Originally Posted by
okpipepatrol
What is the standard method in tracking time for an aircraft engine relating to maintenance and TBO?
As SN3 noted there is a variety of ways used to measure time. The most correct method is to log actual wheels up to wheels down time and use that to track maintainance. The most favoured methods usually involve schemes that under state actual airtime in order to reduce maintainance costs and over state flight time in order to increase revenue.