| Grey Backdrop |
| Bleed Air Panel 800/900 |
DUAL BLEED Light
Illuminated -
APU bleed air valve is open and the engine No. 1 BLEED air
switch is ON, or the engine No. 2 BLEED air switch is ON and
the APU* bleed air valve and the isolation valve are both open.
*The APU is operating.
Illuminated -
APU bleed air valve is open and the engine No. 1 BLEED air
switch is ON, or the engine No. 2 BLEED air switch is ON and
the APU* bleed air valve and the isolation valve are both open.
*The APU is operating.
