IRImplementing rule
SPO.OP.131Fuel/energy scheme – fuel/energy planning and in flight re-planning policy – aeroplanes and helicopters
(a)As part of the fuel/energy scheme, the operator shall establish a fuel/energy planning and inflight re-planning policy to ensure that the aircraft carries a sufficient amount of usable fuel/energy to safely complete the planned flight and to allow for deviations from the planned operation.
(b)The operator shall ensure that the fuel/energy planning of flights is based upon at least the following elements:
(1)procedures contained in the operations manual as well as:
(i)current aircraft-specific data derived from a fuel/energy consumption monitoring system or, if not available;
(ii)data provided by the aircraft manufacturer; and
(2)the operating conditions under which the flight is to be conducted including:
(i)aircraft fuel/energy consumption data;
(ii)anticipated masses;
(iii)anticipated meteorological conditions;
(iv)the effects of deferred maintenance items and/or configuration deviations; and
(v)anticipated delays.
(c)For aeroplanes, the operator shall ensure that the pre-flight calculation of the usable fuel/energy that is required for a flight includes:
(1)taxi fuel/energy that shall not be less than the amount expected to be used prior to takeoff;
(2)trip fuel/energy that shall be the amount of fuel/energy that is required to enable the aeroplane to fly from take-off, or from the point of in-flight re-planning, to landing at the destination aerodrome;
(3)contingency fuel/energy that shall be the amount of fuel/energy required to compensate for unforeseen factors;
(4)destination alternate fuel/energy
(i)when a flight is operated with at least one destination alternate aerodrome, it shall be the amount of fuel/energy required to fly from the destination aerodrome to the destination alternate aerodrome; or
(ii)when a flight is operated with no destination alternate aerodrome, it shall be the amount of fuel/energy required to hold at the destination aerodrome to compensate for the lack of a destination alternate aerodrome;
(5)final reserve fuel/energy that shall be protected to ensure a safe landing; the operator shall take into account all of the following, and in the following order of priority, to determine the quantity of the final reserve fuel/energy:
(i)the severity of the hazard to persons or property that may result from an emergency landing after fuel/energy starvation;
(ii)the likelihood of unexpected circumstances that the final reserve fuel/energy may no longer be protected;
(6)additional fuel/energy, if required by the type of operation; it shall be the amount of fuel/energy to enable the aeroplane to perform a safe landing at a fuel/energy en route alternate aerodrome (fuel/energy ERA aerodrome critical scenario) in the event of an engine failure or loss of pressurisation, whichever requires the greater amount of fuel/energy, based on the assumption that such a failure occurs at the most critical point along the route; this additional fuel/energy is required only if the minimum amount of fuel/energy that is calculated according to points (c)(2) to (c)(5) is not sufficient for such an event;
(7)extra fuel/energy to take into account anticipated delays or specific operational constraints; and
(8)discretionary fuel/energy, if required by the pilot-in-command.
(d)For helicopters, the operator shall ensure that the pre-flight calculation of the usable fuel/energy that is required for a flight includes all of the following:
(1)fuel/energy to fly to the aerodrome or operating site of intended landing;
(2)if a destination alternate is required, destination alternate fuel/energy, which shall be the amount of fuel/energy that is required to execute a missed approach at the aerodrome or operating site of intended landing, and thereafter, to fly to the specified destination alternate, approach and land; and
(3)final reserve fuel/energy, which shall be protected to ensure a safe landing; the operator shall take into account all of the following, and in the following order of priority, to determine the quantity of the final reserve fuel/energy:
(i)the severity of the hazard to persons or property that may result from an emergency landing after fuel/energy starvation; and
(ii)the likelihood of such unexpected circumstances that the final reserve fuel/energy may no longer be protected;
(4)extra fuel/energy to take into account anticipated delays or specific operational constraints; and
(5)discretionary fuel/energy, if required by the pilot-in-command.
(e)The operator shall ensure that, if a flight has to proceed to a destination aerodrome other than the one originally planned, in-flight re-planning procedures for calculating the required usable fuel/energy are available and comply with points (c)(2) to (c)(7) for aeroplanes, and point (d) for helicopters.
(f)The pilot in command shall only commence a flight or continue in the event of in-flight replanning, when satisfied that the aircraft carries at least the planned amount of usable fuel/energy and oil to safely complete the flight.
IR · SPO.OP.131 — Regulation (EU) No 965/2012 · Regulation (EU) 2021/1296 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026