Spare Aircraft; Heavy Check Aircraft; Hubs and XXX. Contractor may use spare aircraft to operate Scheduled Flights as well as to operate flights that are not Scheduled Flights, including flights for other air carriers as directed by Continental. Notwithstanding anything in this Section 2.01 or elsewhere in this Agreement to the contrary, one of the Covered Aircraft shall be allocated as the maintenance program heavy check aircraft. This aircraft will support normally scheduled calendar and cycle driven maintenance inspections which cannot otherwise be accomplished on scheduled overnights. The heavy check schedule requirements will be communicated to Continental quarterly and six months in advance and in the event sufficient time exists where no heavy check maintenance is required, Continental may utilize the heavy check aircraft in scheduled service. In addition, the parties shall adhere to the following requirements in regard to Rest Over-night (XXX) maintenance and operational spares:
(i) The first two (2) Covered Aircraft in service will operate from Contractor's existing DEN crew and maintenance base with XXX maintenance accomplished in MCI. At Contractor's discretion, and with at least [*] written notice to Continental, these two (2) Covered Aircraft will be reallocated to other hub flying for Continental pursuant to this Agreement. If no aircraft are to be based in DEN, then these aircraft shall not operate in DEN beyond [*];
(ii) In order to achieve the desired operating performance standards for the Covered Aircraft as set forth in Section 3.07, Contractor requires that no less than [*] of the Covered Aircraft, rounded up to the nearest whole Covered Aircraft, be allowed entry into a designated Q400 overnight maintenance base for at least [*] per entry for purposes of performing required program maintenance;
(iii) [*]; and
(iv) All Covered Aircraft will operate consistently with one of the five schedule scenarios listed in the table below, as determined by Continental from time to time as provided in this paragraph, in regard to XXX maintenance stations and numbers of operational spares; provided, that Continental shall give Contractor at least [*] days prior written notice of changing the then-current selected schedule scenario; provided further that where any such change is between schedule scenario 1 and schedule scenario 2 below or if such change is between schedule scenario 4 and schedule scenario 5, such prior notice shall be [*] days; provided further that where the election of a new schedule...
