Display Selector
Probe Heat Panel
Illuminated - The right Elevator Pitot Tube is not heated.

The right elevator pitot tube located on the right side of the
vertical stabilizer provides ram air pressure for the elevator feel
computer.

When either hydraulic system
or the elevator feel pitot system
fails, excessive differential hydraulic pressure is sensed in the
elevator feel computer and the FEEL DIFF PRESS light
illuminates.