A Airport Control
Indicates the Marketing or Operating Carrier has secured the ET flight coupon(s) prior to the scheduled departure. This control feature enables the Carrier holding airport control to update the coupon status indicator at the carrier/local airport level and not be dependent upon sending/receiving a link authorisation to process the passenger. The carrier holding airport control shall forward coupon status updates or return control to the Validating Carrier within 72 hours following the scheduled departure date/time for flight coupons with a current or future travel date, or within 72 hours following the date/time control is obtained for flight coupons with a past travel date.