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Control Centre, located in the Air France headquarters at Paris Charles de Gaulle airport,
consisting of:
• technicians responsible for preparing part A of the flight dossiers,
• technicians responsible for managing slots and monitoring the ATC flight plans,
• dispatchers monitoring the flights.
Preparation of flight dossiers
Part A of the long-haul flight dossier is prepared with the help of computer programmes
(MISTRAL, SAILOR and OCTAVE). The data used is that available at the time of preparation
of the dossier, between seven and three hours before the programmed departure.
The following data items are taken into account for drawing up part A:
• the estimated loads (freight and passengers),
• the weight and consumption data specific to the aircraft,
• the NOTAM’s (for en route restrictions and dangerous areas),
• the meteorological parameters used in the operational flight plan calculation tool
(OCTAVE), updated at 4 h 00 and 16 h 00,
• the information supplied by the originating station for calculating the limitations on
take-off (runway in service, temperature, QNH, state of the runway) along with the
NOTAM’s of the departure airport,
• the MEL / CDL items declared by the maintenance services and relevant for this part,
• the TAF and NOTAM taken into account for the automatic determining of the accessibility
of the destination, alternate and ETOPS support aerodromes,
• the one or more TEMSI used to take into account any significant meteorological phenomena.
The sending of the ATC flight plan ends this preparation. This triggers the automatic
generation of the information in part B of the dossier. The flight dossier, made up of parts A
and B can then be printed by the station. In the case of certain stations, depending on
national regulations, when the airline sends the flight plan it is not automatically submitted, as
this must be done locally. This is the case at Rio de Janeiro. For this station, the central flight
study service sends the ATC flight plan to the Brazilian Air Traffic Control Service (at the
address SBGLYOYX) with all of the addresses of the FIR control centres to be crossed in
box 18 of the ATC flight plan. The latter then submits the flight plan to all of the FIR control
centres involved.
ATC cell
The ATC cell monitors the resetting of times for the entire fleet as well as the management of
take-off slots for the Eurocontrol zone.
56
Dispatch
The dispatchers carry out the function of monitoring flights from three hours before departure
until the arrival of the aircraft. They make the regulatory contact before the aircraft's entry into
an ETOPS zone. They reply to the requests made by crews on the ground or in flight. They
monitor changes in meteorology and NOTAM’s.
1.17.1.2 Flight Departure
The agent who carries out the flight departure function at the station physically puts together
the flight dossier that he hands over to the crew. He prints parts A and B about three hours
before the flight's departure. He prints part C shortly before the crew's arrival. He puts
together the sets of drawings for the flight dossier and traces the ETOPS strip charts for the
flights concerned.
Once the crew has studied the flight dossier, the captain signs the "PPV copy" form
specifying the quantity of fuel as well as the alternate airfield that he chooses at take-off. This
copy is archived at the departure station. For ETOPS flights, the meteorological forecasts
used for the accessibility of the support airfields chosen are copied onto this same document.
1.17.1.3 Preparation of flight AF447 on 31 May 2009
Preparation of the flight by the central flight study service
The flight was prepared between 15 h 28 and 18 h 59. Paris Orly was given as the alternate
airport at destination. Given the estimated load of 37.8 t, the dossier included a main flight
plan at a standard Mach of M 0.82 with an ETF at Bordeaux Mérignac with alternate at
Toulouse Blagnac as well as two additional direct flight plans, one at Mach 0.82 and the
other at a "slower Mach", i.e. M 0.81. A summary table of the loads offered enabled the crew
to make the choice of the definitive flight plan from among these three options.
The preparation agent sent the ATC flight plan at 18 h 57. He stated that he did not notice
anything specific during the preparation of this flight. There was no intervention by the ATC
cell, as the flight was planned at the time programmed.
Preparation of the flight at Rio
The flight departure agent started printing the dossier at 19 h 02.
The Brazilian air traffic control service submitted the ATC flight plan to the air traffic control
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