How should the fuel consumed be evaluated?
Airlines have a choice between two methodologies for monitoring fuel use.
Airlines must monitor fuel use for each flight including fuel consumed by the APU.
Method A includes APU fuel after the flight whereas Method B includes APU fuel before the flight.
A methodology must be selected and consistently applied for each aircraft type.
|Possible sources for fuel uplift and fuel in tanks|
|1. On-board measurement system|
|2. Fuel supplier|
|3. Mass & balance|
|4. Aircraft technical log|
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