GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES

Question 1

GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES Reason for Issue:

Answer 1

Implementation of re-dispatch policy to cater for payload restrictions and enhance fuel efficiency on long sectors.
Re-dispatch is a means of carrying reduced contingency fuel in comparison to standard flight plan, by taking advantage of inflight re-planning, while complying with regulations.

Question 2

GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES Crew Procedures:

Answer 2

• CFP mentions “Route reserve reduced due authorized redispatch” on the first page.
• Weather at refuelling airport and refuelling alternate is above Alternate planning minima.
• Route reserve (RTE RSV) on the INIT B page of MCDU to match with the CFP value
• For accurate fuel and time predictions, Flight Crew should insert forecast winds in the MCDU
• Normal company minima is applicable. Obtain latest meteorological conditions prevailing at refuelling airport and refuelling alternate at least one hour prior to the estimated arrival time at re-dispatch Point.
• Crosscheck that the actual fuel on board (AFOB) at Re-Dispatch point (RDP) is equal to or more than the fuel required to continue to the destination as per fuel summary in the CFP If the AFOB is lesser than fuel required to continue to destination at RDP and diversion to refuelling airport is necessitated, PIC should inform ATC using the phraseology: “IFLY XXXX REQUEST CLEARANCE TO DIVERT TO FILED RE-DISPATCH AIRPORT XXXX FOR REFUELLING”.
• If the AFOB is greater than the fuel required at the RDP and the actual/ forecast weather at the destination is marginal or below minima, the crew should continue to the destination and if need be divert to the destination alternate.

Question 3

GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES Re-Dispatch Policy & Guidelines:

Answer 3

As per fuel policy, a contingency fuel of 5% of planned trip fuel or 200 kg whichever is higher is required to be carried on all flights. This amount is dependent on the duration of flight and thus is substantial on long sectors. Due to the accurate forecast techniques, optimization of routes and accuracy of computerized flight plan, the probability of using the contingency fuel has now reduced. By using re-dispatch regulations, operators can now carry less contingency fuel compared to standard flight plan.

Question 4

GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES
Under re-dispatch, contingency is reduced by splitting a flight plan into two parts:

Answer 4

1) Part I: From the departure airport to an airport that is closer than the intended destination via decision point (re-dispatch point). This airport is termed as Refuelling airport.
2) Part II: From a decision point (Re-dispatch Point) on the route of flight, to the planned destination.
The flight plans are computed nominating a Refuelling airport via the re-dispatch point:
Contingency fuel is calculated over the two parts described above., but each is less than the total that would be required for the entire flight to the planned destination.
The actual flight plan will carry the greater of the fuel for the two scenarios (F1 & F2).

Question 5

GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES
At Re-dispatch point, pilot has two possibilities:

Answer 5

1) Continue the flight to planned destination airport if remaining fuel on board is sufficient.
2) Proceed to a refuelling airport considering maximum landing weight limitation, if remaining fuel on board is not sufficient to continue to the destination airport.

Question 6

GUIDELINES ON RE-DISPATCH POLICY AND OPERATING PROCEDURES
At Re-dispatch point, pilot has two possibilities:

Answer 6

The success of re-dispatch flight planning relies on arriving at RDP with AFOB above required fuel for actual Destination. Thus, the Crew must endeavour to fly as close to the planned profile and follow efficient fuel management. Re-dispatch flights will initially be introduced on the Delhi-Istanbul sector and will eventually be launched on other routes.