(1) The board may contract with any person or governmental agency for the use of the airport. Such contract shall not prevent, restrict or hamper the general use of the airport by the public.
(2) All unpledged or surplus revenue derived from use of the airport shall be first applied to the maintenance of the airport. A governmental unit may expend funds for this purpose out of its general funds or any other available funds.
(3) Any airport board is excused, under any contract or lease, from accepting performance from or rendering performance to an entity other than the entity with which it originally entered into the contract or lease, unless the airport board has specifically consented to the assignment and assumption of the contract or lease to the new party following review of such factors as the airport board deems appropriate, including the impact of the assignment upon airport safety and security.