T-bird's TLA-1R Ash Tele

[FrankenWashie]

Is there any sort of a hairline fracture in the end grain there? It sounds like a separated section or a perhaps a partially filled void (hairline) under that little brown/green section?
Maybe wick some thin CA glue into it along that dark brown line and see if that makes a difference?

[Thunderbird]

Is there any sort of a hairline fracture in the end grain there? It sounds like a separated section or a perhaps a partially filled void (hairline) under that little brown/green section?
Maybe wick some thin CA glue into it along that dark brown line and see if that makes a difference?

It's a groove. I will try that, thanks.