A flight from Nantes arrived at the terminal and was parked off. A mobile staircase was positioned at the front left door, and passengers disembarked. A passenger lost her balance and fell onto the staircase platform, resulting in an injury. Firefighters assessed the passenger and suspected a broken ankle, requesting assistance from the terminal’s first aid station. The firefighters immobilized the passenger’s leg with a splint and contacted EMS for transport to a hospital, anticipating a two-to-three-hour delay. The passenger was transferred to the airport terminal, with her companion agreeing to take her to the hospital. She subsequently received diagnoses of fractures of both malleoli and tibia at the hospital.A flight from Nantes arrived at the terminal and was parked off. A mobile staircase was positioned at the front left door, and passengers disembarked. A passenger lost her balance and fell onto the staircase platform, resulting in an injury. Firefighters assessed the passenger and suspected a broken ankle, requesting assistance from the terminal’s first aid station. The firefighters immobilized the passenger’s leg with a splint and contacted EMS for transport to a hospital, anticipating a two-to-three-hour delay. The passenger was transferred to the airport terminal, with her companion agreeing to take her to the hospital. She subsequently received diagnoses of fractures of both malleoli and tibia at the hospital.