As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSP-DFW - DURING CLIMB, A LOUD SHRILL NOISE BEGAN EMANATING FROM THE LEFT AFT GALLEY DOOR, NO PRESSURIZATION DISCREPANCIES WERE NOTED. DUMPED 3,000 LBS OF FUEL AND DIVERTED TO MCI WITHOUT FURTHER INCIDENT. PRESSURIZED AIRCRAFT PER MM 21-30-00, PGS 502 TO 503. NO TROUBLE WAS FOUND.