Within how many days must a registration transfer be completed after the sale of an aircraft?

The correct timeframe for completing a registration transfer after the sale of an aircraft is 15 days. This requirement is established to ensure proper documentation and maintain the accuracy of the aircraft registration records. Timely registration transfers are essential to clarify ownership and liability, avoid potential legal disputes, and prevent issues related to airworthiness and operational authority. Observing this 15-day period helps streamline the oversight and regulation of aircraft, ultimately contributing to aviation safety and accountability.