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start.
‐ When expecting a start abort, because of :
• Degraded bleed performance, due to hot conditions, or at a high-altitude airfields.
• An engine with a reduced EGT margin, in hot conditions, or at a high-altitude airfields.
• Marginal performance of the external pneumatic power group.
• Tailwind greater than 10 kt
Starting in tailwind may fail due to N1 counterrotation, hot gas black flow. Fuel should be set to
ON at N2 max motoring speed, provided N1 has stopped, and turn clockwise. (confirmation by
the ground crew).
Applicable to:
, ,
MSN
Pilots normally use automatic starting to start an engine.
However, manual starting is recommended in the following cases:
‐ After aborting a start, because of:
• Engine stall
• Engine EGT overlimit
• Low start air pressure
‐ When expecting a start abort, because of:
• Degraded bleed performance, due to hot conditions, or at a high-altitude airfields.
• An engine with a reduced EGT margin, in hot conditions, or at a high-altitude airfields.
• Marginal performance of the external pneumatic power group.
Applicable to:
, ,
MSN
MANUAL ENGINE START PROCEDURE
THR LEVERS............................................................................................................................IDLE
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
POWER PLANT
A318/A319/A320/A321 FLEET PRO-SUP-70 P 7/16
FCOM 19 AUG 10
CAUTION The engine will start, regardless of the thrust lever position, and will rapidly
accelerate to generate the thrust demanded by the TLA, causing a hazardous
situation, if the thrust levers are not at idle.
ENG MODE selector.............................................................................................NORM THEN IGN
The lower ECAM displays the engine page.
ENG MAN START.........................................................................................................................ON
• Do not set the MAN START pb-sw to ON, before all amber crosses have disappeared on engine
parameters (upper ECAM display).
• On the ECAM lower display, check that the START VALVE is inline
• On the ECAM displays, check that the OIL PRESS increases, and N2 increases.
If N2 does not get up to 20 %, check that the pack valve autoclosure functions.. If the
autoclosure functions, shed APU loads as follows.
GALLEY...............................................................................................................................OFF
If needed, shed also:
BLUE ELEC PUMP (ground only)..................................................................................OFF
FUEL X FEED.................................................................................................................. ON
FUEL PUMPS except R TK PUMP 2.............................................................................OFF
BLOWER..................................................................................................................... OVRD
CAB FANS......................................................................................................................OFF
When N2 reaches 22 % or the maximum motoring speed (minimum 20 %):
The maximum motoring speed is defined as the speed at which N2 acceleration is less
than 1 % in approximately 5 s.
MASTER switch................................................................................................................ON
The PNF starts the timing for monitoring the light-up delay.
ECAM displays.......................................................................................................... CHECK
Check : ‐ Indication of igniters A and B
‐ Fuel flow increase
‐ EGT and N1 increase 15 s (maximum) after fuel is on.
If the electrical power supply is interrupted during the start sequence (indicated by loss of
ECAM CRTs), abort the start by setting the MASTER switch to OFF. Then perform a 30 s
dry crank.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
POWER PLANT
A318/A319/A320/A321 FLEET PRO-SUP-70 P 8/16
FCOM 19 AUG 10
When N2 reaches 50 %
ECAM displays....................................................................................................CHECK
Check : ‐ START VALVE crossline (between 50 and 56 % N2)
‐ Igniter indication off
‐ Main and secondary engine idle parameters normal.
Gray background on N2 indication disappears.
Note: CFM ENG. 56-5-B1/B2 engines accelerate slowly from 50 % N2 to idle. Start
abort is not required as long as N2 is increasing.
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 14(104)
