R5-L4
this astromech was owned by Kyp Durron, and used to assist in piloting Kyp's T-65XJ starfighter, during the years leading up to the Yuuzhan Vong invasion of the galaxy. It was R5-L4 - known as Elfour - who located the record of the ExGal-4 Spacecaster shuttle as it passed through the Veragi Sector on its way to Helska. When the Dozen-and-Two Avengers were intercepted by the Yuuzhan Vong at Helska, Kyp was the only member to escape the ambush. However, in a desperate flight into hyperspace, R5-L4 was unable to prevent the X-Wing's internal systems from shutting down, then was destroyed itself in a flash of electric fire.