Init Fuel Prediction Page - Extra/Time
Displays the uncommitted fuel left over for contingencies. It is automatically calculated by subtracting TAXI, TRIP, RTE RSV, ALTN, and FINAL fuel from the fuel on board. The corresponding endurance at the alternate (at the destination, if no alternate entered) is calculated assuming a racetrack holding pattern, 1500 feet above the airport, in clean configuration, at green dot speed.
If the extra fuel is negative, dashes are displayed in the endurance field. EXTRA/TIME cannot be modified by the pilots.
If in holding when the EXTRA fuel reaches zero, a TIME TO EXIT message appears in the scratchpad.