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HDG or TRK may be used to smooth the final approach course interception. When close to the final approach course, DIR TO function may be used.
If the green solid line does not intercept the PRE NAV engagement path (3), APP NAV will not engage.
XTK is related to the beam and the ND gives a comprehensive display.
Additionally, the VDEV becomes active and represents the vertical deviation, which may include a level segment. The VDEV/brick scale will only be displayed if ILS or LS pb is not pressed. If the ILS or LS pb is pressed by mistake, the V/DEV will flash in amber on the PFD.
 

  NORMAL OPERATIONS
NON PRECISION APPROACH
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL 

 
‐ For selected approach
• Select appropriate TRK on FCU in order to establish final course tracking with reference to raw data. When established on the final course, the selected track will compensate for drift.
The final approach course interception will be monitored through applicable raw data.
INTERMEDIATE APPROACH
Criteria: P7373, P7519, P7666, SA
4 Applicable to: MSN 1668-4078
INTERCEPTION OF FINAL APPROACH COURSE
It is essential to have a correct F-PLN in order to ensure proper final approach guidance. Indeed the NAV and APPR NAV modes are always guiding the aircraft along the F-PLN active leg and the managed vertical mode ensures VDEV =0, VDEV, being computed along the remaining F-PLN to destination. Hence, the crew will monitor the proper sequencing of the F-PLN, more specifically if
HDG mode is selected, by checking that the TO WPT, on upper right hand corner of ND, is the most probable one and meaningful.
 

  NORMAL OPERATIONS
NON PRECISION APPROACH
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL 

F-PLN sequence in approach
 
If ATC gives radar vectors for final approach course interception, the crew will use DIR TO FAF with RADIAL INBND facility. This creates an ILS alike beam which will be intercepted by NAV and APPR NAV modes. Additionally, the VDEV is realistic, XTK is related to the beam and the ND gives a comprehensive display.
F-PLN in approach
 
When cleared for final approach course interception, the pilot will either
‐ For managed approach
Press APPR p/b on FCU. On the FMA, APP NAV becomes active and FINAL becomes armed.
The VDEV or "brick" scale becomes active and represents the vertical deviation, which may include a level segment. The VDEV/brick scale will only be displayed if ILS or LS pb is not pressed. If the ILS or LS pb is pressed by mistake, the V/DEV will flash in amber on the PFD
‐ For selected approach
Select adequate TRK on FCU in order to establish final course tracking with reference to raw data. When established on the final course, the selected track will compensate for drift.
The final approach course interception will be monitored through applicable raw data.
　
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本文鏈接地址：A318/A319/A320/A321 機組訓練手冊 FCTM Flight Crew Training Manual(101)