Incident Overview
Shortly after departure, a flight attendant initiated beverage service. While working in the main cabin door floor area, she lost her footing and fell, sustaining an injury to her left arm.
Response
As a result of the injury, the flight attendant was unable to continue her assigned crew responsibilities. An airline pilot who was traveling as a passenger on the same flight stepped in to assist with maintaining cabin safety during the remainder of the flight.
Contributing Condition
The flight attendant reported that de-icing fluid was present on the floor, which caused the surface to become slippery. Additionally, de-ice fluid was observed on the ramp areas surrounding the aircraft prior to departure.