Incident Overview
According to the flight crew, the flight was proceeding smoothly with the fasten seatbelt sign turned off, allowing passengers to move about the cabin. A passenger reported that she was exiting the aft lavatory when the airplane encountered turbulence. She described feeling as if she were being "jammed" to the floor, and her right ankle and leg "gave way" before she fell to the floor. The passenger sustained a serious injury to her right ankle. No other injuries were reported, and the aircraft landed without further incident.
Meteorological Conditions
At the time of the event, no airmen's meteorological information (AIRMET) or significant meteorological information (SIGMET) had been issued for turbulence in the area. The crew had not anticipated turbulence, as the flight had been smooth prior to the encounter.
Outcome
The aircraft continued to its destination and landed safely. The injured passenger received medical attention after landing. No additional details about the aircraft, operator, or flight itinerary were provided in the report.