GEN 2 switch selected ON.

  • The right Generator Breaker closes connecting the number 2
    IDG to its respective Transfer Bus.

  • The right GEN OFF BUS light extinguishes indicating that the
    number 2 IDG is powering its respective Transfer Bus.

  • The right BTB opens isolating both Transfer Busses.

  • The APU is disconnected from the Bus Tie and the APU GEN
    OFF BUS light illuminates.
The sequence of bus switching in the Electrical System SGR is for illustrative
purposes only  and is not meant to imply an approved procedure.
Electrical System SGR