Anti collision lights dead!

Hi everyone, 

just finishing up my annual on my ELSA AMD built 601XLB

when I tested my lights I found my Aeroflash Strobes not operating 

spent a couple of hours troubleshooting to no avail. I found Juice at the switch, tried to follow the wiring to

the strobes. Cannot find any issue. Wires are really buried and mostly inaccessible.

i figured I must of pulled a connection loose during the annual. This unit uses two wing mounted power supplies so I would think if it’s a bulb or power supply one would still work.

i had to walk away and look at it again tomorrow .

Any body out there have a similar problem? Or any suggestions?

thanks Dave

N601XP

Views: 54

▶ Reply to This

Replies to This Discussion

Permalink Reply by Gary Welch on Monday

To possibly state the obvious - did you check the grounds at both lights? Many times these are grounded at the wing tip rather than running ground wires back to the firewall. Though of this were the case, you'd think one would work. 

Did builder install an inline fuse downstream of the switch? Its not a good idea, but it happens.

Permalink Reply by David Krakowsky on Wednesday

Thanks Gary

plane is an AMD factory built. I checked the grounds at the wingtip and set up a temporary ground, no help.

since both sides are out, and there are two wing tip mounted HV power supplies unlikely a ground or a bulb.

i checked voltage at the strobe switch and it’s working fine.

so somewhere after the switch there is a break in the flow of voltage.

the switches must be a combo switch/breaker as I don’t see a separate breaker for the strobes.

as I said it’s pretty difficult to follow the wires from the switch as the wires are in the wings. The power supplies are in the wing tip area and the rivets would have to be drilled out to access the supplies.

i may end up replacing the wing mounted strobes with LED Nav/strobe units and use the nav circuit to power them.

the old strobe/nav lights take to much juice anyway, so it may be a good time to upgrade.

RSS

New from Zenith:

Zenith Planes For Sale 
  

Classified listing for buying or selling your Zenith building or flying related stuff...

Custom Instrument Panels
for your Zenith:

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, Dynon and Garmin avionics, and more.

Zenith Homecoming Tee:

Zenair Floats

Flying On Your Own Wings:
 A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

Aircraft Insurance:

 
 

Transition training:

Lavion Aero

K&S Aviation Services

Aircraft Spruce & Specialty for all your building and pilot supplies!

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

© 2025   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service