Action
Final rule.
Summary
We are amending the regulations for emergency medical equipment to allow approved power sources that do not have TSO markings to be used in automated external defibrillators carried on board aircraft. We have found that in at least one instance, power sources manufactured before the manufacturer received TSO marking approval are identical to those manufactured with a TSO marking. Allowing already- purchased power sources to be used through their effective life will save operators money and will not result in decreased safety when the agency has made a finding of equivalency.