GE 9100c NXT anesthesia systems
On systems equipped with the Auxiliary Common Gas Outlet (ACGO), there is a potential for the auxiliary gas switch to unexpectedly switch from the ACGO position back to the circle position. On systems equipped with the Aux O2 + Air function the switch could unexpectedly switch from the Aux O2 + Air position back to the circle position. These situations could lead to hypoxia.
Worldwide
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2956-2018