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raw data confirmation as soon as possible.
In inertial navigation, the RNP -10 capability is maintained for 5.7 h, since the last radio update
(according to FAA Notice.12A), independently of the estimated accuracy displayed on the
MCDU.
P-RNAV/RNP-1 TERMINAL PROCEDURES
Applicable to: ALL
For terminal procedures requiring P-RNAV or RNP-1 capability, the flight crew can assume that the
radio navaid coverage supports the RNP-1 accuracy. Otherwise, the procedure may specify that
GPS equipment is required (refer to the published procedure chart).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
REQUIRED NAVIGATION PERFORMANCE (RNP)
A318/A319/A320/A321 FLEET PRO-SPO-51 P 8/10
FCOM 19 AUG 10
The minimum equipment required to fly a P-RNAV or RNP-1 procedure is :
‐ One RNAV system, which includes :
• One FMGC
• One MCDU
• One GPS receiver, or one VOR and one DME, for FM navigation updateSee
• One IRS, and
• One FD in NAV mode.
‐ Flight Plan data displayed on both NDs.
*GPS may be required for RNP-1 terminal procedures.
For terminal procedures with legs below the MSA, or with legs that may not have sufficient radar
coverage, two RNAV systems may be mandated by the procedure chart.
PROCEDURES
The terminal procedure (RNAV SID, RNAV STAR, RNAV TRANSITION, ...) must be loaded from
the FM navigation database and checked for reasonableness, by comparing the waypoints, tracks,
distances and altitude constraints (displayed on the F-PLN page), with the procedure chart.
The flight crew must not modify the procedure, that is loaded from the navigation database, unless
instructed to do so by the ATC (DIR TO, radar vectoring, insertion of waypoints loaded from the
navigation database).
If GPS is required for the P-RNAV/RNP-1 procedure :
Before starting the departure/approach procedure, check that GPS PRIMARY is available
(GPS PRIMARY displayed on the MCDU PROG page).
If GPS PRIMARY is not available before starting the procedure inform the ATC, and
request another departure/arrival procedure that does not require GPS.
If GPS PRIMARY is lost while flying the procedure inform the ATC of this loss of
capability, and follow ATC instructions.
If GPS is NOT required for the P-RNAV/RNP-1 procedure :
Check that GPS PRIMARY is available (GPS PRIMARY displayed on the MCDU PROG
page).
IF GPS PRIMARY is not available :
Crosscheck the FM position with the navaid raw data, before starting the procedure.
Check or enter RNP-1 in the REQUIRED field of the MCDU PROG page, and check that
HIGH accuracy is available. When completing the terminal procedure, revert to the default
value or enter the appropriate value on the MCDU PROG page.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
REQUIRED NAVIGATION PERFORMANCE (RNP)
A318/A319/A320/A321 FLEET PRO-SPO-51 P 9/10
FCOM 19 AUG 10
If one of the following messages appears,
while flying the procedure :
”NAV ACCUR DOWNGRAD” (on ‐ MCDU and ND) on both sides, or
‐ “FMS1/FMS2 POS DIFF” (on MCDU and ND), or
‐ ”NAV FM/GPS POS DISAGREE” (on ECAM)
Then :
Inform the ATC of the loss of P-RNAV/RNP-1 capability, and follow ATC instructions.
Note: If the “NAV ACCUR DOWNGRAD” message is displayed on one side only,
navigation may be continued using the other FMGC.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
REQUIRED NAVIGATION PERFORMANCE (RNP)
Intentionally left blank
A318/A319/A320/A321 FLEET PRO-SPO-51 P 10/10
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
OPERATIONS ON NARROW RUNWAYS
A318/A319/A320/A321 FLEET PRO-SPO-60 P 1/2
FCOM 19 AUG 10
GENERAL
Applicable to: ALL
A standard runway is 45 m wide. Operations on runways less than 45 m wide require authorization
from the Airworthiness Authorities.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
OPERATIONS ON NARROW RUNWAYS
Intentionally left blank
A318/A319/A320/A321 FLEET PRO-SPO-60 P 2/2
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
OPERATIONS AT QNH ABOVE HPA
A318/A319/A320/A321 FLEET PRO-SPO-65 P 1/4
FCOM 19 AUG 10
GENERAL
Applicable to:
, ,
MSN
Some airlines may occasionally experience high barometric correction settings above 1 050 hPa,
or 31.0 inHg on some airfields, due to polar anticyclonic air mass conditions occuring near the polar
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