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..ON
THR LEVER (AFFECTED ENGINE).................................................................
SLOWLY ADVANCE
�� If a stall recurs :
THR LEVER (AFFECTED
ENGINE).............................................................................REDUCE
�� If a stall does not recur :
Continue engine operation.
ENG TAILPIPE FIRE
CAUTION External fire agents can cause severe corrosive damage and should,
therefore, only be
considered after having applied following procedure :
MAN
START............................................................................................................................
................OFF
ENG MASTER
(affected)........................................................................................................................
OFF
AIR BLEED
PRESS.....................................................................................................................
ESTABLISH
BEACON.........................................................................................................................
........................... ON
ENG MODE
SEL...............................................................................................................................
CRANK
MAN
START............................................................................................................................
................. ON
�� When burning has stopped :
MAN
START............................................................................................................................
.........OFF
ENG MODE
SEL............................................................................................................................
NORM
ABN-70
5/6
AQU3I1CK8 R/AEF3E1RE9N/ACE3 H2A0ND/A B3O2OK1
ABNORMAL AND
EMERGENCY PROCEDURES 30 AUG 10
A318/A319/A320/A321 FLEET MSN
HIGH ENGINE VIBRATION
�� High N2 vibrations during engine start on ground :
Engine start should be aborted (if vibration indications are available), when the N2
vibration level
exceeds the 6.5-units advisory threshold. The subsequent start is to be initiated after
the engine has
completely spooled down. This procedure may be repeated a maximum of three times.
Report any N2
vibration advisory condition in the logbook.
�� High N1 or N2 vibrations in operation :
The ECAM’s VIB advisory (N1 > 5 units, N2 > 5 units) is mainly a guideline to
induce the crew to
monitor engine parameters more closely.
VIB detection alone does not require engine shutdown.
Note: 1. High engine vibrations may be accompanied by cockpit and cabin smoke,
and/or the
smell of burning. This may be due only to compressor blade tip contact with
associated
abradable seals.
2. High N1 vibrations are generally accompanied by perceivable airframe vibrations.
High N2 vibrations can occur without perceivable airframe vibrations.
�� If no icing conditions :
ENG
PARAMETERS...............................................................................................................
......CHECK
Check engine parameters and especially EGT ; crosscheck with the other engine.
Report in the
maintenance log.
�� If rapid increase above the advisory :
THRUST LEVER (affected
engine)......................................................................................RETARD
Flight conditions permitting, reduce N1 to maintain the vibration level below the
advisory threshold.
Note: If the VIB indication does not decrease following thrust reduction, this may
indicate other
engine problems. Apply the adequate procedure.
�� If icing conditions :
An increase in N1 vibrations in icing conditions, with or without engine anti-ice, may
be due to fan
blades and/or spinner icing.
A/THR.............................................................................................................................
.................. OFF
ENGINE
ANTI-ICE........................................................................................................................
CHECK
If ENG ANTI-ICE is off, switch it ON at idle fan speed, one engine after the other at
an approximate
30 s interval.
THRUST LEVER (one engine at a
time).................................................................INCREASE THRUST
Increase thrust to a setting compatible with the flight phase. The VIB level will return
to normal after ice
is shed, despite a slight increase during acceleration. Resume normal operation.
Note: When vibrations above the advisory level have been experienced during the
　
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