[stackj]

The original CBs in the Skymasters seem to be reaching end of life. I don't know if it is internal corrosion or just what's going on, but I had several become unreliable over our 15 years of Skymaster ownership.

On our last avionics upgrade, I chose to wholesale swap out all of them. I also chose breakers that I could manually turn off. We also manufactured a copper bus to replace the old aluminum one.

This cost about $800, but after having the mains (both of them) pop on a couple of IFR flights, it was well worth the expense. The major problem with the mains is when one popped, the other could not handle the load and it would slowly heat up and it would pop. By the time I realized what was happening, I could only get one to reset - the second one was still to hot to reset. Then I began playing the game Reset 1, 2 minutes - pop, reset 2, 2 minutes - pop, reset 1, 2 minutes - pop...

I LIKE the new breaker panel!