London’s Air Ambulance Charity and Specialist Aviation Services extend maintenance partnership London's Air Ambulance Press Release | February 25, 2021 Estimated reading time 3 minutes, 5 seconds. London’s Air Ambulance Charity and Specialist Aviation Services announced they have signed a further three-year maintenance contract, supporting London’s Air Ambulance in delivering an advanced trauma team to the Capital’s most critically injured patients in need of life-saving care. London’s Air Ambulance in flight. David Levene Photo London’s Air Ambulance delivers rapid response and cutting-edge care to save lives in the city of London via helicopter or rapid response car, the charity is the only helicopter emergency service caring for the 10 million people that live, work and travel in London every day.