Battery ground wire riding on rudder push tube

[Rick Junkin]

I found the battery ground wire riding on the rudder push tube when I was changing out the batteries. Looks like it's been that way for awhile. Does anyone have a picture of how this wire is supposed to be routed?

[N201MKTurbo]

That’s better than the hot wire rubbing on it. You could run it under the tube and massage it so it bends down from where it is bolted down. You could tie some lacing cord around the tail former where the stringer goes through and around the cable to hold it down.

[Fly Boomer]

  On 3/23/2025 at 1:05 AM, Rick Junkin said:

Does anyone have a picture of how this wire is supposed to be routed?

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You already have the best solution:  Look at other Bravos.

[Fly Boomer]

Fourteen in TN and 15 in NC.

[Yetti]

That is where Eagle 2nd battery ground is terminated.    You could undo it and run it on top of the bundle of cables.  When you rebolt it make sure the butt terminal is facing more forward and that will give you the slack you need.   The cable is stiff enough you just need to bend it up and it will stay.

  That whole area there is not wire pretty.   The wire bundle coming from the tail should not make that bend down like that.    Cut off all the ty wraps and pretty it up. 

The ty wrap holding the inline fuse block on number 2  battery should not be pointing up like that so rotate it around and cut off flush before you do.  It's going to slice your arm open.

Pro tip.   finger nail clippers will round off a ty wrap when cutting, but they are slow and clumsy.     I have some of the $50 Snap on flush cut pliers.    What I found though is the $8 nail and cuticle clippers in the cosmetic section at walmart are probably better than the Snap on.      Why are they better? because you can buy several pairs and not spend as much time trying to find where you put them down and I never see a Snap-on truck.  I probably have 8 pairs of them in various locations.   They smaller clippers are better for cutting ty wraps off a bundle of wires than a big pair of dykes.

[Fritz1]

under the rudder tube is probably better, wire will move down under g-load, will work on mine tomorrow to finish annual and snap a pic

[LANCECASPER]

One other thing I notice is that if that was my autopilot wiring from that servo I would want it in spiral wrap to protect it. Nothing worse that chasing down an intermittent problem caused by a chafed wire. (https://www.aircraftspruce.com/catalog/elpages/spiralwrap.php?clickkey=14760)

[Rick Junkin]

  On 3/24/2025 at 11:26 PM, LANCECASPER said:

One other thing I notice is that if that was my autopilot wiring from that servo I would want it in spiral wrap to protect it. Nothing worse that chasing down an intermittent problem caused by a chafed wire. (https://www.aircraftspruce.com/catalog/elpages/spiralwrap.php?clickkey=14760)

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That’s already on my to-do list. I have lots of spiral wrap on hand. 

[LANCECASPER]

  On 3/25/2025 at 1:26 AM, Rick Junkin said:

That’s already on my to-do list. I have lots of spiral wrap on hand. 

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Looking at it more closely, as the A/P wires travel further away from the servo it's very close to the battery cables. I can't imagine that for reasons of electrical interference that would be good.

[Rick Junkin]

  On 3/25/2025 at 1:31 AM, LANCECASPER said:

Looking at it more closely, as the A/P wires travel further away from the servo it's zip-tied to the battery cables. I can't imagine that for reasons of electrical interference that would be good.

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I agree. I’m planning to wrap and reroute that wiring. I almost looks like it was a temporary “in progress” bundling of the wires during the installation that didn’t get revisited to be secured in a final configuration.

EDIT: I’ve been having some flakey A/P behavior, this very well could be part of the problem.

[affricate]

  On 3/25/2025 at 1:35 AM, Rick Junkin said:

I agree. I’m planning to wrap and reroute that wiring. I almost looks like it was a temporary “in progress” bundling of the wires during the installation that didn’t get revisited to be secured in a final configuration.

EDIT: I’ve been having some flakey A/P behavior, this very well could be part of the problem.

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What kind of flakey A/P behavior? Curious. On long cross country flights I have to reset from time to time. 

[Rick Junkin]

  On 3/25/2025 at 2:55 AM, affricate said:

What kind of flakey A/P behavior? Curious. On long cross country flights I have to reset from time to time. 

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I was seeing the same thing. It appeared I was losing airspeed data just before the disconnects (airspeed turned yellow, airspeed trend bar showed max increase trend, wind data went away) although the anomaly wasn’t indicated in the downloaded data. 

My shop replaced the ADAHRS (GSU-25D) as the most likely cause but I’ve only been able to fly once since then. It was a short return flight from the shop but I didn’t have any disconnects.