Could you please clarify what you mean by “return policy of aviation”? Here are a few possible interpretations, and you can tell me which one you mean:

  1. Return Policy for Airline Tickets
    – Are you asking about how to return or get a refund for a flight ticket?
  2. Return Policy for Aviation Parts or Equipment
    – Are you referring to returning aviation-related products (like aircraft parts, avionics, etc.)?
  3. Return to Base Policy in Aviation Operations
    – Are you asking about operational procedures for an aircraft returning to its departure point?
  4. Return Policy in Aviation Training or Education
    – For example, refund policies for aviation courses or flight schools?

Let me know which one you’re interested in, and I’ll give you a detailed and accurate response.