OPERATIONS MANUAL

Electrical
Ground Handling Bus – Equipment List:
Distribution
CB on P6
Circuit
breaker
o/s
BCU 1 (if not powered otherwise)
o/s
BCU 2 (if not powered otherwise)
direct P7 A25 Call panel electronics (non-freighter) **
direct P7 A26 Call panel electronics (freighter) **
o/s Fuel control – boost pump AFT 2 ***
direct direct Fueling (if not powered by main hot battery bus)
o/s
GCU 1 (if not powered otherwise)
o/s
GCU 2 (if not powered otherwise)
o/s
GCU 3 (if not powered otherwise)
o/s
GCU 4 (if not powered otherwise)
direct P7 F3 HYDIM 1 (can also be powered by DC bus 4) *
direct P7 J3 HYDIM 4 (can also be powered by DC bus 1)
direct direct Tire pressure monitor (can also be powered by DC bus 4)
Cargo Handling Bus – Equipment List:
Distribution
CB on P6
Circuit
breaker
o/s
o/s
Nose door (freighter)
WBS (can also be powered by ground service bus)
o/s : Circuit breaker for this device is located outside the flight deck
* On this bus if AUX 1 pump is installed
** If not powered otherwise
*** Can also be powered by DC bus 1
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