Aircrafts sales involve more than just finding a plane you want to buy in an online classified advertisement. There are several things you need to find out before traveling to see the airplane. Once you arrive at the location where the aircrafts sales take place, you should conduct your own buyer's inspection. Among the questions you should ask the person selling the airplane is the flight time for both the engine and the airframe, what type of avionics are in the plane, and when the last inspection, avionics check and compression reading was done. Your inspection of the plane should include the condition of the outer plane, including the paint. The inside of the cabin should be examined as well. Take a good look at the logbooks, and make note of the flight frequency and when any repairs were done. Make sure than the plane has had the usual maintenance performed on time. A test flight should be attempted so that you can check out the engine, the gauges, and the avionics.