787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Chapter 1Airplane General, Emergency
Equipment, Doors, Windows
Systems Description Section 40
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 1.40.1
1.40 Airplane General, Emergency Equipment, Doors, Windows-Systems Description
Airplane General, Emergency Equipment, Doors, Windows40 Systems DescriptionSystems Description
Introduction
This section describes miscellaneous airplane systems, including:
Common Core System
The Common Core System (CCS) provides a common computing network and
data exchange system for the majority of airplane systems. CCS operation is
automatic.
The CCSs main component is the Common Computing Resource (CCR), which
has a left and right cabinet. Separate modules within each CCR cabinet perform
distinct functions. The CCRs can isolate most faults, allowing the cabinet to
continue operation.
There are no CCS controls or indications for normal operations. In the event a
CCR fault occurs resulting in the loss of displays, a CCR reset procedure can be
found in the unannunciated non-normal checklist: LOSS OF ALL DISPLAYS.
Two (L, R) CCR RESET switches are located on the overhead panel for use during
this procedure.
CCS Start-Up
Depending on the power source available, the CCS can start-up the left CCR only,
or both CCRs.
Battery power start-up sequence:
• the BATTERY switch is pushed and the left CCR start-up cycle begins
(approximately 50 seconds in duration)
• the left CCR is on-line when the captain’s inboard and lower display unit
shows the default format (CDU pages)
Note: If external power becomes available during this start-up sequence, the
battery start-up sequence may terminate, and an external power start-up
sequence may begin.
• Common Core System (CCS)
• lighting systems
• oxygen systems
• doors
• flight deck seats
February 15, 2010
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