Thales FMGS, Pilot'S Manual

Page: 341 / 703

MULTIPHASE
LATERAL F-PLN management
25
AIRBUS A318/319/320/321
© THALES AVIONICS S.A.
J43126AA 00
Incorrect lateral trajectory
Lateral anomaly (shift) may occur in case of two consecutive legs with
altitude termination.
This involves SID/EOSID and Missed Approach procedures that include
a "Fix to an Altitude" leg preceded by another leg with altitude
termination.
This case should be identified during preflight and approach
preparation and flown in selected lateral mode (HDG/TRK).
In case of shift, raw data should be used to fly the procedure.
Refer to Operator's manual and/or Airbus OEB for more details.
Speed anomaly during a TMPY F-PLN insertion
In cruise with speed managed, a transient speed target drop may occur
when inserting a TMPY F-PLN or activating a SEC F-PLN.
While re-calculating the correct target speed, FMGC may refer to an
optimum speed estimated earlier in the flight.
In this case select speed as required.
Managed speed may be re-selected when the correct target speed is
shown on PRF CRZ page (delay may be approx. 10 seconds).
Refer to Operator's manual and/or Airbus OEB for more details.