As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN DUE TO ALL CIRCUIT BREAKERS FOR TANK NUMBER TWO FUEL BOOST PUMPS POPPED. FOUND NUMBER TWO FWD RT CIRCUIT BREAKER PHASE B AFT RT CIRCUIT BREAKER PHASE A AND AFT LEFT CIRCUIT BREAKERS PHASE A INTERMITTENTLY OPENING. REMOVED AND REPLACED CIRCUIT BREAKERS. DURING TROUBLESHOOTING INTERCHANGED THE NUMBER TWO RT FWD AND RT AFT BOOST PUMPS. OPERATIONALLY CHECKS GOOD.