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immediately:
• APU fire/inlet overtemperature
• overspeed/loss of overspeed protection
• high EGT
• low oil pressure
• high oil temperature
• ASG oil filter approaching bypass
• intake door failure
• APU controller failure
• speed droop
• no combustion on start
• no acceleration on start
• APU starting failure
• Air inlet door failed closed
• Oil temperature sensor failed
• Oil pressure sensor failed.
There is no cooldown period.
787 Flight Crew Operations Manual
Engines, APU -
APU System Description
7.30.4 Boeing Proprietary
Intentionally
Blank
787 Flight Crew Operations Manual
Engines, APU Chapter 7
EICAS Messages Section 40
Boeing Proprietary 7.40.1
7.40 Engines, APU-EICAS Messages Engines, APU EICAS Messages
The following EICAS messages can be displayed.
APU
Engine
Control
Message Level Aural Condition
APU LIMIT Caution Beeper APU operation has exceeded a limit.
APU
SHUTDOWN
Advisory APU has automatically shut down.
Message Level Aural Condition
ENG CONTROL
L, R
Advisory Fault is detected in the affected engine
control system.
ENG COUPLING
L, R
Caution (TBD)
ENG EEC MODE
L, R
Advisory Control for the affected engine is operating
in alternate mode.
ENG FAIL L, R Caution Beeper Engine speed is below idle.
ENG IDLE
DISAGREE
Advisory One engine is at approach idle and the other
engine is at minimum idle.
ENG LIMIT
EXCEED L, R
Caution Engine indications are exceeding limits.
ENG LIMIT PROT
L, R
Caution Beeper Engine control is operating in alternate
mode and commanded N1 exceeds
maximum N1.
ENG LPC
ANTI-ICE L, R
Advisory Engine anti-ice capability is degraded.
(LPC)
ENG REV
AIR/GND
Caution Thrust reverser control system has lost
air/ground protection to prevent inadvertent
deployment in flight.
ENG REV
COMMANDED
L, R
Caution Reverse thrust lever is not stowed in flight.
787 Flight Crew Operations Manual
Engines, APU -
EICAS Messages
7.40.2 Boeing Proprietary
Start
Fuel
ENG REV
LIMITED L, R
Advisory Fault is detected that may prevent normal
deployment of the affected reverser.
ENG REVERSER
L, R
Advisory Fault is detected in the affected engine
reverser system.
ENG RPM
LIMITED L, R
Advisory Engine control is limiting affected engine
thrust to prevent N1, N2 or N3 from
exceeding the RPM operating limit.
ENG
SHUTDOWN
Caution Both engines were shutdown on the ground
by the fuel control switches or fire
switches.
ENG
SHUTDOWN L, R
Caution Engine was shutdown by the fuel control
switch or fire switch.
ENG SURGE L, R Caution (TBD)
ENG TBV OPEN
L, R
Advisory (TBD)
ENG THRUST L,
R
Caution Engine is producing greater than or less
than commanded thrust.
Message Level Aural Condition
ENG
AUTOSTART L, R
Caution Beeper Autostart hs failed to start the engine.
ENG START
CUTOUT L, R
Advisory Start selector remains in START when
engine is running.
ENG START
INHIB L, R
Advisory Engine starter operation is inhibited
because the starter duty cycle has expired.
ENG STARTERS
L, R
Advisory Engine starters are inoperative.
Message Level Aural Condition
ENG FUEL
FILTER L, R
Advisory An impending fuel filter bypass condition
exists on the affected engine.
ENG FUEL
VALVE L, R
Advisory Engine fuel or spar valve position
disagrees with commanded position.
Message Level Aural Condition
787 Flight Crew Operations Manual
Engines, APU -
EICAS Messages
Boeing Proprietary 7.40.3
Oil
Message Level Aural Condition
ENG OIL PRESS
L, R
Caution Beeper Engine oil pressure is low.
ENG OIL TEMP
L, R
Advisory Engine oil temperature is high.
ENG OIL FILTER
L, R
Advisory Affected engine oil filter contamination
has caused filter bypass.
787 Flight Crew Operations Manual
Engines, APU -
EICAS Messages
7.40.4 Boeing Proprietary
Intentionally
Blank
787 Flight Crew Operations Manual
Fire Protection Chapter 8
Table of Contents Section 0
Boeing Proprietary 8.TOC.0.1
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