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TYPES OF MONITORING

GENERAL

Slot monitoring is performed by ACNL in cooperation with the airport and air traffic control authorities. Several types of monitoring are applicable for which procedures and regulations may differ per airport.

Slot monitoring is performed by ACNL in cooperation with the airport and air traffic control authorities. Several types of monitoring are applicable for which procedures and regulations may differ per airport.

ACNL regularly compares the most recent slot information with information from the airports/air traffic controls data and other sources. Regular monitoring procedures are in place for the following categories of inconsistencies in the use of slots:

  • Unplanned night movements: Flights operated during the night regime at Amsterdam Airport Schiphol without a night slot.
  • No-recs: Flights operated without cleared airport slots.
  • No-ops: Cleared airport slots that have not been operated.
  • COORD/STT: Coordinated slot compared with the Scheduled Time Table
  • COORD/ACTUAL: Coordinated slot compared with the Actual time and/or way of operation.

Table of monitoring performed by ACNL:

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