Electrical bus components Flashcards
Name big ticket items on the MAIN HOT BATTERY BUS
-All Fuel shutoff valves
-All Fire extinguishers
Name big ticket items on the APU HOT BATTERY BUS
-All IRUs
-APU controller
-Outflow valves
-APU door
Name big ticket items on the MAIN BATTERY BUS
-Fuel valves (all engines) and crossfeed valves
-Left VHF radio
-Alt APU Controler
Name big ticket items on the APU BATTERY BUS
-APU and ENG Fire/overheat DETECTION
-APU Fire horn
-DC fuel pump
Name big ticket items on the MAIN STANDBY BUS.
-STBY ignition for ALL engines
-L EIU, L CDU, L ILS
-Primary EICAS
Name everything on the APU STANDBY BUS.
-L PFD
-L ND
-L FMC
What busses are part of the standby system?
-MAIN HOT BATTERY BUS
-APU HOT BATTERY BUS
-MAIN BATTERY BUS
-APU BATTERY BUS
-MAIN STANDBY BUS
-APU STANDBY BUS
What is something important on the FO TRANSFER BUS?
-Autothrottle servo
-Lower EICAS
-R EUI, R FMC/CDU, R PFD, R ND,
What are the items on the GROUND SERVICE BUS?
-Main and APU battery chargers
-Fuel pumps for APU start
-Flight deck access lights, navigation, and service lights
-Misc. outlets and equipment
What are the items on the GROUND HANDLING BUS?
-Lower cargo doors
-Lower cargo handling equipment/lights
-Fueling system
-AUX. Hydraulic pump 4
What are the items on the MAIN DECK CARGO HANDLING BUS?
-Main deck cargo handling equipment/lighting
-Nose and side cargo doors
What are some items on a UTILITY BUS?
-Forward main fuel pumps 2 and 3
-Forward override/jettison pumps 2 and 3
-Center override/jettison pump
-Galley equipment
What is the primary and secondary source for the Ground service bus?
Primary: AC bus 1
Secondary: Whatever is powering the ground handling bus (EXT 1 or APU 1)
VIA Ground service switch
What is the primary and secondary source of the Captain Transfer Bus?
Primary: AC bus 3
Secondary AC bus 1
What is the primary and secondary source for the FO Transfer Bus?
Primary: AC Bus 2
Secondary: AC Bus 1
