The operator must ensure that in-flight replanning procedures for calculating usable fuel required when a flight has to proceed other than originally planned includes-
- trip fuel for the remainder of the flight;
- reserve fuel consisting of-
(i) contingency fuel;
(ii) alternate fuel, if a destination alternate aerodrome is required, including selection of the departure aerodrome as the destination alternate aerodrome;
(iii) final reserve fuel; and
(iv) additional fuel, if required by the type of operation; and
- extra fuel, if required by the pilot-in-command.