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13-12 For Training Purposes Only
Jan 04
P I LOT T R A I N I N G GU I D E
EICAS Hydraulic Synoptic Page Color Coding (2 of 2)
Figure 13-9
Hydraulic shutoff valve is open
Hydraulic shutoff valve is not closed after actuation of the
respective ENG FIRE PUSH switch/light with an engine fire
Engine-Driven Pump
Input Line
P604_13_018
Description Symbol Condition
1A 1B 3A 3B 2B 2A Hydraulic pump output pressure is normal
Hydraulic Pump
1A 1B 3A 3B 2B 2A
1A 1B 3A 3B 2B 2A
1A 1B 3A 3B 2B 2A
Hydraulic pump output pressure is low (less than 1800 psi)
Hydraulic pump output pressure is ready for operation
Invalid data
Invalid data
Engine running
Engine off
Engine Outline
Hydraulic Pump Output Line,
Pressure Manifold
Input Line, Pressure
Manifold Output Line
Hydraulic pressure is greater than 1800 psi
Hydraulic pressure is less than 1800 psi
Hydraulic Pressure
Readout
3000
PSI
3300
PSI
1700
PSI
Hydraulic pressure is between 1800 psi and 3200 psi
Hydraulic pressure is greater than 3200 psi
Hydraulic pressure is 1800 psi or less
Invalid data - - - -
PSI
Adequate pressure (greater than 1800 psi) is available to
operate systems (e.g. all systems powered by Hydraulic
System 1 are receiving adequate pressure)
Insufficient pressure (less than 1800 psi) is available to operate
systems (e.g. FLT SPLR and GND SPLR are inoperative due
to insufficient pressure)
Invalid data
(e.g. Hydraulic System 1 system distribution table shown)
System Distribution Table
RUDDER
L ELEVATOR
L AILERON
FLT SPLR
GND SPLR
RUDDER
L ELEVATOR
L AILERON
FLT SPLR
GND SPLR
RUDDER
L ELEVATOR
L AILERON
FLT SPLR
GND SPLR
1A
1A
HYDRAULIC POWER
For Training Purposes Only
May 03
13-13
P I LOT T R A I N I N G GU I D E
EICAS Messages
MESSAGE MEANING
HYD EDP 1A
Respective engine pump pressure is less than 1800 psi.
HYD EDP 2A
HYD PUMP 1B
Respective AC motor pump pressure is less than 1800 psi.
HYD PUMP 2B
HYD PUMP 3A
HYD PUMP 3B
HYD SOV 1 Respective hydraulic shutoff valve is not closed after actuation of the respective
HYD SOV 2 ENG FIRE PUSH switch/light.
HYD 1 HI TEMP
Respective system temperature is greater than 96°C or greater than 107°C for 4
HYD 2 HI TEMP minutes after takeoff power is applied.
HYD 3 HI TEMP
HYD 1 LO PRESS
HYD 2 LO PRESS Respective system pressure is less than 1800 psi.
HYD 3 LO PRESS
HYD SOV 1 CLSD Respective hydraulic shutoff valve has closed after actuation of the respective
HYD SOV 2 CLSD ENG FIRE PUSH switch/light.
EICAS Messages
Table 13-1
13-14 For Training Purposes Only
May 03
HYDRAULIC POWER P I LOT T R A I N I N G GU I D E
Page Intentionally Left Blank

　
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