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inserted, before using the FUEL PLANNING function.
The flight crew must check the FMS-computed BLOCK fuel value against the actual block fuel
required for the flight. Fuel planning must not be based only on FMS predictions
If the computed BLOCK fuel corresponds to the actual block fuel required for the
flight :
PRESS the BLOCK CONFIRM prompt [ 3R ].
The FMS computes all the predictions, based on the computed BLOCK fuel.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A330/A340 FLEET PRO-NOR-SRP-01-10 P 28/36
FCOM 19 AUG 10
If the computed BLOCK fuel does NOT correspond to the actual block fuel required
for the flight :
ENTER the desired BLOCK fuel in the [ 2R ] field.
The FMS computes the predictions, based on the entered BLOCK fuel, and estimates the
EXTRA fuel value.
When the BLOCK fuel has been entered :
CHECK/MODIFY the FINAL/TIME [ 5L ] values.
If the flight crew modifies the FINAL or TIME values, the EXTRA fuel value will be modified
accordingly.
Note: The ALTN value computed by the FMS ‐ may differ from the value retained on
the operational flight plan, since some computation hypothesis (such as, for
example, the route, wind profile, CRZ FL, CI) may differ.
‐ The system computes part of the characteristics speeds displayed on the PFD
(VLS, F, S, Green Dot) from the ZFWCG and ZFW entered by the flight crew on
the MCDU (used by the fuel computer FCMC to compute the aircraft GW and
CG). Therefore, the flight crew must carefully check these data.
PRINT the PREFLIGHT REPORT, if necessary
When the final loadsheet values (ZFWCG/ZFW/BLOCK) have been entered, and the FUEL
PLANNING is completed, the flight crew may print the pre-flight report, which provides a
copy of the F-PLN with the associated FMS predictions.
Applicable to: ALL
TAKEOFF WITH NO GROSS WEIGHT ENTRY - GROSS WEIGHT LOST BY THE FMGS
If a GW is not entered, or if the FMGS loses the value due to a power interruption, managed speed
will be only available for the takeoff phase and, then, only if V2 has been inserted.
After engine start, the MCDU displays “INITIALIZE WEIGHTS”.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A330/A340 FLEET PRO-NOR-SRP-01-10 P 29/36
FCOM 19 AUG 10
If the pilot does not respond, the following occurs :
At takeoff, the speed reference system (SRS) mode remains active ‐ until the aircraft reaches the
acceleration altitude (ACC ALT), or engages another vertical mode .
‐ When the aircraft leaves the SRS mode, the target speed becomes the current speed and is no
longer managed.
To regain a normal speed target, the pilot must :
SELECT the appropriate climb speed on the FCU and PULL the knob.
INSERT GW on the FUEL PRED page.
PUSH the SPD pushbutton on the FCU to get managed speed target.
Applicable to: ALL
INSERTING GW AND CG AFTER ENGINE START
The flight crew must enter the ZFWCG and ZFW on the INIT B page before engine start. After
engine start, the crew can enter GW and CG values, on the FUEL PRED page.
PRESS the FUEL PRED key.
INSERT GW. This allows performance computation.
MODIFY CG, if necessary. The CG is defaulted to 25 %.
The FCMC (or the Flight Envelope part of the FMGEC as backup) continuously updates and sends
gross weight and center of gravity in flight.
Applicable to:
TAKEOFF DATA INSERTION
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A330/A340 FLEET PRO-NOR-SRP-01-10 P 30/36
FCOM 19 AUG 10
PROCEDURE
PRESS the PERF key on MCDU
WRITE successively and ENTER V1, VR, V2 and takeoff shift.
WRITE FLX TO TEMP.
CHECK/MODIFY the TRANS ALT (transition altitude) See *
CHECK/MODIFY the THR RED ALT (thrust reduction altitude) See *
CHECK/MODIFY the ACC ALT (acceleration altitude) See *
CHECK/MODIFY the ENG OUT ACC (engine out acceleration altitude) See *
CHECK V1, V2 on PFD See **
* Altitudes less than 400 ft above airfield elevation cannot be selected
** If the PFD does not display V2 at the top of its speed scale, check that at least one FD is ON
ENTERING A FLEX TEMPERATURE
WRITE the desired flex temperature in the scratchpad and ENTER using the [4R] key.
The thrust limit mode and the N1 rating limit are displayed on the ECAM E/WD.
Applicable to: ,
TAKEOFF DATA INSERTION
PROCEDURE
PRESS the PERF key on MCDU
WRITE successively and ENTER V1, VR, V2 and takeoff shift.
WRITE FLX TO DRT TO.
A330/A340 FLIGHT CREW
OPERATING MANUAL
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 9(177)
