Red sector
Red sector was a section aboard  scout ships. 

While a landing party from  attempted to rescue the crew of the  in 2151, trapped in the atmosphere of a gas giant, Ensign Hoshi Sato pointed out their location on a display near where they docked, and translated the language, which she determined to be Klingon, to point out that they were located on deck two, red sector. ()

Spacecraft sections