Thales FMGS - Check Gw; Fms1;Fms2 Gw Diff; Initialize Weights; Weights

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FMS DEGRADED OPERATION

8 OTHER DEGRADED OPERATIONS

4.3. Weights

 FMS1/FMS2 GW DIFF

This scratchpad message (white) is displayed when the difference is

less than or equal to 1,5 metric tons.

This should be due to a sensor anomaly.

 CHECK GW

When A/C is airborne, the FMS GW value

(FUEL PRED page) is continuously cross-

checked with the A/C GW value computed

by the FAC when available.

If these weights differ by more than 7 tons

(16055 Lbs), CHECK GW scratchpad

message (amber) is displayed.

Check for wrong pilot entry.

GW may be overwritten on FUEL PRED

page.

FUEL PRED

AT UTC EFOB

EGLL 1658 3.8

EHAM 1740 1.9

GW / CG FOB

63.7 /25.0 5.75/FF+FQ

RTE RSV/% CRZTEMP/TROPO

0.1/ 5.0 ----°/35000

FINAL TIME

1.0/0030

EXTRA TIME

0.8/0023

CHECK GW

 INITIALIZE WEIGHTS

INITIALIZE WEIGHTS scratchpad message (amber) is triggered when:

 On ground at engine start,

either ZFW or/and FOB have not been

entered.

INIT B page ..................Select

ZFW/BLOCK FUEL ..........Enter

INIT {}

TAXI ZFWCG/ ZFW

0.2 25.0/ __._

TRIP/TIME BLOCK

---.-/---- __._

RTE RSV/%

---.-/ 5.0

ALTN/TIME TOW

---.-/---- ---.-

FINAL/TIME LW

---.-/0030 ---.-

EXTRA/TIME

---.-/----

INITIALIZE WEIGHTS

 After engine start,

ZFW or FOB becomes undefined. This may

happen in case of FMS data lost.

FUEL PRED page ...........Select

GW [3L] .........................Enter