Club Homepage Forums Classified Ads Buy & Sell - Airplanes Only New Member - Need advice on 150 Purchase

The TBO is just the average number. When TBO is 1800, it doesn't mean the engine will fall apart on the 1801st hour. Some owners will keep flying until the compressions drop below acceptable numbers, or when other engine internal parts develop problem. But I've also read that by the time the internal parts are showing problems, those parts are often beyond re-workable and you have to buy new ones.