OPERATIONS MANUAL

Electrical
Main Hot Battery Bus – Equipment List:
Distribution
CB on P6
Circuit
breaker
K1 P6 H9 ACARS – DC
K1 P6 G7 BCU 2 (if not powered otherwise)
K1 P6 H8 Clocks – electronics
K1 P6 G8 Emergency evacuation – electronics (non-freighter)
K1 P6 J2 Equipment cooling differential press (freighter)
K1 P6 H6 Fire cargo main deck depressurization (freighter)
K1 P6 H5 Fire extinguisher – APU
K1 P6 H2 Fire extinguisher – engine 1 & 3 bottle A
K1 P6 H1 Fire extinguisher – engine 1 & 3 bottle B
K1 P6 H4 Fire extinguisher – engine 2 & 4 bottle A
K1 P6 H3 Fire extinguisher – engine 2 & 4 bottle B
K1 P6 H6 Fire extinguisher – cargo lower (combi & non-ER pax)
K1 P6 D26 Fire extinguisher – cargo lower 1 (freighter & ER pax)
K1 P6 D27 Fire extinguisher – cargo lower 2 (freighter & ER pax)
K1 P6 H7 Fire extinguisher – cargo main deck (combi)
K1 P6 J2 Fire extinguisher – cargo main deck metered 1 (combi)
K1 P6 J3 Fire extinguisher – cargo main deck metered 2 (combi)
K1 P6 H7 Fire switch unlock solenoid (non-combi)
K1 P6 C6 Fire switch unlock solenoid (combi)
K1 P6 G5 Fuel shutoff valve – APU
K1 P6 G1 Fuel shutoff valve – engine 1
K1 P6 G2 Fuel shutoff valve – engine 2
K1 P6 G3 Fuel shutoff valve – engine 3
K1 P6 G4 Fuel shutoff valve – engine 4
direct direct Fueling (can also be powered by ground handling bus)
K1 o/s GCU 1 (if not powered otherwise)
K1 o/s GCU 2 (if not powered otherwise)
K1 o/s GCU 3 (if not powered otherwise)
K1 o/s GCU 4 (if not powered otherwise)
direct P6 E8 IRU C – DC (during APU start)
direct P6 E7 IRU L – DC (during APU start)
direct P6 E9 IRU R – DC (during APU start)
K1 P6 G9 Overheat protection – main battery
o/s : Circuit breaker for this device is located outside the flight deck
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