*
Flaps not retracted
*
Engine flameout.
The engine anti-ice condition makes sure the ignition system operates during icing conditions. The flaps not retracted condition makes sure the ignition system operates during takeoff and landing. The EEC identifies an engine flameout when N2 decreases quickly.
When the engine is shut down, automatic operation of the ignition system stops.
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IGNITION -OPERATION
Continuous Ignition
The flight crew uses continuous ignition during severe weather conditions. When you put the start/ignition selector in the CON position, the EEC uses both igniter plugs. When the engine is shut down, the operation of continuous ignition stops.
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PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
IGNITION -OPERATION
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D633W101-BEJ May 05/2003
