Thoughts 383 strange x mark

[Willdavies]

Evening all,

What are thoughts on this?
Possibly an old crack repair, but it's in an odd place/shape.

Thabks

[Steve Payne]

I have seen this before on engines and on some 727 Gearboxes. No idea why or what it is for. Maybe it was done on the production line for some reason?

Steve

[Willdavies]

Thanks Steve,

That's put my mind at rest!
I'll check the box when it's off, maybe I'll have a matching pair