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NO ANSWER TO
REQUEST
: A crew request was previously sent to the ground and no answer
(uplink message) was received within 4 min.
FLIGHT PLAN INITIALIZATION FUNCTION
Applicable to:
,
,
MSN,,,,
This function enables lateral and vertical flight plan data as well as performance data to be
exchanged between the aircraft and a ground station. The aircraft may send flight plan requests
for active and secondary flight plan. (downlink messages). The ground station may send flight plan
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and performance data (uplink messages) either under aircraft request or automatically without any
request.
Each uplink message concerns either the active or secondary flight plan but never both flight plans at
the same time. The data sent to the aircraft are checked for flight plan consistency.
A MCDU message comes up when an uplink message is received. “ACT (or SEC) RTE UPLINK”.
If an error prevents the decodind process of the message, “INVALID RTE UPLINK” is displayed on
MCDUs.
An uplink message can be routed to the active flight plan if no engine is started and no active flight
plan exists. Otherwise, it is routed to the secondary. The crew will insert it into the secondary flight
plan or will reject it using the CLR key.
Note: The flight plan may also be initialized using the ACARS function page selected from DATA
INDEX page.
PERFORMANCE DATA
On ground and before engine start, the ground station may also send performance data to the
aircraft.
Performance data are always associated with the uplink flight plan. It is either automatically
inserted with the active flight plan data, or stored in the secondary with the corresponding flight
plan.
This message contains part or all of the following data :
ZFW, ZFWCG, taxi fuel, block fuel, cruise flight level, tropopause altitude, cruise temperature,
transition altitude, cost index, performance factor.
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Note: After engine start an uplink performance data message is rejected automatically without
any scratchpad message.
SCRATCHPAD MESSAGES RELATED TO FLIGHT PLAN AND PERFORMANCE
INVALID RTE UPLINK An error is detected, the uplink message is rejected.
ACT or SEC RTE UPLINK A F-PLN is stored in the active or secondary flight plan.
FLT NUMBER UPLINK FLT NBR has been initialized within a F-PLN message without
previous request.
CHECK FLT NUMBER The uplinked FLT NBR differs from the one specified in the request.
CHECK CO RTE The uplinked CO RTE ident differs from the one specified in the
request.
INVALID FLT NBR UPLINK The uplink contains a valid F-PLN but the FLT NBR is invalid.
PERF DATA UPLINK Performance data is received
INVALID PERF UPLINK Performance uplink message has been rejected
RTE DATALINK IN PROG A flight plan modification is performed after a F-PLN INIT request has
been sent ; this message is displayed until the uplink is received.
UPLINK INSERT IN PROG This message is displayed during insertion of a Flight Plan.
TAKEOFF DATA FUNCTION
Applicable to:
,
,
MSN,,,,
The takeoff data function is available for the active flight plan only. It is used to request to the ground
station, information data for up to 2 runways and to receive this data for up to 4 runways.
The crew sends a request indicating the departure airport, runway idents, CG, GW and weather
conditions (such as BARO setting wind, temperature...). In response he receives the takeoff speeds
for up to 4 runways but only one set of data may be inserted in the active flight plan for the selected
active runway.
Takeoff speeds are computed for max and flex takeoff.
The takeoff data function has required the modification of the standard PERF TAKEOFF page and
the addition of 2 news pages:
• UPLINK TO DAT REQ page that enables the crew to specify a request to the ground.
• UPLINK XXX TO DATA page (XXX for MAX or FLEX)
These 2 pages are accessed from the PERF TAKEOFF page in PREFLIGHT and DONE phase only.
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SCRATCHPAD MESSAGES RELATED TO TAKEOFF DATA
TAKEOFF DATA UPLINK : Takeoff data uplink message is received
INVALID TAKEOFF
UPLINK
: The UPLINK message is rejected
WIND DATA FUNCTION
　
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