Flying through known or forecast icing

On Wed, 14 Dec 2005 16:33:31 GMT, George Patterson
wrote:

John Doe wrote:

1) If the cloud layer is forecast to potentially have icing, can you legally
and would you climb through the layer to get up high for your trip? how
thick a layer, type of forecast, time spent in the layer, etc. What would
you be willing to risk transition through possible icing?

No. Legally, forecast ice is "known icing."

A bit of a distortion.
The phrase in the regulations is "known icing conditions". A forecast that
mentions icing satisfies this as the conditions (leading to potential) icing
are indeed known -- if you have read the forecast -- and you are required by
regulations to obtain all relevant information for the flight which includes
a weather forecast.

Many pilots try to parse the requirement as "known-icing conditions" whereas
the FAA has defined it to mean "known icing-conditions" -- a subtle but
inportant difference when it comes to defending oneself against a
certificate action. A forecast of icing constitutes "known
icing-conditions."

4) Let's say yoru trip starts off VFR but by the time you get to your
destination, a cloud layer has formed that has reported icing in it. Can or
or would you be willing to transit this layer to land at this destionation
or would you turn around or divert to land someplace to stay out of the
clouds?

If I want to stay VFR, I won't be transiting any clouds. Being unwilling to risk
a violation if I file IFR and then fly through reported icing, I would divert.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.

--
Jay.
(remove dashes for legal email address)