As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON TAKEOFF CLIMBOUT RECEIVED CAUTION FUEL IMBALANCE THE RIGHT MAIN TANK SHOWED, 6000 LBS LOW FOR 20-30 SECONDS THEN RETURNED TO NORMAL. REMOVED AND REPLACED RIGHT MAIN PROBE TANK UNIT NUMBER 12. PER AMM 28-41-02.