIN APPROX 1900 LBS HIGH. ITEM HAS 1 PREV WRITE UP RETURNING TO GATE FOR MTC INSP. REF ITEM 7 THIS LOG REPLACED BOTH RT MAIN TANK BOOST PUMPS MOTIVE CHECK VALVE AND DISCHARGE CHECK VALVE. REMOVED AND REPLACED BOTH RT TANK BOOST PUMPS AS WELL AS MOT CHECK VALVE AND DISCHARGE CHECK VALVE. VERIFIED CONTINUOUS PUMP OPERATION AND NO FURTHER FUEL MIGRATION OR TRANSFER.