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• The ignition comes on automatically after the dry crank sequence, and cuts off automatically
when N2 reaches 43 %.
‐ Manual start :
• Both igniters start firing when the MASTER switch is switched ON.
• Both stop firing when N2 reaches 43 %.
IN FLIGHT
‐ Both igniters start firing when the MASTER switch is switched ON.
CONTINUOUS IGNITION
Applicable to: MSN
4566,,,
Continuous ignition may be selected either manually or automatically to maintain engine combustion.
MANUAL SELECTION
In flight, continuous ignition is on when the ENG START selector is on IGN/START, if the
corresponding engine is running.
On the ground after the engine is started, because ignition cuts off automatically, the flight crew
must switch the ENG MODE selector to NORM then back to IGN/START to turn on continuous
ignition.
It must be noted that the igniters should be turned off to conserve the life of the ignition system
components whenever ignition is not needed on the ground or in flight (mode selector on NORM
position).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
IGNITION AND STARTING - IGNITION SYSTEM
A318/A319/A320/A321 FLEET DSC-70-80-30 P 4/4
FCOM 19 AUG 10
CONTINUOUS IGNITION
Applicable to:
, ,
MSN
Continuous ignition may be selected either manually or automatically to maintain engine combustion.
MANUAL SELECTION
In flight, continuous ignition is on when the ENG START selector is on IGN/START, if the
corresponding engine is running.
Only one igniter is selected. If failed, both igniters are automatically selected.
On the ground after the engine is started, because ignition cuts off automatically, the flight crew
must switch the ENG MODE selector to NORM then back to IGN/START to turn on continuous
ignition.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
IGNITION AND STARTING - ENGINE STARTING SYSTEM
A318/A319/A320/A321 FLEET DSC-70-80-40 P 1/20
FCOM 19 AUG 10
GENERAL
Applicable to: ALL
The engine starting system consists of an air turbine starter and a start valve.
The start valve admits air supplied by the pneumatic system to operate the starter.
The FADEC controls the start valve electrically. If electrical control fails when the aircraft is on the
ground, a handle allows the start valve to be operated manually.
AUTOMATIC STARTING
Applicable to:
, ,
MSN
This sequence is under the full authority of the FADEC, which controls :
‐ the start valve
‐ the igniters
‐ the fuel HP valves
The FADEC :
‐ detects a hot start, a hung start, a stall, or no light up
‐ announces FAULT and identifies the fault in an ECAM message
‐ runs an abort sequence if a start aborts on the ground
• closes the HP valve
• closes the start valve
• turns off ignition
• cranks the engine crank after the start abort in order to clear out fuel vapors
• controls any additional start attemps.
For an inflight start, the FADEC decides whether the engine is windmilling fast enough or needs
assistance from the starter in view of current engine parameters and flight environment parameters.
Flight crew may interrupt this start sequence by moving the MASTER switch to OFF.
AUTOMATIC STARTING
Applicable to: MSN
4566,,,
This sequence is under the full authority of the FADEC, which controls :
‐ the start valve
‐ the igniters
‐ the fuel HP valves
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
IGNITION AND STARTING - ENGINE STARTING SYSTEM
A318/A319/A320/A321 FLEET DSC-70-80-40 P 2/20
FCOM 19 AUG 10
The FADEC :
‐ detects a hot start, a hung start, a stall, or no light up
‐ announces FAULT and identifies the fault in an ECAM message
‐ runs an abort sequence if a start aborts on the ground when N2 < 50 %
• closes the HP valve
• closes the start valve
• turns off ignition
• cranks the engine crank after the start abort in order to clear out fuel vapors
‐ ensures an automatic dry crank sequence of 30 s at maximum motoring speed.
During engine start with residual EGT > 250 °C, an auto-crank function motors the engine until EGT
decreases below 250 °C.
There is no crew awareness message to indicate the reason for the extended motoring.
This auto-crank function may be activated in very hot condition (typically ISA + 40 °C) or short
turn-around times (< 20 min).
For an inflight start, the FADEC decides whether the engine is windmilling fast enough or needs
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 4(107)
