flight disruption(в частности: "flight disruption" is the collective term for the following events that prevent passengers from completing their itineraries on time: Flight and tarmac delays; Flight cancellations; and Denials of boarding. sankozh)
regular boarding(We are now inviting those passengers with small children, and any passengers requiring special assistance, to begin boarding at this time. Regular boarding will begin in approximately ten minutes time (контекстуальный перевод). VLZ_58)