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to false capture outside these limits.
Applicable to: ,
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 too 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.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A330/A340 FLEET PRO-NOR-SRP-01-70 P 9/38
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.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A330/A340 FLEET PRO-NOR-SRP-01-70 P 10/38
FCOM 19 AUG 10
Note: ICAO requires loc beam to ensure a normal capture within 10 nm and +/- 35 ° of the course
centerline. Some current ILS systems just meet the requirement and are subject to false
capture outside these limits.
SWITCHING FROM NON ILS TO ILS APPROACH
Applicable to: ALL
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.
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.
Consequently, he should :
• Manually TUNE in the ILS on the RAD NAV page : CHECK that the CHECK
APPR SELECTION message comes up.
• Press the ILS pushbutton and select ROSE ILS on the EIS CONTROL
panel.
• Use HDG, V/S or TRK, FPA modes to fly the ILS.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
NORMAL PROCEDURES
SYSTEMS RELATED PROCEDURES - FMS
A330/A340 FLEET PRO-NOR-SRP-01-70 P 11/38
FCOM 19 AUG 10
TASK SHARING DURING CAT I, CAT II AND CAT III APPROACH AND LANDING
Applicable to: ALL
In the PSL LIM 22 provides all limitations regarding CAT I, CAT II and CAT III approaches and
landings. This includes precautions to be taken when performing autoland on CAT I ILS beam with
good visibility.
Anytime a precision approach is performed the PNF must announce that a flight parameter is being
exceeded, if :
‐ During glide beam capture
• Pitch attitude goes below 0 °, or above 10 ° (nose up).
• Vertical speed exceeds plus 500 ft/min or minus 1 250 ft/min.
‐ During final approach
• Speed goes below speed target minus 5 kt or above speed target plus 10 kt (announce
“SPEED”)
• Pitch attitude goes below 0 °, or above 10 ° (announce “PITCH”)
• Bank angle becomes greater than 7 ° (announce “BANK”)
• Descent rate becomes greater than 1 000 ft/min (announce “SINK RATE”)
• There is too much LOC or GLIDE deviation (announce “LOCALIZER” or “GLIDE”).
If the flight crew suspects that autopilot guidance is not effective, they should :
‐ Use the instinctive disconnect pushbutton to disconnect the autopilot, or
‐ Perform an automatic go-around.
The flight crew may perform a CAT II/CAT III approach, if :
‐ The FMA displays the correct category
‐ The required systems and functions are operative
‐ The airport is approved for either a CAT II or CAT III operations
‐ They are qualified to perform the specific approach.
CAT III APPROACH
AUTO CALL OUT RA is mandatory.
Autothrust in SPEED MODE is mandatory.
Note: AUTO CALL OUT is not mandatory for CAT 2 approach : The PNF may perform this
function.
A330/A340 FLIGHT CREW
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 10(7)
