[Tram]

Hey guys-

Getting ready to swap out my lights with HID's and today when I pulled the existing lamps out with H3 bulbs, I can find no ground wires? There is only one wire running to the bulb..

Is this normal? I have no idea what's going on here and AFAIK they were working fine when I pulled them..

Anyone?

Jeff

 

[Ron Lee]

My guess is that the bulb case somewhere made contact with the aircraft frame for grounding.

 

[Mel]

Typically lights are grounded through the housing mounted to the airframe.

 

[Tram]

Ok, thanks guys..

While I'm here, since I didn't build this thing, can you guys tell me what the fasteners are called that are riveted to a structure and have a nut built in. What are these called?

 

[D-Dubya]

Nut Plates

Nut Plates are what you're looking for. Van's, Spruce, and all the other aviation supply houses have them.

 

[Tram]

Awesome. Thank you!

 

[Tram]

Typically lights are grounded through the housing mounted to the airframe.

Any trouble shooting tips if I cannot "find" the ground for one of the lights?

I took a voltmeter tonight and turned on the lights. I was able to read ~12.6V through the landing light, however, through the taxi light, I was unable to find a ground for it.

Any thoughts?