Course Review
Use the decision tree on the next page to help you review what you have learned about ground icing.
Try to imagine that you are planning a trip and must actually make a ground de/anti-icing decision.
If you aren’t sure what a step entails or how to answer one of the questions, click on the “How do I know?” button to obtain more information
This decision tree, as well as the Ground Icing Checklists, can be downloaded (PDF) later in this section or from the Resources section on the home page of this web site.
Course Review
Decision tree (interactive)
Select the appropriate answer for your aircraft or situation. New questions will appear based on your answer. Continue answering questions until you reach a "go" or "no-go" decision for your flight. Click or tap the "How do I know" buttons along the way for further information.
*If you prefer, a graphic version of the "Decision Making Flow Chart" is available for download on the following page.
Is the aircraft certified for flight into known icing?
Ice protection system fully operational?
Protected Aircraft
In-flight icing?
Flight conditions acceptable?
Freezing precipitation/active frost on ground?
Can anti-ice?
De-ice?
De-ice check OK?
De-ice?
De-ice check OK?
Anti-ice?
Anti-ice check OK?
Final go/no-go decision?
Within HOT?
Plane clean? (pre-takeoff check HOT expired)
Plane clean? (pre-takeoff check)
DON'T GO
GO (TAKEOFF)
Unprotected Aircraft
In-flight icing?
Freezing precipitation/active frost on the ground?
Active frost?
De-ice?
De-ice check OK?
Can anti-ice?
De-ice?
De-ice check OK?
Can anti-ice?
Anti-ice check OK?
Plane clean? (pre-takeoff check)
DON'T GO
GO (TAKEOFF)
Course Review
The following documents have been provided in PDF format for download and print. Feel free to laminate and take them with you.
Decision Making Flow Chart (PDF)
Download the Flow Chart from the previous page. You will also download all the questions and answers for reference. Use it as a Go/No-Go decision making tool.
Ground Icing Checklists (PDF)
Download these checklists for use at the field. These checklists provide ground-icing related guidance from pre-flight to departure. Feel free to modify them for your particular aircraft. There are two checklists, one for protected aircraft (certified for flight in icing) and unprotected aircraft.
Sample content from available linked resource documents
Course Review
Congratulations!
You've completed:
A Pilot’s Guide to Ground Icing
To learn about in-flight icing, proceed to our companion course also found on this web site:
A Pilot’s Guide to In-Flight Icing
Sample screens from "A Pilot's Guide to In-Flight Icing" course