If a call for emergency assistance is made, an issue of concern may be the possibility of being sued in the event of an adverse outcome. The potential liability of a doctor who responds to an in-flight emergency is complex. While in Australia there is legislative protection for Good Samaritans, the law relating to Good Samaritan acts varies from country to country. The determination of jurisdiction of any action on an international flight may range from the country in which the aircraft is registered through to the country of citizenship of the passenger or doctor.
In any event, many major airlines have insurance policies which will indemnify doctors who come forward to assist in an emergency and, if required, doctors should seek written confirmation of indemnity from the aircraft captain. Also, the US Aviation Medical Assistance Act 1998 protects doctors who provide assistance on aircrafts registered in the US.