A330/A340 6.50.1 Non-precision Approach
FCTM REV 1 (6 JUN 05)
PREFACE
Non-precision approaches are defined as:
. VOR . NDB . LOC
. LOC-BC . RNAV . GPS
An RNAV approach is an instrument approach procedure that relies on aircraft area navigation equipment (FMS) for navigational guidance. The FMS on Airbus aircraft is certified RNAV equipment that provides lateral and vertical guidance referenced from an FMS position. The FMS uses multiple sensors for position updating including GPS, DME-DME, VOR-DME, LOC-GPS and IRS.
A GPS approach is an RNAV approach requiring GPS position update. Airbus aircraft using FMS as the primary means of navigational guidance have been approved to fly GPS approaches provided an RNP of 0.3 or smaller is used.
Non-ILS approaches are flown using FINAL APP or FPA pitch modes and LOC, FINAL APP or TRACK lateral modes.
6.50.2
A330/A340 Holding And Approach REV 1 (6 JUN 05)
FCTM Non-precision Approach
FINAL APPROACH STRATEGY General
The type of approach and the navigation accuracy will determine the approach guidance modes. Where possible, it is preferable to fly a managed approach (FINAL APP mode). Whether managed or selected guidance is used, use of the AP is recommended.
Requirements For Using FINAL APP Mode
FCOM 3.03.19 refers.
Low Temperature Altimetry
A managed vertical profile may not be flown if the airport temperature is below -15°C or, if published, the Baro-VNAV authorised temperature on the approach chart. If the temperature is below the approved limit, the approach may still be flown using selected vertical guidance (NAV/FPA) and the corrected procedural altitudes (Volume 2 Part 2 refers). In this case, the approach is flown to an MDA.
VOR, VORDME, NDB And NDBDME Approach
VOR and NDB approaches are flown using one of the following three strategies:
.
Lateral and vertical guidance selected by the crew using TRK-FPA modes
.
Lateral guidance managed by the FM and vertical guidance selected by the crew using NAV-FPA modes
.
Lateral and vertical guidance managed by the FM in FINAL APP mode
LOC And LOC BACK COURSE Approach
LOC approaches are flown using the LOC signal for lateral navigation and FPA for vertical guidance.
LOC-B/C approaches are flown using the LOC-B/C signal (LOC signal from the opposite runway) for lateral navigation and FPA for vertical guidance.
The LOC pb will arm the LOC or LOC B/C AP/FD mode as appropriate. The LS pb on the EFIS CTL panel will display LOC or LOC B/C deviation on the PFD in the correct sense. The PFDs VDEV symbol should be disregarded since it may be incorrect if the Missed Approach Point is located before the runway threshold
If the LOC B/C approach is stored in the FMS database and inserted into the F-PLN, the ILS frequency and associated back course are automatically tuned and displayed in the RADNAV page. The CRS digits will be preceded by a “B” to indicate back course.
A330/A340 6.50.3 Non-precision Approach
FCTM REV 1 (6 JUN 05)
If the LOC B/C is not stored in the FMS database, enter the ILS frequency and the intended final approach course preceded by a “B” in the RADNAV page. “B/C” will be displayed in magenta near the localiser deviation scale on both the PFD and ND. This will provide deviation indications on the PFD and ND in the correct sense, and proper directional guidance by the FG computers. However, do not select the LS pb on ISIS, since the ISIS displays B/C localiser deviation in the reverse sense.
For example:
6.50.4
A330/A340 Holding And Approach REV 1 (6 JUN 05)
FCTM Non-precision Approach
RNAV and GPS Approach
The following two strategies are available for performing RNAV and GPS approaches:
.
Lateral and vertical guidance managed by the FM in FINAL APP mode. This is the recommended strategy. This strategy shall be used for approach with minima defined as a decision altitude (DA).
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