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green.
(3) EPR rating limit
The EPR rating limit, associated to the thrust limit mode, is displayed in blue.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
CONTROLS AND INDICATORS (IAE)
A318/A319/A320/A321 FLEET DSC-70-95 P 13/28
FCOM 19 AUG 10
In flight (or on ground with engines stopped) :
• The selected mode corresponds to the detent of the most advanced thrust lever
position.
• The rating limit is computed by the FADEC receiving the highest actual EPR value
(except on ground with engines stopped, where it is computed by the FADEC receiving
the most advanced thrust lever position).
Note: 1. When a thrust lever is set between two positions, the FADEC selects the
rating limit corresponding to the highest mode.
2. When idle is selected, the FADEC selects CL.
3. When MREV is selected, the EPR rating limit value is replaced by amber
crosses (MREV mode is limited by N1).
On ground (with engines running) :
• With engines running, on ground, whatever the lever position, this limit corresponds to
the TOGA thrust limit.
• With engines running, on ground, and if FLEX mode is selected, FLEX EPR is
displayed, whatever the thrust lever position between idle and FLEX/MCT.
(4) FLEX temperature
If FLX mode is selected, the flexible takeoff temperature selected through the MCDUs is
displayed in blue.
(5) EGT indicator
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
CONTROLS AND INDICATORS (IAE)
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FCOM 19 AUG 10
(A) Actual EGT
‐ It is normally green.
‐ It pulses amber, when EGT above 610 °C, except during the start sequence, or
for high power operation (FLEX takeoff or thrust lever above MCT or at maximum
REV, or activation of alpha-floor).
‐ It pulses amber, when EGT is above 635 °C during start sequence.
‐ It pulses red, when EGT is above 650 °C.
(B) Max EGT :
The amber index appears at 635 °C during the start sequence, then at 610 °C.
Not displayed during takeoff.
(C) Max permissible EGT :
EGT redline is at 650 °C. A red arc is displayed from 650 °C to the end of the scale.
(D) EGT exceedance :
If EGT goes over 650 °C, a red mark appears at its maximum value. It disappears
after a new takeoff, or after maintenance action through the MCDU.
(6) LP rotor speed (N1)
(A) Actual N1
It is normally in green.
It pulses amber, when N1 is above N1 rating limit.
It pulses red, when N1 is above 100 %.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
CONTROLS AND INDICATORS (IAE)
A318/A319/A320/A321 FLEET DSC-70-95 P 15/28
FCOM 19 AUG 10
(B) Max permissible N1
N1 redline is at 100 %. A red arc is displayed from 100 % to the end of the scale.
(C) N1 Exceedance
If N1 exceeds 100 % during a flight, this red mark appears and remains at the
highest N1 attained. It will disappear after a new takeoff, or after maintenance action
through the MCDU.
(7) HP rotor speed N2
The numbers are normally green. (During the start sequence, they are green on a grey
background).
When N2 is above 100 %, the indication turns red and a red cross appears next to it.
The red cross will disappear after a new takeoff, or after maintenance action through the
MCDU.
(8) Fuel flow
It is indicated in green.
At engine shutdown, the FF indication is replaced by amber crosses for about 15 s, prior
to going to zero.
Note: If case of a discrepancy between the real and displayed EGT, N1, N2, or FF
values, an amber CHECK message is displayed near the affected parameter
indication.
(9) IDLE indication
In flight, this legend appears in green when both engines are at idle. It flashes for 10 s,
then remains steady.
Applicable to: MSN
4566,,,
REVERSION TO N1 MODE
If the FADEC is unable to sense or to calculate EPR, an automatic reversion to N1 control mode is
provided.
The rotor speed reference depends on the thrust lever angle, T2, and altitude.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
CONTROLS AND INDICATORS (IAE)
A318/A319/A320/A321 FLEET DSC-70-95 P 16/28
FCOM 19 AUG 10
(1) LP rotor speed N1
(A) Actual N1
It is normally in green.
The index and numeric values pulse red, when N1 > 100 %.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
CONTROLS AND INDICATORS (IAE)
A318/A319/A320/A321 FLEET DSC-70-95 P 17/28
　
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