Leaks in the steam piping and separators are not handled, except for maintaining slightly lower pressure in the riser pipe gallery and the steam drum compartment than in the reactor hall.
12.
Marcia McNutt, director of the U . S . Geological Survey, calculated that if the riser pipe was full of oil, it could hold at most because it's open on both ends.
13.
This move eliminated the riser pipes completely . # 7 MBT, after stability and buoyancy calculations were run was found to be redundant and was converted to a variable fuel oil tank as mentioned above.
14.
A design weakness of earlier classes solved by the " Tench " re-design were the ballast tank vent riser pipes that passed through the interior of the boat in the forward and after torpedo rooms.
15.
The USCG suggested the sheen " could be residual oil associated with wreckage and / or debris left on the seabed " like the riser pipe, but said that no one yet knows its origin for sure.
16.
At some point the " air bubble " will extend below the bottom of the riser pipe, which will allow some of the air to escape through the riser, pushing the water that is already in the pipe up with it.
