The cost of an aircraft pre-buy inspection for an airplane usually depends on the type and size of the aircraft. Generally, the buyer of the aircraft is responsible for paying for the inspection, although in some cases the seller may agree to cover some or all of the cost. It is important to note that an independent inspector should be used to conduct the inspection, as this will ensure impartiality and accuracy in evaluating the condition of the aircraft. Additionally, it is recommended that buyers obtain quotes from multiple inspectors before selecting one to perform their aircraft pre-buy inspection.