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approach, unless radio NAVAID raw data is available and indicates correct navigation to
continue the approach by using the AP/FD associated to the non-affected FMGC side.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
STANDARD OPERATING PROCEDURES - NON PRECISION APPROACH
A318/A319/A320/A321 FLEET PRO-NOR-SOP-19 P 14/32
FCOM 19 AUG 10
�� For RNAV approach WITHOUT GPS PRIMARY
Before starting the approach, check the FM position accuracy with radio NAVAID raw
data.
Check, in addition, that HIGH accuracy appears on the MCDU with the specified RNP
value.
If HIGH accuracy is lost on one FMGC, the approach can be continued with the AP/FD
associated to the other FMGC.
If HIGH accuracy is lost on both FMGCs, discontinue the approach.
If the FMS1/FMS2 POS DIFF message is triggered during the approach, discontinue the
approach, unless radio NAVAID raw data is available and indicates correct navigation to
continue the approach by using the AP/FD associated to the non-affected FMGC side.
Applicable to:
, ,
MSN
GUIDANCE FOR RNAV APPROACHES
Two different approach strategies are available to perform RNAV approaches:
1. Lateral guidance, managed by the FM, and vertical guidance selected by the crew: NAV-FPA
(or NAV-V/S) modes.
This strategy applies, when LNAV ONLY (Lateral Navigation only) RNAV approach is intended.
2. Lateral and vertical guidance, managed by the FM: FINAL APP mode.
This strategy applies, when LNAV/VNAV (Lateral and Vertical Navigation) RNAV approach is
intended.
For straight in approaches, the recommended flying reference is FPV, which should be selected
during the initial approach.
Before starting a RNAV (GPS) approach, two navigation systems must be operative: 2 FMS and
2 GPS.
RNAV approach can be performed in NAV-FPA (or NAV-V/S) modes provided:
The approach stored in the navigation database has been produced ‐ by approved suppliers
compliant with ED76/DO200A requirements, or has been validated and is approved by the
operator.
‐ Before starting the approach, the crew must check the lateral FM F-PLN against the published
approach chart using MCDU and ND.
The final approach is laterally and vertically monitored, using the appropriate ‐ data: the distance
to the runway or to the MAP versus altitude is the primary means of vertical navigation, the
deviation on the PFD may be unreliable.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
STANDARD OPERATING PROCEDURES - NON PRECISION APPROACH
A318/A319/A320/A321 FLEET PRO-NOR-SOP-19 P 15/32
FCOM 19 AUG 10
RNAV approach can be performed in FINAL APP mode provided:
‐ The approach stored in the navigation database has been produced by approved suppliers
compliant with ED76/DO200A requirements, and the vertical flight path has been validated
by the operator, or, the lateral and vertical flight path has been validated and approved by the
operator.
Note: RNP SAAAR approaches coded in the navigation database must be fully validated by
the operator.
If no minimum OAT is published on the approach chart, the effect of low OAT on obstacle
clearance needs to be evaluated.
‐ The final approach (FAF to runway or MAP), as extracted from the navigation database and
inserted in the primary F-PLN including altitude constraints, is not revised by the crew.
‐ Before starting the approach, the crew must check the lateral and the vertical FM F-PLN against
the published approach chart, using the MCDU and ND.
‐ The approach trajectory is laterally and vertically intercepted, before the FAF, or equivalent
waypoint in the FM F-PLN, so that the aircraft is correctly established on the final approach
course before starting the descent.
‐ The final approach is laterally and vertically monitored, using the VDEV and appropriate raw
data (distance to the runway, altitude, FPV).
Note: For additional information on recommended flight crew procedures, and on navigation
database flight path validation, Refer to 99 Duref Cible FCOMand the FMGS Pilot's
guide (Refer to PRO-NOR-SRP-01-70 INITIAL APPROACH).
�� For RNAV approach WITH GPS PRIMARY
Unless an instrument approach procedure, not requiring GPS PRIMARY, is available at
destination or destination alternate (and at required takeoff alternate, and en route alternate),
the GPS PRIMARY availability must be verified before flight.
RAIM is available worldwide, if 24 or more GPS satellites are operative. If the number of GPS
satellites is 23 or less, check RAIM availability using the approved version of the Honeywell
ground-based prediction software.
If the GPS PRIMARY availability cannot be verified before flight, RAIM availability can be
　
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