Document ID: chunk:federal_register_of_legislation:F2024C01173:reg:4:p5
Version: federal_register_of_legislation:F2024C01173
Segment Type: reg
Provision Reference: reg 4 (pt 5/18)
Character Range: 155931–158771

pilot in command must each compensate for whichever is the greater of:
 (a) the effect of airframe icing for 10% of the time during which icing is forecast, including taking into account the fuel that would be used by the use of engine and wing anti-ice during the same period; or
 (b) the fuel that would be used by use of engine anti‑ice, for the entire time during which icing is forecast.

Other factors to be compensated for
 (6) When calculating the fuel required under paragraphs (1)(a), (b) and (c), the operator and the pilot in command must each increase the fuel supply by 5% as a performance deterioration allowance, unless the operator:
 (a) uses the most recent aeroplane-specific fuel consumption data derived from a fuel consumption monitoring system; and
 (b) includes in fuel supply calculations fuel sufficient to compensate for any such deterioration.
 (7) If an auxiliary power unit is a required power source under the aircraft flight manual instructions, the operator and the pilot in command must each account for the fuel consumption of the auxiliary power unit during all phases of flight where it might be used.
 (8) The operator and the pilot in command must each account for any additional fuel consumption due to the minimum equipment list or the configuration deviation list.
 (9) In this section:
accepted forecast means a weather forecast made by a person or body that holds an authorisation (however described) granted by an authority of the Contracting State, to provide weather forecasts for aviation purposes.
performance deterioration allowance means the difference in fuel consumption determined using the fuel consumption data source mentioned in paragraph 7.04(1)(b) (the aeroplane manufacturer's data) and that mentioned in paragraph 7.04(1)(a) (the aeroplane-specific fuel consumption data).

7.07  Requirements for determining fuel before, and monitoring fuel during, flight
 (1) The operator and the pilot in command of an aeroplane for a flight must each ensure that:
 (a) the amount of usable fuel on board the aeroplane is determined before the flight commences (the relevant fuel); and
 (b) for an aeroplane that has a maximum take-off weight greater than 5 700 kg—the relevant fuel is recorded; and
 (c) regular in-flight fuel amount checks are conducted.
Note: Procedures to ensure that a flight of the aeroplane is conducted in accordance with the fuel requirements in this Chapter, including procedures for how regular in-flight fuel amount checks will be conducted for a flight, must be included in the operator's exposition: see regulation 121.225 and paragraphs 119.205(1)(h) and (o) of CASR.
 (2) The pilot in command must do the following at each in-flight fuel amount check:
 (a) determine the amount of usable fuel remaining;
 (b) compare planned fuel consumption with actual fuel