How leaky lavatories caused control difficulties for Delta 767

The US National Transportation Safety Board (NTSB) has concluded an investigation into an incident involving a Delta Air Lines Boeing 767-300ER that suffered flight control problems following a water leak on board. The aircraft, N181DN (c/n 25986) was conducting Flight 211 between Prague/Václav Havel and New York/JFK on July 7, 2022, when the flight crew experienced roll control difficulties after being informed of a water leak emanating from the two mid cabin lavatories. Flight 211 that day was a line