As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURN TO FIELD WITH A FUEL IMBALANCE PROBLEM. OVER PRESSURE BURST DISC BETWEEN THE LEFT INNER WING FUEL TANK AND THE CENTER FUEL TANK RUPTURED. FUEL TRANSFERRED FROM THE LEFT WING TO THE CENTER CAUSING AN IMBALANCE BETWEEN THE INNER WING TANKS.