What is this panel light?

[JimC]

Everyone's right.

It IS in my POH in a text paragraph, even though it's not identified on the panel diagram. It is NOT labeled on my actual panel.


From my POH, Page 2-7:

TURN-AND-BANK TEST/HEATER OVERHEAT INDICATOR LIGHT

A dual-purpose amber light, labeled "T&B TEST - HEATER OVERHEAT," is mounted directly below the turn coordinator or optional turn-and-bank indicator. When depressed, the light will illuminate if electrical power is being supplied to the instrument. Illumination of the light, without manually depressing it, indicates a combustion heater overheat condition.