Hospitalized patients who can not go on the common air charter services . This is usually when they are not in stable situation obtain the service of private air ambulance businesses. Those people are in need of a heart monitor/defibrulator —- and these are the people who do not have the ability to be on your usual normal airline service. As these people are not good to be sent on commercial planes , med flight establishments must be used. Roughly all med flight businesses are crews that are privately -owned. Individuals sometimes will try to find private air ambulance specialists with the telephone book. Often people do not realize how it is truly fantastic how common people seek the help of medivac establishments.