Pilot Guide: Large Aircraft Ground Deicing
FAA Advisory Circular AC 120-58 — Pilot Guide: Large Aircraft Ground Deicing. Guidance on air carrier (Part 121) operations and safety programs.
About this document
AC 120-58, Pilot Guide: Large Aircraft Ground Deicing, is an FAA advisory circular providing guidance related to air carrier (Part 121) operations and safety programs. Advisory circulars are the FAA's non-regulatory method of explaining how to comply with the regulations and describing acceptable means, methods, and practices; they are not themselves binding but are widely relied upon in training and operations.
This document sets out the FAA's recommended approach to the subject of pilot guide: large aircraft ground deicing. Read it alongside the applicable sections of 14 CFR, which state the binding requirements.
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Take a free practice test →AC-120-58 is an official FAA publication in the public domain. We host a copy so you can read it in-browser; always confirm you are reading the current edition on faa.gov. The description above is an original summary and is a study aid, not a substitute for the document or the regulations.