Aircraft Prognostics Health System

According to one example embodiment, a method of assessing use of an aircraft component installed on an aircraft includes assessing whether received one or more measurements are sufficient to support calculation of a usage-based change in remaining useful life and, if the one or more measurements are sufficient to support calculation of the usage-based change in remaining useful life, calculating the usage-based change in remaining useful life based on the received one or more measurements and changing the second remaining useful life of the aircraft component by the difference between the default change in remaining useful life and the usage-based change in remaining useful life.