Incident Overview
A commercial flight was cruising at 4,000 feet when air traffic control issued a traffic advisory to the flight crew. The crew reported that they were unable to visually locate the traffic because the aircraft was operating in instrument meteorological conditions (IMC). Approximately three minutes later, the Traffic Collision Avoidance System (TCAS) generated an alert directing the crew to climb.
Sequence of Events
In response to the TCAS alert, the flight crew initiated a climb from 4,000 feet. The aircraft climbed and eventually leveled off at an altitude of 5,300 feet. During the climb, both flight attendants, who were standing and completing their pre-landing duties, lost their footing and fell. One flight attendant sustained a broken leg as a result of the fall. The other flight attendant was not injured.
Post-Incident Actions
The pilot communicated with air traffic control and requested that an ambulance be available to meet the aircraft upon landing. The flight proceeded to its destination and landed without further incident. The injured flight attendant was subsequently transported to a local hospital for medical treatment.
Investigation Status
The incident is under investigation by relevant aviation authorities. No probable cause has been stated at this time.