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�� 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
flight, and if
possible, shut down the engine after landing, for taxiing.
ABN-70
1/10
AQU3I1CK8 R/AEF3E1RE9N/ACE3 H2A0ND/A B3O2OK1
ABNORMAL AND
EMERGENCY PROCEDURES 30 AUG 10
A318/A319/A320/A321 FLEET , , , , , , , ,
, , , , , , , , ,
ENG DUAL FAILURE - FUEL REMAINING - ENGINE RELIGHT
ATTEMPT
As long as none of the engines recover, the flight crew should apply this paper
procedure and then, if time
permits, clear ECAM alerts and check the ECAM. STATUS page.
LAND ASAP
ENG MODE
SEL..................................................................................................................................
... IGN
THRUST
LEVERS..........................................................................................................................
........IDLE
OPTIMUM RELIGHT
SPD................................................................................................................... 300 KT
In the case of a speed indication failure (volcanic ash), Pitch attitude for optimum
relight speed is:
WEIGHT Pitch (°)
At or below 50 000 kg/110 000 lb -4.5
60 000 kg/132 000 lb -3.5
70 000 kg/154 000 lb -2.5
At 300 kt, the aircraft can fly up to about 2 nm per 1 000 ft (with no wind).
LANDING
STRATEGY................................................................................................................DE
TERMINE
Determine whether a runway can be reached, or the most appropriate place for a
forced landing/ditching.
EMER ELEC
PWR............................................................................................................................
MAN ON
VHF1/HF1 ��
/ATC1.............................................................................................................................
USE
ATC.................................................................................................................................
...................NOTIFY
FAC
1....................................................................................................................................
OFF THEN ON
Resetting FAC 1 also enables rudder trim recovery, even if no indication is available.
�� IF NO RELIGHT AFTER 30 SEC:
ENG
MASTERS..................................................................................................................
　
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