As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFORMED BY UTILITY THAT ALL LAVS WILL NOT TAKE FLUID. FOUND BREAKER A3 POPPED ON P34 PANEL FILL LAV CONT. RESET CB. POPPED AGAIN. FOUND ARCING BETWEEN CONNECTOR AND AFT LAV OVERFILL DETECTOR, REPLACED CONNECTOR AND DETECTOR, OP CK GOOD.