Engine Warning and System Displays
APU System Display 2
5. APU EGT INDICATION - Displays green at normal operating temperatures. Becomes amber if temperature approaches maximum EGT. If temperature exceeds maxiumum EGT, the indication becomes red and the APU automatically shuts down.
6. APU BLEED VALVE POSITION INDICATOR
When vertical, valve is not closed (green). When horizontal, valve is fully closed (green).
7. APU BLEED AIR PRESSURE - Displays bleed air pressure in green. When the APU is running and the APU BLEED is selected off, it is normal for bleed pressure to read 0-2 PSI. Amber XXs replace the indication when ADIRS 2 is not available or is selected OFF.