Doris Pratt signed up for an AirMedCare membership plan and then required helicopter transport after a car accident in which she was severely injured and her mother was killed. Pratt’s health insurer paid $8,294 of Air Evac’s $18,249 bill. Despite her AirMedCare membership promise to waive all costs not covered by insurance, Air Evac placed a lien on proceeds from Ms. Pratt’s deceased mother’s car insurance policy for the remaining balance of the bill. Read the full case here.