The use of automated external defibrillators (AED) is essential to increase the chances of survival in case of a cardiac arrythmias such as ventricular fibrillation (VF) and non-perfusing ventricular tachycardia (VT) when used in the first 10 minutes.

AMC1 CAT.IDE.A.220 (b) (4) stipulates that the aircraft operators should carry automated external defibrillator (AED) on board all aircraft equipped with a first-aid kit and required to carry at least one cabin crew.