PRIMARY DISPLAY SYSTEM -FLIGHT CONTROLS SYNOPTIC
Flight Control Mode
NORMAL, SECONDARY, or DIRECT shows for the applicable flight control mode. NORMAL is white and SECONDARY and DIRECT are amber. The box and message goes away when no data is available.
Hydraulic System Status
The hydraulic system status blocks show when there is low pressure in any of the three systems. L, C or R show for the applicable system. The system with low pressure shows as an amber letter and box. The normal systems show as green letters and boxes.
When all three systems are normal, the display goes away.
Actuator Control Electronics (ACE) Status
The ACE status blocks show when there is a failure. L1, L2, C, or R show for the applicable system. The box and label for the failed system shows in amber. The normal systems show as green letters and boxes.
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PRIMARY DISPLAY SYSTEM -GEAR SYNOPTIC
General
The Gear synoptic shows this information:
*
Tire pressure
*
Gear door information
*
Brake temperature
*
Brake symbols
*
Brake deactivation/antiskid status.
Tire Pressure
Tire pressure shows in each tire symbol. Normal pressures show in white. Non-normal tire pressure shows in amber. Invalid tire pressure information shows blank.
Gear Doors
The message CLOSED shows in the door symbol when the nose gear doors or the main landing gear doors close. When the doors are in transit, diagonal lines show in the door symbol. For invalid conditions, the door symbols go away.
Brake Temperature
Brake temperature shows as a digital readout next to the wheel symbol. Temperatures show as numbers on a scale that relates to actual brake temperatures. Normal temperatures are white readouts. Non-normal temperatures are amber readouts. Invalid brake temperature information shows blank.
Brake Status and Symbols
The brake symbol is a vertical bar next to the wheel symbol.
These are the four conditions and displays for the brakes:
*
Brake invalid -a white symbol and blank digital temperature readout
*
Brake normal -a white brake symbol and digital temperature readout
*
Brake hottest -a solid white brake symbol shows on each truck for the hottest brake. The temperature readout remains white
*
Brake overheat -the brake symbol and digital temperature readout change to amber. This cancels the brake hottest indication for that truck.
Brake Deactivation/Antiskid
The message BRAKE or ASKID shows next to the applicable wheel when there is a brake deactivation or an antiskid condition.
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PRIMARY DISPLAY SYSTEM -DOOR SYNOPTIC
General
The door synoptic shows the status of these doors:
*
Access doors
*
Passenger entry doors
*
Cargo doors.
The names of the doors always show. An amber symbol shows when a door is open or not completely closed. Cargo and access doors show nothing when they are fully closed. Invalid door information shows a white door symbol outline.
The slide arming handle position shows when the entry doors are fully closed. The symbol shows:
*
A -for handle armed
*
M -for handle in manual.
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PRIMARY DISPLAY SYSTEM -FUEL SYNOPTIC
General
The fuel synoptic shows APU and ENG normal and non-normal pump status. The fuel synoptic also shows other ENG normal and non-normal fuel data. The fuel synoptic shows:
*
APU pump status
*
ENG pump status
*
Total fuel
*
Fuel quantity
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