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• [b737ng:ac_standby_bus]

AC Standby Bus

The AC Standby Bus is normally powered by AC Transfer Bus 1, although in the event that all AC power is lost it is powered by the battery through the static inverter.

115V AC standby bus

• 115V AC Standby Bus Indication
• 28V AC Standby Bus
• ADF 1
• ADIRU L AC
• ATC 1
• DME 1
• Engine 1 Ignition Right
• Engine 2 Ignition Right
• Flood Light Standby
• FMC 1
• MCDU 1
• MMR 1
• Nav Control Panel 1
• RMI (standby)
• SCU Fan Power
• VOR/MKR Beacon 1

28V AC standby bus

• ADIRU L EXC
• Emergency Panel Light (via 5V AC transformer)
• SMYD 1 Sensor EXC AC

Categories: Boeing 737NG | Electrical