PROBE / WINDOW HEAT PANEL

Question 1

On the ground, with the PROBE/WINDOW HEAT push button in AUTO, when are the probe and mast heaters
activated?

Answer 1

a. LOW with at least one engine running (except the TAT probe – not heated on ground)
b. NORMAL is automatically selected after takeoff

Question 2

What does the PROBE/WINDOW HEAT push button do?

Answer 2

Manually activates the probe, drain mast, and window heaters