Incident Details
During climb after takeoff, light turbulence prevailed and the seatbelt sign remained illuminated. Approximately 230 miles northwest of the departure airport, at an altitude of 34,000 feet, the turbulence subsided. However, more turbulence was forecasted for about 150 miles ahead of the airplane. The captain announced to passengers that the seatbelt sign would be turned off for 10 minutes to allow them an opportunity to move about the cabin, but would be turned on again due to the upcoming turbulence.
About 3 minutes after turning the seatbelt sign back on, the airplane encountered moderate turbulence. At that time, two passengers fell as they were attempting to sit down. Additionally, a flight attendant fell to the floor while attempting to sit, and fractured her pelvis.
Injuries
The flight attendant sustained a fractured pelvis. The two passengers who fell did not have their injuries specified in the report.
Safety Measures
The seatbelt sign was turned off briefly to allow cabin movement, but was reactivated in anticipation of forecast turbulence. The incident occurred shortly after the sign was turned back on, highlighting the need for passengers and crew to remain seated when the sign is illuminated or when turbulence is expected.