snail trail burn marks on panel

[JWLV]

While washing off my panels today, I noticed that one panel has a burn mark where a snail trail ends.
I have not noticed any difference in production and nothing out of the ordinary. Is this something of concern?
This was part of a pallet of panels I got from Santan Solar.

 

[JWLV]

Here's another picture of the affected area zoomed in.

 

[Solarcabin Channel]

That second pic looks nasty. I think I would replace that one.

 

[timselectric]

I would replace both.
Burning is bad.

 

[Crowz]

I'd definitely ditch the burned ones. I have some old panels with the snail trails but I've never had one have burn marks from it.

 

[Nobodybusiness]

Here's another picture of the affected area zoomed in.

View attachment 176048

That’s a burnt trace.
I would replace that one.

 

[JWLV]

Yep, I'm planning to replace that panel in a few days.

 

[JWLV]

I replaced the burned panel yesterday. Here is a better look at the panel, front and back.

 

[Checkthisout]

I have the exact same panels. Failed back sheet deal from santan. Paid like $22.00 a panel or something 3 years ago.

They are working fine but thanks for the heads up. I'll check mine closer after seeing this.

I did apply sealant to the cracks though they are in an extremely corrosive environment.