787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Electrical -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 6.10.3
Push – disconnects generator drive from engine.
Requires maintenance action on the ground to reconnect generator drive.
Illuminated (with the engine running) (amber) – a generator drive malfunction has
occurred.
ON – energizes cabin and utility systems when sufficient AC power is available.
OFF – de-energizes cabin and utility systems.
Illuminated (amber) – CABIN/UTILITY power switch is selected OFF.
ON –
• arms generator control breaker (allows it to close automatically when
power is available)
• closes generator field
OFF –
• opens generator control breaker
• opens generator field
• resets fault protection systems
Illuminated (amber) –
• the APU generator control breaker is open
• the APU GEN switch is selected OFF
Push – (if AVAIL light illuminated) closes aft external power contactor.
Push – (if ON light illuminated) opens aft external power contactor.
Illuminated (white) – aft external power is powering the large motor power system
for right engine start.
Illuminated (white) –
• aft external power is plugged in and power quality is acceptable
• extinguishes when the ON light illuminates
10
Generator Drive Disconnect (DRIVE DISC) Switches
11
Generator DRIVE Lights
12
CABIN/UTILITY Power Switch
13
CABIN/UTILITY Power OFF Light
14
APU Generator (APU GEN) Switches
15
APU Generator OFF Lights
16
AFT External Power (AFT EXT PWR) Switch
17
AFT External Power ON Light
18
AFT External Power AVAIL Light
February 15, 2010
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