OPERATIONS MANUAL

Electrical
Main Standby Bus – Equipment List: (continued)
Distribution
CB on P6
Circuit
breaker
direct P6 L1 Standby lighting with dimmers fixed at 12 V:
ATC lightplate 2 , ACP lightplates 2 ,
CDU L lightplate 2 , clock L lighting 1 ,
flood light – captain 2 ,
glareshield lightplates 3 , ISFD lightplate 1 ,
overhead CVR monitor lighting 4 ,
overhead air conditioning lightplate 5,
overhead anti-ice switch shutters 4,
overhead bleed air lightplate & switch shutters 5,
overhead cabin altitude lightplate 1,
overhead ELT lightplate 5 , overhead fire lightplate 5 ,
overhead ice and rain protection lightplate 1 ,
overhead ignition and jettison lightplate 1 ,
overhead ignition switch shutter 4 ,
overhead IRS lightplate 4 ,
overhead light control L lightplate 5 ,
overhead light control R lightplate 5 ,
overhead miscellaneous lightplate 5 ,
overhead window heat switch shutters 1,
RMI L lighting 1 ,
RTP L lightplate 2 ,
standby attitude/airspeed/altimeter lighting 1 ,
standby compass lighting (if controlled by captain) 1 ,
standby compass lighting (if controlled by glareshield) 3 ,
direct P6 G19 Standby ignition – engine 1
direct P6 G20 Standby ignition – engine 2
direct P6 G21 Standby ignition – engine 3
direct P6 G22 Standby ignition – engine 4
direct P7 A9 VOR L & marker beacon
1 On this bus if AC bus 4 is unpowered or if P6 E19 is pulled
2 On this bus if AC bus 4 is unpowered or if P6 E22 is pulled
3 On this bus if AC bus 4 is unpowered or if P6 E21 is pulled
4 On this bus if AC bus 4 is unpowered or if P6 E19 and E20 are pulled
5 On this bus if AC bus 4 is powered and if P6 E19 is pulled
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