TB-73 was a Galactic Republic Pelta-class Medical Frigate. Subsequent to the Second Battle of Geonosis during the Clone Wars, it was dispatched. Its mission was to collect provisions from a medical station located at Ord Cestus. These supplies were designated for the troops of Jedi General Mace Windu stationed on Dantooine. Nevertheless, the clone troopers belonging to Tango Company became infested with Geonosian brain worms; this threat was neutralized by Jedi Commander Ahsoka Tano, who achieved this by causing the ship's coolant tanks to rupture. The vessel then made its way to the Ord Cestus medical station, facilitating its subsequent quarantine.