Clark's question;

I've seen many LIVP panels with a Pressurization Test switch usually right next to the Dump switch.  What test does the Test switch perform?  Is it wired to the Dukes pressurization controller?  Thanks, Clark Still (NY, very close to done - can put the panel in once I get this Test switch question answered).

Hi Clark,

On my L4P I have the push to test switch and as far as I know it only tests the Cabin Pressure Warning Light system. When I push it on preflight it takes a second and then my Warning light comes on. I installed this light and one that shows Boost Pump at 10K ft. going up and coming down if I forget to put the Low Boost on, going up, or off on desent. It is a big noisy problem if you forget to turn it on going up. I know.

L4P 355 hrs.