Paul Czysz

Paul Czysz
cause engine fuel number problem
The one thing that can cause an engine like that to have a problem is fuel contamination. It could be water. It could be any number of things.
fail plenty system time
Even if the pressurization system was failing, it doesn't fail instantaneously. You've got plenty of time to get to 12,000 feet.
aircraft basically beam close designed ground individual radar
When you get the radar beam close to the ground, you just see snow, you don't see individual targets. All of the radar was basically designed to look at aircraft in the air. They never really thought that much about ground tracking.