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OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
A330 CONTROLS AND INDICATORS (RR, PW)
A330/A340 FLEET DSC-70-91 P 5/18
FCOM 19 AUG 10
ECAM
Applicable to: ,
GENERAL
The engine’s primary parameters are permanently displayed on the upper ECAM’s Engine
Warning Display.
The secondary parameters are displayed on the lower ECAM’s System Display, when selected
manually or automatically.
EPR mode is the normal mode. In the event that EPR is unavailable, an automatic reversion to N1
mode occurs. The engine’s primary parameters are then displayed differently.
In case all DMC ECAM channels fail, the engine’s primary parameters can be displayed on each
ND, using the ND selector on the EFIS control panel.
Applicable to:
PRIMARY PARAMETER
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
A330 CONTROLS AND INDICATORS (RR, PW)
A330/A340 FLEET DSC-70-91 P 6/18
FCOM 19 AUG 10
(1) Engine Pressure Ratio (EPR)
(A) Actual EPR
The EPR needle and EPR digital indication are in green.
(B) EPR Command (EPR trend)
The green needle corresponds to the EPR demanded by the FADEC. In addition, next
to the EPR trend needle, a green triangle indicates the direction of EPR tendency.
These symbols are displayed when A/THR is active.
(C) Transient EPR
Symbolizes the difference between the EPR command and the actual EPR. It is only
displayed when A/THR is active.
(D) EPR TLA (blue circle)
EPR corresponding to the thrust lever position (predicted EPR).
(E) EPR MAX
The EPR MAX amber index is the EPR limit value corresponding to the full forward
position of the thrust levers.
(F) REV indication
The REV indication appears in amber, when at least one reverser cowl is unstowed or
unlocked. lt changes to green and is overbrightened when the reversers cowls are fully
deployed and reverse mode is selected. (If unlocked in flight, the indication first flashes
for 9 sand then remains steady).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
A330 CONTROLS AND INDICATORS (RR, PW)
A330/A340 FLEET DSC-70-91 P 7/18
FCOM 19 AUG 10
(G) AVAIL indication
This is displayed in green to indicate a successful engine start on ground.
It pulses in green to indicate a successful engine relight in flight.
It triggers, when the engine is at or above idle.
(2) Thrust limit mode
TOGA, FLX, CLB, MCT, limit mode selected by the thrust lever are displayed in blue.
If a derated takeoff has been selected by the crew, D04, D08, D12, D16, D20 or D24 will be
displayed.
DCLB1 or DCLB2 is displayed during the climb phase, if the crew has selected a derated
climb through the MCDU PERF CLB page.
(3) EPR rating limit
Is computed by the FADEC according to the thrust lever angle, and displayed in green. The
highest thrust rating mode and associated EPR limit value of the both engines is displayed.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
A330 CONTROLS AND INDICATORS (RR, PW)
A330/A340 FLEET DSC-70-91 P 8/18
FCOM 19 AUG 10
Note: On ground, with the engines running, the displayed ‐ EPR rating limit corresponds
to the TOGA thrust limit, regardless of the thrust lever position.
‐ On ground, with the engines running, and if FLEX mode (respectively DERATED
mode) is selected, FLEX EPR (respectively DERATED EPR) is displayed,
whatever the thrust lever position is, between IDLE and FLX / MCT.
(4) FLEX temperature
If a FLEX temperature has been entered through the MCDU and validated by the FADEC,
this temperature is displayed in blue.
(5) EGT indicator
(A) Actual EGT
‐ It is normally green.
‐ It becomes amber above :
• 700 °C during the ground start sequence, or
• 850 °C (except at takeoff).
‐ It becomes red, if EGT exceeds :
• 900 °C° for 20 s,
• 920 °C.
(B) EGT Max (amber)
It is 700 °C at engine ground start, then 850 °C. It is not available, when either takeoff
thrust is applied, or alpha floor is active, or reversers are selected.
(C) Max permissible EGT
The EGT redline is at 920 °C. A red arc is displayed above 920 °C to the end of the
scale.
(D) EGT exceedance
If 920 °C is exceeded, a red mark appears at the max value achieved. It will disappear
after a new start on ground.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
A330 CONTROLS AND INDICATORS (RR, PW)
A330/A340 FLEET DSC-70-91 P 9/18
FCOM 19 AUG 10
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