(3)
Parameter exceedances are indicated by a change in the color of the associated display. The color(s) of the displayed parameters are identical to those presented on the EICAS primary and secondary display formats.
(4)
The EGT start limit is indicated by a numeric readout displayed between the boxes enclosing the EGT readout. The start limit is displayed when either engine on a given wing is not running. For the N2 data, the cross-bleed start annunciator is given as XB and the fuel-on Command is presented by a numeric readout.
(5)
The format for the display of subsystem information such as gear, flap and cabin pressure data is identical to that presented on the EICAS primary display format.
11. EICAS Status Display (Fig. 40)____________________
A. General
(1)
The EICAS status format presents information which aids in the evaluation of airplane dispatch status.
(2)
This format is selected for display on the auxiliary DU by pressing the STAT switch on the EICAS Display Select Panel (DSP).
(3)
The status page shows information such as hydraulic, Auxiliary Power Unit (APU), oxygen pressure, battery, and control surface data.
(4)
The following paragraphs describe the various parameters which are indicated on the EICAS status display.
B. Hydraulic Quantity
(1) Displayed by digital readouts in scaled units (1.00 = 100% full). The message RF (refill) or LO (low quantity) will follow the respective readout to indicate a low hydraulic quantity condition (on the ground only).
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MAINTENANCE MANUAL
PRIMARY THRUST DATA
PRIMARY ENGINE PARAMETERS
SECONDARY ENGINE PARAMETERS
SUBSYSTEM INFORMATION
EICAS MESSAGES
LANDING GEAR
LE/TE FLAPS
FUEL DATA
EICAS Compacted - Full Display
Figure 38
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ú 10 Page 82F
ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
PRIMARY THRUST DATA
PRIMARY ENGINE PARAMETERS
SECONDARY ENGINE PARAMETERS
SUBSYSTEM INFORMATION
EICAS MESSAGES
LANDING GEAR
LE/TE FLAPS
FUEL DATA
EICAS Compacted - Partial Display
Figure 39
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MAINTENANCE MANUAL
HYDRAULIC QUANTITY
HYDRAULIC PRESSURE
HYDRAULIC TEMPERATURE
AUXILIARY POWER UNIT DATA
OXYGEN
PRESSURE
MAIN BATT
DATA
APU BATT
DATA
STATUS
MESSAGES CONTROL SURFACE POSITIONS
STATUS
EICAS Status Display
Figure 40
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A40481
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MAINTENANCE MANUAL
C. Hydraulic Pressure
(1) Displayed by digital readouts in units of psi.
D. Hydraulic Temperature
(1) Displayed by digital readouts in units of °C.
E. APU Information
(1)
APU Exhaust Gas Temperature (EGT) is displayed by a digital readout in units of °C. For EGT less than zero, the readout indicates zero. For EGT greater than or equal to 1000°C, the leading (left) digit is removed.
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