Westervliet sent orders removing Enterprise from responsibility for the asteroid spaceship Yonada in 2268 after James Kirk initially proved unable to divert its course from inhabited Daran V system. (TOS: "For the World is Hollow and I Have Touched the Sky")
Background information Edit
Westervliet was played by Byron Morrow, who also portrayed Admiral Komack in TOS: "Amok Time". Although Westervliet's name was not spoken on screen, but appeared in the end credits, a noticeable change was made in Morrow's appearance compared to "Amok Time", where he was named in the script as Westervliet, to differentiate between the two characters.