Below G/S light, 737
 

Why does the "below G/S" light not illuminate when pressed on the 737. During the light test it comes on normally? I cannot find it in the manuals.

regards

I am of the understanding that it does illuminate during TEST.

Look in your FCOM under Ground Proximity Warning System, around page 15.10.6 (in my V2), and check out the explanation under Ground Proximity System Test!

Cheers... :)
EW73

Like I said it does illuminate during the light test. But if you press any light in the cockpit with your finger it illuminates except the "Below G/S" light... the question is why? It is not mentioned in the Boeing manuals.

Because it is, unless I've forgotten one, the only light in the cockpit (except the master caution annunciators) that has a switching function, as ITTBF said...