Starbase 243
Referenced in the second draft script of the  fifth season episode , Starbase 243 was a Federation starbase to which the  was en route when it first encountered the Kataan probe. In the script, the facility's name was formatted "Starbase Two-Four-Three".

In the final draft of the episode's script, this line was changed to instead reference Starbase 218.  By the time the episode was finalized, all mention of such a starbase was removed from the episode entirely.
Unused production material