Page 170 - Demo

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REV 27
REV 27
PAGE 56
A330
CHINA AIRLINES
USE OF FUEL PENALTY FACTOR TABLES
USE OF THE FUEL PENALTY FACTORS
The Fuel Penalty Factors provided in the following tables are conservative values, given as a guideline in order to increase the crew awareness and to help the decision making.
Note: In case of failure impacting the fuel consumption, the fuel predictions provided by the FMS are no longer reliable (except in One Engine Inoperative OEI condition). The flight crew must still compute and monitor the actual fuel consumption.
Refer to the following tables in order to assess the impact of the failure on the fuel consumption after any ECAM alert that:
® Displays the line FUEL CONSUMPT INCRSD in the
STATUS SD page, or
® Displays Flight Control Surfaces in the INOP SYS, or
® Impacts the Landing Gears or Landing Gear Doors
retraction.
The Fuel Penalty Factors given in these tables have been calculated taking into account:
® The FUEL CRITICAL INOP SYS, and
® The aircraft configuration, speed or altitude described in the
CONDITIONS column.
Ensure that all these conditions are well met before applying the corresponding Fuel Penalty Factor.
METHODOLOGY
The methodology is the following:
® Check the ECAM ALERT table to determine if a Fuel Penalty
Factor is applicable depending on the CONDITIONS column,
then
® Check the INOP SYS table in order to determine if,
according to the actual aircraft status, there is a Fuel Penalty
Factor applicable depending on the CONDITIONS column
® If only one Fuel Penalty Factor (FPF) is applicable:
ADDITIONAL FUEL = (FOB - EFOB at DEST) x FPF This additional fuel must be added to the fuel predictions provided by the FMS
® If two or more Fuel Penalty Factors (FPF) are applicable: ADDITIONAL FUEL = (FOB - EFOB at DEST) x ( FPF1 +
FPF2 +...)
This additional fuel must be added to the fuel predictions provided by the FMS.
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