Alt Circuit Breaker Popped Twice Yesterday

[Neal]

I assume you have a GMA 245R over the rear seat? There is a USB port on the front of it. Do you have anything plugged into that?

I had the FLD breaker pop once and it's the only time I ever used that USB port to try and power a GoPro.

 

[Cactus Charlie]

Here is the FX-3 CB group. You can see the reason for the confusion caused by describing the field CB as the alternator CB.

 

[Neal]

Hard to believe there is no ALT breaker but then again you have a larger ALT than us. I’m curious, what breakers are on the front of your seat base?

 

[Cactus Charlie]

The schematic shows an alternator fuse not a CB.

 

[lrobichaux]

Schematic attached. Pic of panel attached.

 

[lrobichaux]

There is a USB port on the front of it. Do you have anything plugged into that?

Remote audio panel is located in the aft avionics bay (which the FX-3 does not have). Nothing plugged into the USB power outlet.

 

[Cactus Charlie]

As suggested in my email - start your visual inspection at the shunt.

If no problem found there you will have to inspect all the wiring between the shunt and the battery as well as the start and main solenoid connections.

 

[lrobichaux]

Actually, there is one CB not on the main instrument panel. The left ignition CB. See attached.

 

[lrobichaux]

If no problem found there you will have to inspect all the wiring between the shunt and the battery as well as the start and main solenoid connections.

I’ll update everyone what the avionics shop finds . This is outside of my attention span and most likely skill level too.

 

[Neal]

I’ll update everyone what the avionics shop finds . This is outside of my attention span and most likely skill level too.

Good call. I'm out of ideas and my skill level of suggestions. These are too complicated and I'm no A&P by a long shot. The planes have quite a bit of variance at least from the breaker setup. I hope someone finds it and you can regain peace of mind.