Алвин
In 2013, cruise YK-13-05 by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) was undertaken to sample and live stream dives of the "DSV Shinkai 6500". However, the fiber optical cable was broken during spooling multiple times and was not fully recovered. Uncertainty in cable presence is a potential hazard for human-operated submersibles such as the "DSV Alvin", which cannot dive at Beebe due to safety concerns.