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ER-01

The temporary closure of an aircraft stand shall be encoded as:

• a new Event with a BASELINE TimeSlice (scenario=STAND.CLS, version=2.0), for which a PERMDELTA TimeSlice may also be provided; and
• a TimeSlice of type TEMPDELTA for each affected AircraftStand feature, for which the "event:theEvent" property points to the Event instance created above;

ER-02

First, all the BASELINE availability.ApronAreaAvailability (with operationalStatus=NORMAL), if present, shall be copied in the TEMPDELTA. 

Then, an additional availability.ApronAreaAvailability element having operationalStatus=CLOSED shall be coded in the AircraftStand TEMPDELTA.

Note: No mistyping - ApronAreaAvailability is the actual name of the object containing information about the operational status of an AircraftStand. 

ER-03

If the aircraft stand closure is limited to a discrete schedule within the overall time period between the "start time" and the "end time", then this shall be encoded using as many as necessary timeInterval/Timesheet properties for the ApronAreaAvailability of the Air TEMPDELTA Timeslice. See the rules for Event Schedules.

The system shall automatically identify the FIR where the AerodromeHeliport is located. This shall be coded as corresponding concernedAirspace property in the Event