OPERATIONS MANUAL

Power Plant
Electronic Engine Control:
Engine autostart switch (engines 1, 2, 3, 4)
OFF Disables the autostart system on the associated
engine. The fuel control switch must not be set
to RUN before the N2 (or N3) RPM is spooled
up to the fuel-on minimum.
ON Enables the autostart system on the associated
engine. The fuel control switch must be set to
RUN to initiate the autostart program.
EEC switch (engines 1, 2, 3, 4)
NORM Enables the EEC to operate in normal mode.
On PW & RR models, EPR is used as the
controlling parameter.
ALTN Commands the EEC to operate in alternate
mode. N1 is used as the controlling parameter.
EEC operates in alternate mode.
ALTN
LIGHT
On GE models, autothrottle operation is possible
when all four EECs are in the same mode.
On PW & RR models, autothrottle operation is
possible when all four EECs are in normal mode.
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