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? The final approach is not modified by the crew.
If one engine is inoperative, it is not permitted to use the autopilot to perform NPAs in the following modes: FINAL APP, NAV V/S, NAV/FPA. Only FD use is permitted (Refer to FCOM/LIM-22-10 USE OF NAV AND FINAL APP MODES FOR NON-PRECISION APPROACH). In others words, if the use of the autopilot is preferred, its use will be limited to TRK/FPA or HDG/VS modes.
 

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

INITIAL APPROACH
Criteria: SA
1 Applicable to: MSN 0045-0499
NAVIGATION ACCURACY
The navigation accuracy check is most essential since it determines
? The AP/FD guidance mode to be used
? The ND display mode to be used
? Which raw data which are to be used.
NAVIGATION ACCURACY Approach guidance ND AP/FD mode
  PF PNF 
NAV ACCUR HIGH Managed(3)
or Selected ARC or ROSE NAV (1)
with navaid raw data NAV-FPA or
APP-NAV/FINAL (3)
NAV ACCUR LOW and NAV
ACCURACY checK ≤1 nm   
NAV ACCUR LOW and NAV
ACCURACY check > 1 nm Selected ROSE VOR (2) ARC or ROSE NAV or ROSE VOR (2) with navaid raw data TRK-FPA
GPS PRIMARY LOST and aircraft flying
within unreliable radio navaid area    

(1) For VOR approach, one pilot may select ROSE VOR
(2) For LOC approach, select ROSE ILS
(3) The managed vertical guidance can be used provided the above limitations are observed.
Should a NAV ACCY DNGRADED message is displayed before a managed non-precision approach, the crew should proceed as follow:
? Cross-check the navigation accuracy with raw data
? If positive, continue managed approach. See (*)
? If negative, revert to selected approach with raw data.
(*) If HIGH accuracy is lost on one FMGC, the approach can be continued with the AP/FD associated to the other FMGC.
FLYING REFERENCE
The "bird" is to be used as the flying reference APPROACH PHASE ACTIVATION
The stabilized approach technique is recommended. The crew will set VAPP as a speed constraint at FAF in order to get a meaningful deceleration pseudo waypoint.
 

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

INITIAL APPROACH
Criteria: P5168, P6054, P6183, SA
2 Applicable to: MSN 1668-4078
NAVIGATION ACCURACY
The navigation accuracy check is most essential since it determines
? The AP/FD guidance mode to be used
? The ND display mode to be used
? Which raw data which are to be used.
NAVIGATION ACCURACY Approach guidance ND AP/FD mode
  PF PNF 
　
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