FX-6 was used during the extensive repairs to General Grievous after a horrible shuttle crash. During Darth Vader's reconstruction, the same FX-6 unit performed numerous blood transfusions, and stabilized terrible damage done to Vader's lungs, eyes, vocal cords, scalp, face, arms, and legs. This FX-6 was damaged by Darth Vader after the Dark Lord was told he had killed his wife. However, the droid appeared to be functional when Vader's Force blast ceased.
- Star Wars: Episode III Revenge of the Sith (First appearance)
- Star Wars Insider 81
- Star Wars: Revenge of the Sith: The Visual Dictionary
- The Complete Star Wars Encyclopedia
- Star Wars: The Complete Visual Dictionary (as FX-9)