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GEAR
Lift-off 800 feet radio altitude or
140 seconds after nose gear
strut lift-off, whichever
occurs first
EICAS advisory
message FUEL
TANK/ENG
FUEL TANK/ENG Lift-off Ten minumtes after lift-off
April 01, 2001
747 Operations Manual
Warning Systems -
System Description
Copyright © The Boeing Company. See title page for details.
D6-30151-425 15.20.19
If an EICAS warning or caution message continues to be displayed when the
inhibit ends, the respectiveMasterWARNING or CAUTION lights illuminate and
aural alert sounds.
TCAS Inhibits
Alerts Inhibited During Landing
EICAS Event Record
Pushing the EICAS EVENT RCD switch records currently displayed engine
indications and additional EICAS maintenance information. Up to five events
may be recorded by the first five pushes. The system also records out of limit
parameters and related conditions automatically when a system parameter is
exceeded.
Alert Inhibited Inhibited
INCREASE DESCENT RAs Below approximately 1,500 feet radio altitude.
DESCENT RAs Below approximately 1,100 feet radio altitude.
All RAs Below approximately 1,000 feet radio altitude.
When RA selected on panel, TCAS switches
automatically to TA only mode. and TCAS
message TA ONLY is displayed on ND.
All TCAS voice alerts Below approximately 1,000 feet radio altitude.
All TCAS alerts. GPWS and windshear warnings.
Alert Inhibited For Message Inhibit Begins Inhibit Ends
STATUS cue All EICAS status
messages
800 feet radio
altitude
Airspeed less than 75
knots
EICAS alert
message
WINDSHEAR SYS
(Message is
inhibited)
400 feet radio
altitude
Airspeed less than 80
knots
Master CAUTION
lights
Beeper
All EICAS caution
messages, except:
AUTOPILOT
AUTOTHROTTLE
DISC
NO AUTOLAND
SPEEDBRAKES
EXT
LAND 2 or
LAND 3
displayed on
PFD, and
200 feet radio
attitude
Airspeed less than 75
knots, or
40 seconds elapse, or
800 feet radio altitude
April 01, 2001
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
15.20.20 D6-30151-425
Warning Systems -
System Description
Intentionally
Blank
April 01, 2001
747 Operations Manual
Warning Systems Chapter 15
EICAS Messages Section 30
Copyright © The Boeing Company. See title page for details.
D6-30151-425 15.30.1
Warning Systems EICAS Messages
The following EICAS messages can be displayed.
Configuration EICAS Alert Messages
Message Level Aural Condition
>CONFIG FLAPS Warning Siren Flaps are not in a takeoff position when
airplane is on the ground, airspeed is less
than V1, three or more Fuel Control
switches are in RUN, and engine 2 or 3
thrust is in takeoff range.
>CONFIG GEAR Warning Siren Any landing gear is not down and locked
when any Thrust lever is closed below 800
feet radio altitude or when flaps are in a
landing position.
>CONFIG GEAR
CTR
Warning Siren Body gear are not centered when airplane
is on the ground, airspeed is less than V1,
three or more Fuel Control switches are in
RUN, and engine 2 or 3 thrust is in takeoff
range.
>CONFIG PARK
BRK
Warning Siren Parking brake is set when airplane is on
the ground, airspeed is less than V1, three
or more Fuel Control switches are in RUN,
and engine 2 or 3 thrust is in takeoff range.
>CONFIG
SPOILERS
Warning Siren Speedbrake lever is not DOWN when
airplane is on the ground, airspeed is less
than V1, three or more Fuel Control
switches are in RUN, and engine 2 or 3
thrust is in takeoff range.
>CONFIG STAB Warning Siren Stabilizer is not within the greenband
when airplane is on the ground, airspeed is
less than V1, three or more Fuel Control
switches are in RUN, and engine 2 or 3
thrust is in takeoff range.
>CONFIG
WARNING SY
Advisory A fault is detected in the configuration
warning system.
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
15.30.2 D6-30151-425
Warning Systems -
EICAS Messages
GPWS EICAS Alert Messages
TCAS EICAS Alert Messages
Airspeed and Altitude EICAS Alert Messages
Message Level Aural Condition
>ALT CALLOUTS Advisory Altitude advisories and Minimums
annunciations are no longer provided.
Message Level Aural Condition
GND PROX SYS Advisory GPWS alerts may not be provided.
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