Aircraft serial number
Which part of the aircraft does the serial number actually apply to?
As you keep changing components over an aircraft's life, including possibly wings and parts of the airframe, at what point does the manufacturer's serial number become no longer valid?
Or even, if I cut my aircraft in half, and rebuilt each half with spares, where does the serial number go? Does it still apply to both halves? It only to one half, what serial does the other get??????