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The specific purpose of this AIR is to provide general background information to better acquaint those who are involved with ramp de-icing of aircraft. Because the wide variance of atmospheric conditions at different airports, as well as at any individual airport, the figures given are of a general nature only and are to be taken as a very rough guide to the various factors concerned with ramp de-icing.

This SAE Aerospace Recommended Practice (ARP) establishes standard phraseology for the communication procedures during aircraft ground deicing/anti-icing operations. NOTE: The minimum requirements to accomplish an aircraft deicing/anti-icing operation are specified in AS6285. Clear concise standard phraseology between the groundcrew and flightcrew is an important part of the deicing/anti-icing process. It plays a key role in the overall safety of the deicing program. Historically, flightcrew and groundcrew have had to deal with differing communication scripts at multiple airport locations. This has led to unsafe situations, including aircraft moving before the deicing process has been fully completed.

This document establishes standard phraseology for the communication procedures during aircraft ground deicing operations. NOTE: The minimum requirements to accomplish an aircraft deicing operation are specified in the AS6285 document.

This supplement forms a part of the Aerospace Recommended Practice ARP4737, Aircraft Deicing/ Anti-icing Methods. It shall be used to identify SAE Types I, II and IV fluids holdover time guidelines.

This document establishes the minimum requirements for ground based aircraft deicing/anti-icing Methods and procedures to ensure the safe operation of aircraft during icing conditions. This document does not specify requirements for particular airplane models. NOTE: Particular airline or aircraft manufacturers' published manuals, procedures, or methods supplement the information contained in this document.

This document provides information to assist in the preparation of particular airline aircraft ground deicing/anti-icing procedures and to ensure safe operation of large transport aircraft during adverse conditions conducive to aircraft icing on the ground, in accordance with aircraft manufacturers’ recommendations.