Originally Posted by lomapaseo
And how is the flight crew able to see and interpret this for the specific aircraft?
Originally Posted by me
They read their flight manual.
Originally Posted by lomapaseo
a rather dismissive post, but I intend to pursue this issue anyhow.
Ok. The baby Dash 8 flight manual I have gives clear guidance on what indications you'll have for severe icing (ice build up on pilot's side window and build up of ice on prop spinner aft of the spinner nose toward the blades.) I assume that all aircraft have similar guidance. The answer to how a flight crew is supposed to see and interpret whether severe icing conditions exist is that they become familiar with the aircraft flight manual and when what they see matches what is described, they are to consider themselves to be in severe icing. It does not require a knowledge of the AIP description of severe icing or the ability to interpret it.