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Pressing the APPR pushbutton arms LOC and G/S.
The RA signal is not valid above 8 200 ft AGL (TRT), or 5 000 ft AGL (Collins).
�� If the aircraft is cleared for an ILS approach, when it is higher than 8 000 ft AGL or
5 000 ft AGL (Collins), proceed as follows :
PRESS the APPR pushbutton on the FCU.
�� When aligned on the localizer, check LOC and G/S engagement :
CAT 1 is displayed on the FMA. (Radio altimeters not yet valid).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A318/A319/A320/A321 FLEET PRO-NOR-SRP-01-70 P 9/42
FCOM 19 AUG 10
Check that the FMA displays the correct capability for the intended approach, when the aircraft
is below 5 000 ft AGL.
Applicable to: ALL
GLIDESLOPE INTERCEPTION FROM ABOVE
If the aircraft is above the glideslope, the system will not capture the G/S automatically.
The pilot must bring the aircraft onto the glideslope beam, and select an appropriate V/S to
intercept it. Refer to STLO-SOP-18-A GENERAL.
Applicable to: ALL
DATA LOCK
When the aircraft reaches 700 ft RA with APPR mode (LOC and G/S) armed or engaged, the ILS
freq and course are frozen in the receiver.
This function (ILS tune inhibit) is available, when at least one AP/FD is engaged. Any attempt to
change the ILS frequency or CRS, via the MCDU or RMP, does not affect the receiver.
If the speed is managed, the system does not accept any modifications the pilot may enter on the
PERF APPR page (surface wind, selected landing configuration, or VAPP) for speed guidance
purposes below this altitude.
When the aircraft reaches 400 ft RA, LAND mode engages. The flight crew can only disengage
this mode by engaging the GO AROUND mode.
Applicable to: ALL
USE OF RMPS FOR ILS/DME
If both FMGCs fail, the flight crew can use the RMPs (Radio Management Panels 1 and 2) for
back up tuning. Either RMP controls ILS. Prior to select an ILS frequency on one of the RMPs, the
flight crew has to select “NAV” button from RMP1 and RMP2.
If the ILS has a DME, the PFD will not display the DME distance. In this situation, the flight crew
will fly without DME information. If necessary, increase the Decision height (DH) accordingly.
Applicable to: ALL
LOCALIZER (LOC) BEAM CAPTURE
The flight crew must always monitor the capture of a LOC beam. During this evolution, the PFD
and ND must indicate that associated deviation indications move toward the centre of the scale.
To avoid performing a false capture, the flight crew must be careful not to arm the LOC to early.
The following graph shows the angle of interception versus distance to the runway threshold that
ensures that the aircraft will not overshoot the axis by more than one and a half dot.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A318/A319/A320/A321 FLEET PRO-NOR-SRP-01-70 P 10/42
FCOM 19 AUG 10
The capture begins when the deviation is two dots or less. It is programmed to line the aircraft up
on the beam with a single overshoot, even if the intercept angle is large.
Note: ICAO requires loc beam to ensure a normal capture within 10 nm and plus or minus 35 °
from the course centerline. Some ILS systems just meet the requirement and are subject
to false capture outside these limits.
SWITCHING FROM NON ILS TO ILS APPROACH
Applicable to:
If an ILS approach is possible when a non ILS was previously scheduled, use one of the following
procedures :
USE OF SECOND FLIGHT PLAN
Use a secondary flight plan to prepare the alternate ILS approach, time permitting.
COPY the ACTIVE flight plan.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A318/A319/A320/A321 FLEET PRO-NOR-SRP-01-70 P 11/42
FCOM 19 AUG 10
REVISE the ARRIVAL : insert the ILS approach and the applicable STAR/VIA.
On the RAD NAV page, TUNE in the ILS manually.
REVISE the PERF APPR page.
CHANGE OF THE CLEARANCE
ATC changes the clearance from the non-ILS to the ILS approach.
�� If a secondary flight plan has been prepared :
ACTIVATE the SEC F-PLN and adjust.
Follow subsequent standard procedures.
�� If a secondary flight plan has not been prepared :
REVISE the ARRIVAL on the primary F-PLN, inserting the ILS approach.
REVISE the PERF APPR page.
Follow subsequent standard procedures.
CAUTION If the pilot decides to fly the ILS approach without revising the arrival of the
primary flight plan (a non ILS approach is in the F-PLN), LOC and G/S modes
will not be available when he presses the APPR pushbutton.
　
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