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Fuel Symposium Minimum destination alternate fuel: the « fausse bonne idée ». Capt. Claude Godel OST 06-3. Minimum destination alternate fuel. Present JAR OPS definition of the destination alternate fuel: 1.4 Alternate fuel, which should be sufficient for:

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fuel symposium minimum destination alternate fuel the fausse bonne id e

Fuel Symposium Minimum destination alternate fuel:the « fausse bonne idée »

Capt. Claude Godel

OST 06-3

minimum destination alternate fuel
Minimum destination alternate fuel
  • Present JAR OPS definition of the destination alternate fuel:
  • 1.4 Alternate fuel, which should be sufficient for:
    • a. A missed approach from the applicable MDA/DH at the destination aerodrome to missed approach altitude, taking into account the complete missed approach procedure;
    • b. A climb from missed approach altitude to cruising level/altitude;
    • c. The cruise from top of climb to top of descent;
    • d. Descent from top of descent to the point where the approach is initiated, taking into account the expected arrival procedure; and
    • e. Executing an approach and landing at the destination alternate aerodrome selected in accordance with JAR-OPS 1.295.

Via a straight line?

minimum destination alternate fuel1

5,5 NM

> 40 NM

Minimum destination alternate fuel

Real diversion fuel can be much different from what would be sufficient to fly from the middle of airport A to the middle of airport B.

minimum destination alternate fuel2
Minimum destination alternate fuel

The idea of working on a Minimum destination alternate fuel quantity was raised by DGAC France.

OPSG came to OST 06-1 with a proposal of 15 min which would have been in line with the 15 min increase in final fuel when using a flight plan with no alternate.

OST tasked OPSG to continue to work on the issue but suggested that a better result could be achieved by clarifying the definition of the alternate fuel in JAR OPS.

OPSG agreed and finally decided that this could be done by a simple comment to NPA 58 “Terminology and Fuel” during the present public consultation.

There is no more need for NPA 60 which can be cancelled.

minimum destination alternate fuel3
Minimum destination alternate fuel
  • And the OPSG comment to NPA 58 reads:
  • 1.4 Alternate fuel, which should be sufficient for:
    • a. …
    • b. A climb from missed approach altitude to cruising level/altitude;
    • c. The cruise from top of climb to top of descent,taking into account the expected routing;
    • d. Descent from top of descent to the point where the approach is initiated, taking into account the expected arrival procedure; and
    • e. …
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