On April 12, 2001, the FAA issued a final rule, 14 CFR part 121, subpart X - Emergency Medical Equipment and Training. This rule requires that passenger-carrying airplanes are equipped with approved first aid kit(s), an approved EMK, and an approved automated external defibrillator.
It would be instructive if all media accounts of sudden and unexpected deaths, especially heart related deaths and where the deceased is youthful, woould reveal the Covid vaccine status.