737 Flight Crew Operations Manual
7.38
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D6-27370-4Q8-SJA
7.38
Caution! Exit the volcanic ash as quickly as
possible. Consider a 180° turn.
Consider a descending turn.
1 Don oxygen masks and smoke goggles, as needed.
2 Establish crew communications, as needed.
3 Autothrottle (if engaged) . . . . . . . . . . .Disengage
5 ENGINE START switches (both) . . . . . . . . . . FLT
6 PACK switches . . . . . . . . . . . . . . . . . . . . . HIGH
7 ENG ANTI–ICE switches (both). . . . . . . . . . . . ON
8 WING ANTI–ICE switch . . . . . . . . . . . . . . . . .ON
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Volcanic Ash
Condition:
Volcanic ash is suspected when one or more
of these occur:
•A static discharge around the windshield
•A bright glow in the engine inlets
•Smoke or dust on the flight deck
•An acrid odor.
Objective:
To exit the ash cloud and restart engines if
needed.
If conditions allow, run the engines at idle
thrust.
4
Thrust levers (both) . . . . . . . . . . . . . . . . Close
This step reduces possible engine damage
or flameout, or both, by decreasing EGT.
March 18, 2016
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