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DIVERSION TO THE ALTERNATE AIRPORT
Applicable to:
,
,
MSN,,,,
The primary F-PLN includes an alternate flight plan from destination to the preferred alternate airport.
All fuel prediction and management (EXTRA fuel) take the alternate flight plan into consideration.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - HOW TO EXECUTE A DIVERSION
A318/A319/A320/A321 FLEET DSC-22_20-60-40 P 7/12
FCOM 19 AUG 10
If the crew decides to divert at the end of the cruise, or beyond the last ETP, or in the descent or
go-around phases, this will most probably be to the alternate airport.
When the crew decides to divert :
SELECT a lateral revision at suitable waypoint
SELECT ENABLE ALTN prompt
CHECK the temporary flight plan and INSERT
SELECT DIR TO required waypoint
Note: In most cases, the LAT REV shall be selected ‐ at the TO WPT. This will facilitate the
subsequent selection of the DIR TO waypoint.
The ALTN flight plan shall be finalized, whenever the landing ‐ runway is known by the
crew (before approach briefing).
In most cases, this will ensure that the most probable flight plan is displayed on the
MCDU once ENABLE ALTN is selected.
USING THE SECONDARY FLIGHT PLAN FUNCTION
Applicable to:
Use the SEC F-PLN function if a secondary flight plan for diversion has been prepared :
WHILE THE AIRCRAFT IS ON THE GROUND,
you have prepared the lateral path you would expect to use in case of an early in flight turn back
(major failure after takeoff or during initial climbout), or the lateral path you would expect to use to
land at a nearby diversion airport (weather at origin airport requires a takeoff alternate).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - HOW TO EXECUTE A DIVERSION
A318/A319/A320/A321 FLEET DSC-22_20-60-40 P 8/12
FCOM 19 AUG 10
SELECT the “SEC F-PLN” key on the MCDU.
DEPRESS the “COPY ACTIVE” key.
SELECT “LAT REV” at a waypoint with a suitable SID.
ENTER the ident of the diversion airport as the new destination.
ENTER the expected approach and route.
DEPRESS the PERF prompt on SEC INDEX page.
SELECT the PERF APP page of the secondary F-PLN.
ENTER the QNH and wind.
SELECT the landing configuration.
ONCE THE AIRCRAFT IS IN THE CRUISE PHASE,
consider the adequate diversion airports as the aircraft proceeds along the route of the active flight
plan : use the “EFIS AIRPORT” feature of the navigation display for this.
Enter a diversion airfield as the destination for the secondary flight plan and adjust the routing
(changing it as necessary as cruise phase progresses).
SELECT the “SEC F-PLN” function key on MCDU.
PRESS the “COPY ACTIVE” key.
SELECT “AIRPORT” on the EFIS control panel.
Choose an adequate diversion airport and diversion initial waypoint.
SELECT “LAT REV” at the chosen waypoint.
ENTER the new destination.
MODIFY/COMPLETE the lateral flight plan.
For both of these cases, initiate the diversion as follows :
SELECT the “SEC F-PLN” key on MCDU.
DEPRESS the “ACTIVE SEC” key.
USE the DIR TO function to go to the waypoint of the new active flight plan.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - HOW TO EXECUTE A DIVERSION
A318/A319/A320/A321 FLEET DSC-22_20-60-40 P 9/12
FCOM 19 AUG 10
USING THE SECONDARY FLIGHT PLAN FUNCTION
Applicable to:
,
,
MSN,,
4538,,
Use the SEC F-PLN function if a secondary flight plan for diversion has been prepared :
WHILE THE AIRCRAFT IS ON THE GROUND,
you have prepared the lateral path you would expect to use in case of an early in flight turn back
(major failure after takeoff or during initial climbout), or the lateral path you would expect to use to
land at a nearby diversion airport (weather at origin airport requires a takeoff alternate).
SELECT the “SEC F-PLN” key on the MCDU.
DEPRESS the “COPY ACTIVE” key.
SELECT “LAT REV” at a waypoint with a suitable SID.
ENTER the ident of the diversion airport as the new destination.
ENTER the expected approach and route.
DEPRESS the PERF prompt on SEC INDEX page.
SELECT the PERF APP page of the secondary F-PLN.
ENTER the QNH and wind.
SELECT the landing configuration.
TO PREPARE A DIVERSION, IN CRUISE PHASE :
The flight crew should consider the adequate diversion airports as the aircraft proceeds along
　
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