Important Note: The modifications resulting from the updated fuel policy regulations, which came into effect on October 30, 2022, are only changes in wording but nothing really new. The terminology "extra fuel" has been replaced with "discretionary fuel." EASA has clarified that the calculations and procedures pertaining to fuel calculations will remain unchanged, and there will be no inquiries regarding the "new extra fuel" concept.

• extra fuel, include anticipated delays or specific operational constraints that can be predicted
• discretionary fuel, include a quantity at the sole discretion of the commander

For reference, additional information can be found in EASA's AIR OPS documentation.

Please refer to EASA AIR OPS below for detailed information on the minimum required fuel. In the case of this question, we have to calculate the Contingency fuel and the Final Reserve fuel. Contingency fuel will be either 5% of 8350 kg or holding for 5 minutes, whichever is greater => if hourly holding fuel flow is 2800 kg, then fuel for 5 minutes holding will be 233 kg; 5% of 8350 kg is 418 => our contingency fuel will be 418 kg. The Final Reserve fuel = holding for 30 minutes = ½ of the hourly holding fuel flow = 1400 kg. Now we have all the information that we need to calculate our minimum required fuel:

• Trip fuel = 8350 kg;
• Contingency fuel = 418 kg;
• Alternate fuel = 4380 kg;
• Final reserve fuel = 1400 kg;
• TOTAL fuel = 14 548 kg.