As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO LAVS 3 L/R AND 4 L/R AND AFT GALLEY SINKS BACKED UP WITH WATER. UNABLE TO MANUALLY SHUTOFF WATER TO AFT LAV'S. FLOODING PERSISTED IN AFT GALLEY THROUGH DESCENT, APPROACH, AND LANDING. : CLEARED BLOCKAGE AND DEFERRED PER MEL 30-71-1A.