Which of the following is NOT a role of an Owner under aviation regulations?

The role of an Owner under aviation regulations typically encompasses several specific functions related to the ownership and management of an aircraft. One of the key roles of an Owner is to hold the legal title of the aircraft, which establishes their ownership and responsibilities concerning the aircraft. They may also act as a conditional vendee or lessee in certain financing arrangements, which allows them to benefit from the use of the aircraft while fulfilling specific conditions or obligations.

In addition, an Owner can be involved as a mortgagor, where they grant a mortgage on the aircraft while retaining possession rights until obligations under the mortgage are fulfilled.

However, the role of a physical operator of an aircraft does not fall under the Owner's responsibilities. Instead, the physical operator is typically a separate entity or individual responsible for the day-to-day operation and management of the aircraft, including piloting, maintenance, and safety checks. Therefore, an Owner’s primary responsibilities do not include physically operating the aircraft, which is why this choice accurately reflects a role that is NOT associated with an Owner according to aviation regulations.