ARA San Juan
On the 24th the BBC did a nice round up of what was known about the ARA San Juan and its crew of 44: President pledges inquiry to ‘know the truth’. This was after the US and a separate UN agency reported an underwater explosion in the area near the San Juan‘s last reported position.
Today it was reported: Water got in missing sub’s snorkel, caused short circuit, Argentine navy says.
So there was a problem with the snorkel, but after shifting to a different battery pack, the captain decided to submerge and continue. If the there was a problem with the seals or valves on the snorkel, I don’t understand why they wouldn’t have continued on the surface.