Problem tylannitride SNF 2010-08-04 23:20:58: boat rail scraping tube

[hector at snf.stanford.edu]

I did one run and noticed that when the boats are coming out that the  cantilevered rail is not centered within the tube.  The baffle shields smaked the tube opening on the way in and scrapped the tube wall all the way down.
Don't use the tube until maintenace can fix.  Wasn't sure if this should be a full shutdown.