Section 24237 Of Chapter 1. General Provisions And Definitions From California Public Utilities Code >> Division 9. >> Part 5. >> Chapter 1.

. "Owner" means any of the following persons who may be legally responsible for the operation of an aircraft:
  (a) A person who holds the legal title to an aircraft.
  (b) A lessee of an aircraft.
  (c) A conditional vendee, a trustee under a trust receipt and a mortgager or other person holding an aircraft subject to a security interest.