Fuel

Question 1

What is Minimum Fuel? (OMA 8.3)

Answer 1

A ‘MINIMUM FUEL’ declaration informs the ATC that all planned aerodrome options have been reduced to a specific aerodrome of intended landing. It also informs the ATC that any change to the existing clearance may result in landing with less than the planned Final Reserve. This is not an emergency situation but an indication that an emergency situation is possible, should any additional delay occur. Crew should not expect any form of priority handling as a result of a ‘MINIMUM FUEL’ declaration. However, the ATC should advise the flight crew of any additional expected delays, as well as coordinate with other ATC units when transferring the control of the aeroplane, to ensure that the other ATC units are aware of the flight’s fuel state.

Question 2

Reduced Contingency Fuel With SCF Data? (OMA 8.1)

Answer 2

If SCF data is available, contingency fuel can be reduced to the greater of:

1. 90% coverage (CONT90), and;
2. An amount to fly for 5 minutes at holding speed at 1500 ft above the destination aerodrome in standard conditions, and;
3. 190 kgs (A319), 204 kgs (A320), 170 kgs (A320 NEO), 200 kgs (A321 NEO).

Question 3

Reduced Contingency Fuel with no SCF Data available? (OMA 8.1)

Answer 3

Only if SCF data is not available, contingency fuel can be reduced to the greater of:

1. 3% of the planned trip fuel, or in the event of in-flight re-planning, 3% of the trip fuel for the remainder of the flight provided that a fuel en route alternate (fuel ERA) aerodrome is available, and;
2. An amount to fly for 5 minutes at holding speed at 1500 ft above the destination aerodrome in standard conditions.

A fuel en-route alternate (fuel ERA) needs to meet the following criteria:

The fuel ERA aerodrome should be located within a circle having a radius equal to 20% of the total flight plan distance, the centre of which lies on the planned route at a distance from the destination aerodrome of 25% of the total flight plan distance, or at least 20% of the total flight plan distance plus 50 NM, whichever is greater. All distances should be calculated in still air conditions (see below).

Question 4

Contingency Fuel with SCF Data Available? (OMA 8.1)

Answer 4

If Statistical Contingency Fuel (SCF) data is available this will be indicated on the OFP and contingency fuel is the greater of:

95% coverage (CONT95), or 99% coverage (CONT99) for selected city pairs, based upon operational factors, and;

An amount to fly for 5 minutes at holding speed at 1500 ft above the destination aerodrome in standard conditions.

Question 5

Contingency Fuel with No SCF Data Available? (OMA 8.1)

Answer 5

If SCF data is not available, this will be indicated on the OFP and contingency fuel is the greater of:

5% of the planned trip fuel, and;

An amount to fly for 5 minutes at holding speed at 1500 ft above the destination aerodrome in standard conditions.

Question 6

2 Engine Taxi Fuel Burn? (5.4 OMB)

Answer 6

2 Engine Taxi: 10 kg/min (all variants).

Question 7

OETD Fuel Burn? (5.4 OMB)

Answer 7

OETD: 7 kg/min (all variants).

Question 8

APU Fuel Burn? (OMB 5.1)

Answer 8

2KG per minute

Question 9

Fuel Burn In Hold? (OMB 5.1)

Answer 9

40KG per minute

Question 10

ENG Anti Ice + Wing Anti Ice Fuel burn in hold? (OMB 5.1)

Answer 10

ENG-AI: +2.0 kg/min

ENG+WING-AI: +3.0 kg/min