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Engine Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.1
Primary Engine Indications . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.1
Secondary Engine Indications . . . . . . . . . . . . . . . . . . . . . . . . 7.20.1
Normal Display Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.2
Compact Display Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.3
Partial Display Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.3
Electronic Engine Control (EEC) . . . . . . . . . . . . . . . . . . . . . . . . 7.20.4
EEC NormalMode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.4
EEC AlternateMode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.4
EEC Idle Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.5
EEC Overspeed Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.5
Engine Start and Ignition System . . . . . . . . . . . . . . . . . . . . . . . . 7.20.6
Start Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.6
Autostart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.6
Manual Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.7
Engine Ignition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.7
Engine Start and Ignition System Schematic . . . . . . . . . . . . . 7.20.9
Engine Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.10
Engine Fuel SystemSchematic . . . . . . . . . . . . . . . . . . . . . . 7.20.11
Engine Oil System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.12
Engine Oil SystemSchematic . . . . . . . . . . . . . . . . . . . . . . . 7.20.13
Thrust Reverser System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20.14
April 01, 2001
747 Operations Manual
Engines, APU -
Table of Contents
Copyright © The Boeing Company. See title page for details.
D6-30151-425 7.TOC.0.3
Airborne VibrationMonitoring System . . . . . . . . . . . . . . . . . . . 7.20.14
APU SystemDescription. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.30.1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.30.1
APU Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.30.1
APU Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.30.1
APU Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.30.2
APU Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.30.2
EICASMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.40.1
Engines, APU EICASMessages . . . . . . . . . . . . . . . . . . . . . . . . . 7.40.1
Engine AlertMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.40.1
APU AlertMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.40.3
EngineMemoMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.40.3
APUMemoMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.40.3
April 01, 2001
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
7.TOC.0.4 D6-30151-425
Engines, APU -
Table of Contents
Intentionally
Blank
April 01, 2001
747 Operations Manual
Engines, APU Chapter 7
Primary Engine Indications Section 10
Copyright © The Boeing Company. See title page for details.
D6-30151-425 7.10.1
Primary Engine Indications
Primary Engine Display
1 Primary Engine Indications
Displayed full time on EICAS display:
• N1
• EGT
PRIMARY EICAS DISPLAY
95 2 95 2 95 2 95 2
662 662 662 662
T
EGT
N1
AT-14C CRZ
95 2 95 2 952 95 2
1
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
7.10.2 D6-30151-425
Engines, APU -
Primary Engine Indications
Mode Indications
1 Total Air Temperature (TAT)
Displayed (white) – TAT (degrees C).
2 Thrust Reference Mode
Displayed (green) – selected FMS thrust reference mode:
• TO - maximum rated takeoff thrust
• TO 1 – derate one takeoff thrust
• TO 2 – derate two takeoff thrust
• D–TO - assumed temperature derated takeoff thrust
• D–TO 1 – derate one assumed temperature derated takeoff thrust
　
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