Partial Secondary Engine Indications
Partial secondary engine indications can display when the secondary engine
display is not selected.
1 N2
Displays if an operating limit reached.
2 OIL P, OIL T, OIL Q
Displays if:
• a caution range or operating limit reached
• oil differential exceeded
• oil quantity low
86 86 86 86
9 9
OIL
OIL
OIL
V B
Q
T
N2 BB
2
2
P
I
N
1 1 1 1
17 1 7 1
2 2
98 8 8 98
FAN LPT
2 2 2 2
96 96 962 96
1 0 1
SECONDARY EICAS DISPLAY
3
1
2
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
7.11.8 D6-30151-425
Engines, APU -
Secondary Engine Indications
3 VIB
Displays if a display indicator reached.
December 01, 1999
747 Operations Manual
Engines, APU Chapter 7
Compact Engine Indications Section 12
Copyright © The Boeing Company. See title page for details.
D6-30151-425 7.12.1
Compact Engine Indications
Compact engine indications display when only oneCRT is available for EICAS.
Compact Engine Display
1 Compact Engine Indications
Displayed continuously:
• N1
• EGT
Displayed when selected by secondary engine display switch, or in flight if a Fuel
Control switch is moved to CUTOFF:
• N2
• FF
• OILP
PRIMARY EICAS DISPLAY
86 86 86
9
86
9 9 9
5 2
AT - C CRZ
N1
EGT
T
N2
FF
VIB B
OIL P
OIL
OIL
T
12 12 Q 12 12
FAN17 LPT1 7 1
4
662 662 662 662
8 8 8 8
1 1
1
B
9 9 9 9
9 9 95 95
9 9 9 9
2 2 2 2
2
2
2
2
2
2
2
5
5 5
5 5
6 6 6 6
3 3 3 3
N20
3 3 3 3
1
2
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
7.12.2 D6-30151-425
Engines, APU -
Compact Engine Indications
• OILT
• OILQ
• VIB
2 Partial Compact Engine Indications
N2, or OIL P, OIL T, OIL Q, or VIB display if:
• a secondary engine parameter exceedance occurs when secondary engine
indications are not selected, or
• a secondary EICAS display other than secondary engine is selected when
partial secondary engine indications are displayed on secondary EICAS
Compact Start Indications
1 EGT Start Limit
Displays red.
2 Crossbleed Start
Displays magenta.
3 Fuel-on Indicator
Displays magenta.
0 0
5 1
44 44 44
989 989 989
57
XB
FF
N2
714 714 EGT 714 750
15
1
2
3
PRIMARY EICAS DISPLAY
December 01, 1999
747 Operations Manual
Engines, APU Chapter 7
Engine Controls Section 13
Copyright © The Boeing Company. See title page for details.
D6-30151-425 7.13.1
Engine Controls
Thrust Levers
1 Reverse Thrust Levers
Control engine reverse thrust.
Reverse thrust can only be selected when Forward Thrust levers are closed.
Actuates automatic speedbrakes (refer to Chapter 9, Flight Controls).
2 Forward Thrust Levers
Controls engine forward thrust.
Thrust levers can only be advanced when Reverse Thrust levers are down.
CONTROL STAND
1
2
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
7.13.2 D6-30151-425
Engines, APU -
Engine Controls
Fuel Control Switches
1 FUEL CONTROL Switches
RUN (Autostart switch ON) –
• opens spar fuel valve
• opens engine fuel valve
• EEC sequences start valve, fuel metering valve, and igniter operation
RUN (Autostart switch OFF) –
• opens spar fuel valve
• opens engine fuel valve
• energizes igniter(s)
CUTOFF –
• closesfuelvalves
• removes igniter power
• commands related hydraulic demand pump to operate when Demand
Pump selector in AUTO
• unlocks Engine Fire switch
CONTROL STAND
FUEL CONTROL
2
RUN
CUTOFF
3 4
RUN
CUTOFF
1
1
December 01, 1999
747 Operations Manual
Engines, APU -
Engine Controls
Copyright © The Boeing Company. See title page for details.
D6-30151-425 7.13.3
Engine Start Panel
1 Engine START Switches
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