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DESCENT MONITORING
Applicable to:
,
,
MSN,,,,
PF MCDU..................................................................................................................PROG/PERF DES
PF MCDU should be set to PROG or PERF DES page:
PROG page in order to get VDEV or RQD DIST TO LAND/DI ‐ RECT DIST TO DEST information
‐ PERF DES in order to get predictions down to any inserted altitude in DES/OP DES modes and
EXP mode �� .
PNF MCDU.................................................................................................................................F-PLN
DESCENT............................................................................................................................ MONITOR
Refer to PRO-NOR-SRP-01-60-A DESCENT MONITORING - DES MODE ENGAGED
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
STANDARD OPERATING PROCEDURES - DESCENT
A318/A319/A320/A321 FLEET PRO-NOR-SOP-17 P 2/6
FCOM 19 AUG 10
‐ When flying in NAV mode, use DES mode.
The aircraft descends along the descent flight path: the PFD and PROG page display VDEV, and
so it can be monitored. All constraints of the flight plan are taken into account for the guidance.
‐ When the aircraft is flying in HDG or TRK mode, and thus out of the lateral F-PLN, DES mode is
not available.
The NDs show a level-off symbol along the flight path. Its position is based on the current active
modes .AP/FD and A/THR
The flight crew can use this symbol to monitor the descent.
MCDU predictions assume a return to the lateral F-PLN and descent flight path.
Note that whenever the lateral mode is changed from NAV to HDG/TRK the vertical mode reverts
to V/S at the value pertaining at the time of the mode change.
‐ From time to time during stabilized descent, the flight crew may select FPA to check that the
remaining distance to destination is approximately the altitude change required divided by the FPA
in degrees.
FPA (°) = ΔFL/DIST (NM)
DESCENT MONITORING
Applicable to:
PF MCDU..................................................................................................................PROG/PERF DES
PF MCDU should be set to PROG or PERF DES page:
PROG page in order ‐ to get VDEV or RQD DIST TO LAND/DIRECT DIST TO DEST information
‐ PERF DES in order to get predictions down to any inserted altitude in DES/OP DES modes and
EXP mode �� .
PNF MCDU.................................................................................................................................F-PLN
DESCENT............................................................................................................................ MONITOR
Refer to PRO-NOR-SRP-01-60-A DESCENT MONITORING - DES MODE ENGAGED
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
STANDARD OPERATING PROCEDURES - DESCENT
A318/A319/A320/A321 FLEET PRO-NOR-SOP-17 P 3/6
FCOM 19 AUG 10
‐ When flying in NAV mode, use DES mode.
The aircraft descends along the descent flight path: the PFD and PROG page display VDEV, and
so it can be monitored. All constraints of the flight plan are taken into account for the guidance.
‐ When the aircraft is flying in HDG or TRK mode, and thus out of the lateral F-PLN, DES mode is
not available.
The NDs show a level-off symbol along the flight path. Its position is based on the current active
modes .AP/FD and A/THR
The flight crew can use this symbol to monitor the descent.
MCDU predictions assume a return to the lateral F-PLN and descent flight path.
Note that whenever the lateral mode is changed from NAV to HDG/TRK the vertical mode reverts
to V/S at the value pertaining at the time of the mode change.
‐ From time to time during stabilized descent, the flight crew may select FPA to check that the
remaining distance to destination is approximately the altitude change required divided by the FPA
in degrees.
FPA (°) = ΔFL/DIST (NM)
DESCENT ADJUSTMENT
Applicable to: ALL
To increase the rate of descent:
‐ Increase descent speed (by use of selected speed) if comfort and ATC permit. It is economically
better (Time/Fuel) than the following procedures.
‐ Maintain high speed as long as possible. (SPD LIM may be suspended, subject to ATC
clearance).
‐ If the aircraft is high and at high speed, it is more efficient to keep the high speed to ALT* knob
and decelerate, rather than to mix descent and deceleration.
‐ If the aircraft goes below the desired profile, use SPEED and the V/S knob mode to adjust the rate
of descent.
Note: EXPEDITE DESCENT.
If a high rate of descent is required, push the EXPED pushbutton �� on the FCU. The
　
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