S9-43 is a synth runaway from the Institute in 2287.
Background[]
S9-43's last known location was near the Boston Airport. The Synth Retention Bureau suspended its efforts to reclaim S9-43, as the airport area was deemed too hazardous, likely due to the Brotherhood of Steel's recent arrival.[1]
Appearances[]
S9-43 is mentioned only in Fallout 4.