Systems Guide

A318/A319/A320/A321
Professional
SYSTEMS
Systems guide
Vol
4
04-03-47
11 July 2018
APPROACH CAPABILITIES ANNUNCIATIONS
AP 1+2
Autopilot 1 and 2 engaged (LOC/GS, Roll-out or Go-around mode armed or engaged
AP 1
Autopilot 1 engaged
AP 2
Autopilot 2 engaged
XFDY
1FD2 indicates FD is activated on both PFD
-FD- indicates FD is not activated on both PFD
A/THR
A/THR is activated by:
- Setting thrust levers between CL and IDLE, assuming previously armed
- Setting thrust levers between MCT and IDLE, assuming previously armed
- Depressing A/TRH pb on FCU with thrust levers in active range
- With ALPAH FLOOR active
A/THR
A/THR is armed
- On ground by setting thrust levers at FLX or TOGA detent
In flight by pushing A/THR pb with thrust levers out of active range or by engaging
GA
FUEL
GENERAL
The fuel system has the following functions:
• Store fuel in the tanks
• Supply the engines (and APU) with fuel
• Transfers fuel between tanks
• Cool the integrated drive generator and control the refueling operations.
• Note there is no fuel dumping possible on A320/321
TANKS
Two wing tanks and one center tank store the fuel, with a vent surge tank in each wing tip.
USABLE FUEL
WING TANKS
CENTRE TANK
TOTAL
VOLUME
2 X 7750 LITERS
2 X 2047 US GALLONS
8800 LITERS
2166 US GALLONS
23700 LITERS
6260 US GALLONS