it would have to be one hell of a CAT encounter to drop 10,000'
My money is on what VONKLUFFEN said.
yes, even CX has made that mistake.
If you can't see out the window because it's dark or ur in IMC then you must be very careful while operating in these areas, any areas in fact. ( and if u have the windows totally covered up then u are a reckless fool. )
Good knowledge of wx radar use and principles is a must.