Turning on anti-ice devices and air-conditioning packs…
Turning the autothrottles off prevents…
Climbing out of the ash could result in...
Setting idle thrust will result in…
Starting the APU...
If volcanic dust fills the flight deck...
b-increased engine debris build-up.
d- engines continuing to produce electrical power, bleed ait, and hydraulic power.
e- use flight deck oxygen at the 100 percent setting
a-the engines from increasing thrust automatically above idlie.
f-will improve the engine stall margins.
c-will mean systems can be powered in
