Slot
(2) Slot means the operational authority to conduct one IFR landing or takeoff operation each day during a specific hour or 30 minute period at one of the High Density Traffic Airports, as specified in subpart K of this part. (3) Summer season means the period of time from the first Sunday in April until the last Sunday in October. (4) Winter season means the period of time from the last Sunday in October until the first Sunday in April. (5) Limited incumbent carrier means an air carrier or commuter operator that holds or operates fewer than 12 air carrier or commuter slots, in any combination, at a particular airport, not including international slots, Essential Air Service Program slots, or slots between the hours of 2200 and 0659 at Washington National Airport or LaGuardia Airport. However, for the purposes of this paragraph (a)(5), the carrier is considered to hold the number of slots at that airport that the carrier has, since December 16, 1985: (i) Returned to the FAA; (ii) Had recalled by the FAA under 93.227(a); or (iii) Transferred to another party other than by trade for one or more slots at the same airport.