What happened
The flight crew was managing a descent from an altitude of 18,000 feet down to 10,000 feet. During this phase of the flight, the cabin seatbelt sign was illuminated, and a public address announcement was made instructing all occupants to fasten their seatbelts.
Despite these precautions, the aircraft encountered a short period of turbulence. At that moment, one passenger was standing in the aisle near the rear lavatory. The sudden movement caused the individual to be thrown forward into the rear galley area. As a result of this impact, the passenger suffered a broken leg.