Landing light ground

[Atanyspeed]

Can LED type landing lights be ground at their locations in the wings or should they be ground back to the common ground?

[emsvitil]

Avoid future headaches.......

Run a ground wire back.

[Ironflight]

Just a datapoint....four of our five airplanes have landing lights, and all are locally grounded. No problems with any of them - the oldest plane is 29 years with close to 4,000 hours, my RV-8 has 15 years and 2,000.

Anecdotal, of course....


Paul

[wcalvert]

So here we go...

[emsvitil]

You could run a common ground wire out to the wing tip for landing light, nav and strobe..........

[Paul from Flyleds]

For the record, we recommend grounding Flyleds landing lights locally.
No need for the extra voltage loss, and our lights don't generate any electrical noise.

[digidocs]

Local ground will be fine. Just do it correctly. Here is what Aero-Electric has to say on the subject:

Ground connections on a metal airplane are relatively simple but some cautions should be observed. First, clean all of the paint, primer and corrosion from around the hole which is used to ground a connection. A round wire brush with a pilot in the center is called a "bonding brush." It is designed to be used in a drill motor for this type of cleaning.

[vlittle]

Originally Posted by digidocs

Local ground will be fine. Just do it correctly. Here is what Aero-Electric has to say on the subject:

AC43.13 has the hardware stack-up to prevent corrosion.

[johnbright]

Originally Posted by vlittle

AC43.13 has the hardware stack-up to prevent corrosion.

Thanks Vern... I didn't know about AC 13.13-1B tables 11-14, -15, and -16.