THE Government will leave it to Governor Chris Patten to decide whether the future Airport Corporation will be chaired and managed by the same person. It is understood the airport bill, due to be published on Monday, does not specify whether the chairman and the chief executive of the corporation should be different people. Such an arrangement would differ from the Mass Transit Railway Corporation (MTRC) Ordinance, which stipulates that the chairman should be the chief executive of the corporation - but it can also appoint a managing director. However, the Memorandum of Understanding on the airport projects states that the airport bill should be modelled on the MTRC Ordinance. The board of the Provisional Airport Authority is chaired by Financial Secretary Sir Hamish Macleod. The chief executive is Hank Townsend. Legislators generally support the idea of having different people in the top two jobs. United Democrat (UDHK) legislator Albert Chan Wai-yip and Meeting Point legislator Leong Che-hung said it was better to appoint different people to maintain checks and balances. The representative of the engineering profession in the Legislative Council, Samuel Wong Ping-wai, suggested that candidates for the chairman and the chief executive could be recommended by professional bodies, and the Governor could make the appointmentafter consulting Legco. Mr Wong suggested that their tenure should not exceed three years. But a member of the Airport Consultative Committee, Victor Sit Fung-shuen, said it would be more effective to have the same person in the positions. Meanwhile, MTRC officials yesterday told UDHK legislators that the airport railway could not be completed by mid-1997 as scheduled because of delays in major contracts.