Mandatory Service Bulletin: Inspection and/or replacement of expansion tank assy. for ROTAX® 912, 914, 912 i, 915 i and 916 i (Series) Aircraft Engines

My tank is labeled 622051, but it looks OK to me. The only one that looks odd is #5, which exits the tank at an angle, so I kinda expect the weld to look different. Thoughts?

Thanks for posting, Jason.  The welds look OK to me, but I will be waiting for the experts to respond.  What borescope are you using?  I can't get as good quality images as you have.

Thanks,

Mike

Similar to yours, it sounds like, but mine has a side-view camera as well.

https://www.amazon.com/gp/product/B08NJ8627V

Wow, you got great shots...  Mine aren't nearly that clear.  I do have 2 different Depstech units, but they are both probably over 5 years old.  I tried both of them, but quality not nearly as good as your pics.

Jason, could you report back on what the 'experts' say re your welds.

Thanks

Paul