DS-55-2 was the identifier used for a TIE pilot within the Imperial Navy; this pilot served around the time of 0 BBY. During that year, amidst the Galactic Civil War fought between the Galactic Empire and the Alliance to Restore the Republic, the Alliance made an attempt to obliterate the Imperial DS-1 Orbital Battle Station superweapon during what came to be known as the Battle of Yavin. DS-55-2 participated in this battle, flying alongside many other TIE/LN starfighters that were trying to protect the battle station from the attacking Alliance starfighters. In the end, the TIE fighters failed to effectively defend the station, which was ultimately destroyed as the Alliance achieved victory over the Empire. The call sign was DS-55-2.
The name "DS-55-2" originated in the 2003 Battle of Yavin expansion for the Star Wars Trading Card Game created by Wizards of the Coast. Initially identified as the designation for a TIE fighter within the card game, the 2008 publication The Complete Star Wars Encyclopedia later established this name as the pilot's call sign for the associated TIE. This article operates under the assumption that the latter source is accurate.
In addition, the Star Wars Trading Card Game utilizes a still from a film depicting a TIE fighter, which was previously known as Black 4 and piloted by DS-61-4, in the 1996 A New Hope Limited expansion set within Decipher's Star Wars Customizable Card Game. This article regards the Star Wars Trading Card Game's identification of DS-55-2 as an error and furthermore avoids linking the subject to any of the TIE fighters depicted on screen during the Battle of Yavin scenes in the 1977 original trilogy film, Star Wars: Episode IV A New Hope.