[unclebilly]

I suspect a slow(ish) leak at the carbon fibre - titanium glued lap joint. The elastic modulus mismatch of these 2 materials means that they move at different rates when exposed to loading (external pressure in this case). I’ve used engineering adhesives in downhole tools for 15 years. These tools see as much as 15000 psi (3 times the hydrostatic pressure at the titanic) but the loading scenario is different.

It sounds like this may have the 2nd best case conclusion, the best case being finding those on board alive and unharmed. In this case, the families can get closure (if the debris is indeed from the submersible).

I’m surprised there is a debris field if my suspicions are correct - the sub should be mostly intact.

We will see.