AirportHeliport.designator

Item A)

Aerodrome location indicator

(runwayCondition) 
assessment date and time

Runway.overallContaminant.RunwayContamination.observationTime

Item B)

Date-time of assessment

The designator of the runway for which the assessment is provided.

Note: In a SNOWTAM message only the runway direction designator with the lowest number is inserted for each runway. The HMI should support the operator in assuring the proper selection of the runway by displaying the full designator for selection.

Runway.designator

Item C)

Lower runway designator number

Indicates the part of the runway for which the assessment is provided. This supports indicating contamination information on each third of the runway length.

Note: the data input template groups the information per runway third. In practice, data originator might prefer to group the information by SNOWTAM item and list all thirds with a "/" separator. The application HMI shall support the operator selection with visual or textual aids so that the order of the thirds are correctly provided i.e. that the first third corresponds with the first third from the RWY side with the lower designator number.

Runway.areaContaminant.RunwaySectionContamination.frictionEstimation with values 'OTHER:RWYCC_code'

Item D)

Runway Condition Code (RWYCC) on each runway third

Runway.areaContaminant.RunwaySectionContamination.proportion

Item E)

Per cent coverage contaminant for each runway third

Runway.areaContaminant.RunwaySectionContamination.depth with uom='MM'

Item F)

Depth (mm) of loose contaminant for each runway third

Indicated the contaminant observed on each runway third.

Runway.areaContaminant.RunwaySectionContamination.layer/SurfaceContaminationLayer.type

Item G)

Condition description over total runway length.

(runwayCondition) 
reduced runway width

Runway.overallContaminant.RunwayContamination.clearedWidth with uom="M"

Item H)

Width of runway to which the runway condition codes apply, if less than published width

Runway.overallContaminant.RunwayContamination.clearedLength with uom='M'

Item I)

Reduced runway length, if less than published length

Indication of the presence of drifting snow, loose sand and/or chemical treatment on the runway.

Note: The HMI should support the operator by providing only the three options available for input.

AirportHeliport.contaminant.AirportHeliportContamination.layer.SurfaceContaminationLayer.type

(for larger airports,  where drifting snow occurs on multiple runways, but not all) Runway.overallContaminant.RunwayContamination.layer.SurfaceContaminationLayer.type

Runway.overallContaminant.RunwayContamination.layer.SurfaceContaminationLayer.type

Item K) Loose sand on the runway

Item L) Chemical treatment on the runway

Item M)

Snowbanks on the runway (from centreline)

Runway.overallContaminant.RunwayContamination.criticalRidge.Ridge.distance with uom="M" and

Ridge.annotation with propertyName='distance', purpose='DESCRIPTION' and note='distance measured from runway centerline'

Item O)

Snowbanks adjacent to the runway

Item N)

Snowbanks on a taxiway

Taxiway.contaminant/TaxiwayContamination.annotation.Note with purpose='REMARK' , propertyName='criticalRidge' and note='Snowbanks present on the taxiway'

Taxiway.contaminant.TaxiwayContamination.frictionEstimation 

Item P)

Taxiway conditions

AirportHeliport.contaminant.AirportHeliportContamination.annotation.Note with purpose='REMARK' and note='All TWYs poor'

Item R)

Apron conditions

Apron.contaminant.ApronContamination.frictionEstimation

AirportHeliport.contaminant.AirportHeliportContamination.annotation.Note with purpose='REMARK' and note='All aprons poor'

(runwayCondition) 
(runwaySectionCondition) measured friction coefficient

Runway.areaContaminant.RunwaySectionContamination.frictionCoefficient

Item S)

Measured friction coefficient

Item T)

Plain language remarks