In runway surface condition reporting, what is the code for ice on the runway?

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Multiple Choice

In runway surface condition reporting, what is the code for ice on the runway?

Runway surface condition reporting uses concise two-letter codes to tell you what contaminant is on the pavement and where it is. For ice on the runway, the standard code is IR: I signals ice, and R confirms it’s on the Runway surface. This quick shorthand lets pilots gauge braking action and safety implications at a glance, and it’s used in ATIS/NOTAMs and by maintenance for de-icing decisions. The other options don’t match this standard: something like ash would indicate volcanic ash, and the order RI isn’t the recognized Ice-on-Runway code in this reporting system, so it wouldn’t be used to convey that condition.

Runway surface condition reporting uses concise two-letter codes to tell you what contaminant is on the pavement and where it is. For ice on the runway, the standard code is IR: I signals ice, and R confirms it’s on the Runway surface. This quick shorthand lets pilots gauge braking action and safety implications at a glance, and it’s used in ATIS/NOTAMs and by maintenance for de-icing decisions.

The other options don’t match this standard: something like ash would indicate volcanic ash, and the order RI isn’t the recognized Ice-on-Runway code in this reporting system, so it wouldn’t be used to convey that condition.

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