STL 945.7136/97 8.11
A319/A320/A321 engine controls – thrust control operations
Limited thrust parameters (N1 for CFM56, EPR for
V2500) computed by FADEC.
Selection of thrust limit mode obtained directly by throttle
position :
Six positions defined by detents or stops.
Thrust lever only to be moved manually (no
servomotor) : lever position not necessarily
representing engine thrust delivered
According to the thrust lever position the FADEC
computes :
- Thrust rating limit (no TRP)
- N1 (EPR) when in manual mode
- N1 (EPR) which can be achieved in
Go Around (GA)
Max Take-Off (TO)
Max continuous (MCT)
Flex. Take-Off (FLX) Max Climb (CL)
ATS max
operating range
Idle
Reserve idle
Max reserve
Reserve
Mode selection Thrust
Thrust limit T.O/GA
Thrust limit FLX TO/Max Cont
Thrust limit max climb
Command
f (TLA)
Max reserve
Max continuous
Climb
Cruise
Max take-off
Idle
STL 945.7136/97
A319/A320/A321 engine controls indications (CFM56) on ECAM upper DU
Appears when both
engines at IDLE (*)
Transient N1 during ATS operation
corresponding to FMGC demand to
go to N1 target
8.12
Symbol corresponding to
the thrust lever position
N1 actual
Exhaust gas
temperature
* Basic on A319/A321
Max N 1
Max permissibleN1
Flex temperature
(entered through MCDU)
N 1 rating limit
FOB : 18000 KG
S
F
3
FLX
SEAT BELTS
NO SMOKING
IDLE
Thrust limit mode
STL 945.7136/97
A319/A320/A321 engine controls indications (IAE 2500) on ECAM upper DU
Appears when both
engines at IDLE (*) Transient N1 during ATS operation
corresponding to FMGC demand to
go to EPR target
8.13
Symbol corresponding to
the thrust lever position
Actual N1
Exhaust gas
temperature
* Basic on A319/A321
Max EPR
Thrust limit mode
Flex temperature
(entered through MCDU)
FOB : 13000 KG E PR rating limit
SEAT BELTS F
NO SMOKING
Actual EPR
S FLAP F
1530 1 5 0 0
Max permissible N1
STL 945.7136/97
A319/A320/A321 EIS independent : after “clear” action
8.14
Start configuration
After start configuration
Oil quantity
Oil pressure
Oil temperature
Start valve
position
Engine bleed
pressure
Selected
ignition
TAT + 19 °C
SAT + 18 °C
23 H 56 G.W. 60300 kg
Nacelle temperature
TAT + 19 °C
SAT + 18 °C 23 H 56
G.W.
°
°
°
Engine vibration
STL 945.7136/97
A319/A320/A321 engine controls indications on PFD : FMA
8.15
The following indications may appear on the PFD Flight
Mode Annunciator (FMA), in upper left corner :
ASYM : Only one thrust lever is set to CLB or
MCT position,
CLB : Flashing when aircraft above thrust
reduction altitude and thrust levers
not in CLB notch,
MCT : Flashing in case of engine failure if the
non-affected thrust lever is not set at
MCT,
A-FLOOR : α -floor condition encountered,
TOGA LK : When leaving α -floor condition and
thrust still at MTO
FINAL APP NA
ASYM
STL 945.7136/97
A319/A320/A321 engine controls - thrust reverse
8.17
Reverser deployment selection by positioning thrust
lever into reverse area and by acting on independent
locking levers.
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