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data.
Manual selection of a required accuracy on the MCDU is optional.
If manual entry of a required is desired, enter 5 nm, or use the ‐ radial equivalent to 5 nm XTK
accuracy that is 6.1 nm.
When leaving RNP-5 airspace, or when entering the terminal area, revert to the default required
accuracy or enter the appropriate value on the MCDU.
‐ If one of the following MCDU or ECAM messages is displayed, check the navigation accuracy
with navaid raw data or GPS MONITOR page (if GPS installed) :
• NAV ACCUR DOWNGRAD
• FMS1/FMS2 POS DIFF
• CHECK IRS 1(2)(3)/FM POSITION
• ECAM : FM/GPS POS DISAGREE (if GPS installed)
• ECAM : FM/IR POS DISAGREE
‐ If accuracy check confirms that RNP-5 capability is lost or if both FMGC are failed : inform ATC
and revert to conventional navigation.
‐ If accuracy check confirms that only one FMGC position is incorrect, resume navigation with the
other FMGC.
In inertial navigation, the BRNAV capability is kept during 2 hours independently of the estimated
accuracy displayed on MCDU.
RNP-10 IN OCEANIC OR REMOTE AREAS
Applicable to: ALL
In this kind of airspace the aircraft is expected to fly for a long period of time outside radio navaid
coverage.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
RNP
A330/A340 FLEET PRO-SPO-51 P 5/8
FCOM 19 AUG 10
For aircraft without GPS the flight time outside radio navaid coverage is limited. According to FAA
Notice 8400.12A this limitation is :
‐ 6.2 h since IRS ground alignment, or
‐ 5.7 h since last FM radio update.
There is no limitation for aircraft fitted with GPS.
Minimum required equipment to enter a RNP-10 airspace is :
‐ Two long range navigation systems, which means :
• Two FMGC (or 1 FMGC + 1 BACK UP NAV)
• Two MCDU
• One GPS if required by flight time outside radio navaid coverage
• Two IRS
Refer also to Regional Supplementary Procedures of ICAO Doc 7030 for specific requirements in a
particular airspace.
PROCEDURES
The manual selection of a required accuracy on MCDU is optional.
If manual entry of a required accuracy is desired, enter 10 nm ‐ or use the radial equivalent to
10 nm XTK accuracy that is 12.2 nm.
When leaving RNP-10 airspace, revert to the default required accuracy or enter the appropriate
value.
‐ If one of the following MCDU or ECAM messages is displayed, check navigation with POSITION
MONITOR page, IRS MONITOR pages and GPS MONITOR page (if GPS installed),
• FMS1/FMS2 POS DIFF
• CHECK IRS 1(2)(3)/FM POSITION
• ECAM : FM/GPS POS DISAGREE (if GPS installed)
• ECAM : FM/IR POS DISAGREE
‐ Use the AP, with the navigation system checked correct.
‐ If unable to determine which system is correct, inform the ATC and look for navaid raw data
confirmation as soon as possible.
In inertial navigation, RNP-10 capability is maintained for 5.7 hours, since the last radio update
(according to FAA Notice 8400.12A), independently of the estimated accuracy displayed on
MCDU.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
RNP
A330/A340 FLEET PRO-SPO-51 P 6/8
FCOM 19 AUG 10
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 RNP-1accuracy. Otherwise, the procedure may specify that GPS
equipment is required (refer to the published procedure chart).
The minimum equipment required to fly a P-RNAV or RNP-1procedure is :
‐ One RNAV system that includes :
• One FMGC
• One MCDU
• One GPS receiver, or one VOR and one DME, for FM navigation update See *
• 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 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 :
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 11(51)
