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in either direction.
ATC LAT REQ
MCDU DATA FORMAT LIST FOR AFN, CPDLC AND ADS
Applicable to: ,
The following chart lists all the data the pilot may enter on the MCDU.
It also shows the acceptable format for the various data items, the acceptable range, the units of
entry, and the MCDU pages on which the data can be entered.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INFORMATION SYSTEM
CNS/ATM CONTROLS/INDICATORS - MCDU
A330/A340 FLEET DSC-46-55-30 P 43/56
FCOM 19 AUG 10
The following codes are used to indicate various data formats :
A : Letters
N : Numbers
X : Letters and Numbers
DATA NAME FORMAT RANGE UNIT DISPLAY PAGE
A/C ICAO CODE XXXXXXXX 8 characters COMM CONFIG
A/C REGISTR XXXXXXX 7 characters COMM CONFIG
ACARS A/L ID AA 2 letters COMM CONFIG
FLNNN or NNN
Leading zeros on NNN may
be omitted
30-410 Hundreds
of feet
(MSL)
NNNNNFT or NNNNN
Between 0 and 1 000 ft, “FT”
must be written.
Leading zeros may be
omitted.
0-25 000 Feet
ALT
NNNNNM
Leading zeros may be
omitted
0-12 500 Meters
ATC VERT REQ
POSITION REPORT
ASSIGNED ALT Same as ALT MESSAGE MODIFY
ASSIGNED SPD Same as SPD MESSAGE MODIFY
AT Same as UTC MESSAGE MODIFY
ATC CENTER AAAA 4 letters NOTIFICATION
BLOCK ALT Same as ALT/
Same as ALT
ATC VERT REQ
CAN AT Same as DIR TO
Same as UTC
MESSAGE MODIFY
CLB TO/START AT Same as ALT/
Same as START AT.
START AT may be optional.
START AT may be modified
independently if preceded by
“ / ”.
ATC VERT REQ
CLBING TO Same as ALT EMERGENCY POSITION
REPORT
CLIMBING TO Same as ALT MESSAGE MODIFY
CRZ CLB TO Same as ALT ATC VERT REQ
WHEN CAN WE EXPECT
DES TO/START AT Same as ALT/
Same as START AT
ATC VERT REQ
DESCENDING TO Same as ALT EMERGENCY MESSAGE
MODIFY
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INFORMATION SYSTEM
CNS/ATM CONTROLS/INDICATORS - MCDU
A330/A340 FLEET DSC-46-55-30 P 44/56
FCOM 19 AUG 10
Continued from previous page
DATA NAME FORMAT RANGE UNIT DISPLAY PAGE
DEVIATING Same as OFFSETTING POSITION REPORT
MESSAGE MODIFY
XXXXX (Fixname) Min 1
alphanumeric
Max 5
alphanumeric
DDMM.MB/EEEMM.M
C (lat/long)
DD : 0-90
B : N or S
Degrees
”DD” = lat degrees
”EEE” = long degrees
MM.M : 0-59.9 Minutes
DIR TO
”MM.M” = lat and long
minutes
Leading zeros may be
omitted
EEE : 0- 180
C : E or W
Degrees
ATC LAT REQ
NNN.NNM or NNN.N
Leading zeros may be
omitted
DISTANCE 0-999.9 NM MESSAGE MODIFY
NNNNKM
”KM” must be written.
Leading zeros may be
omitted
1-1 024 KM
DIVERTING/VIA XXXXX/XXXXX
If left (right) field is filled in,
right (left) field must also be
filled in.
VIA may be modified
independently if preceded by
“ / ”.
For each
XXXXX :
Min 1
alphanumeric
Max 5
alphanumeric
EMERGENCY
DESCENDING TO Same as ALT POSITION REPORT
ENDURANCE HHMM
”HH” = NN or NNH
”MM” = NN or NNMIN
”MIN” = “MIN”, “MN” or “M”
HH : 0-23
MM : 0-59
Hours
Minutes
EMERGENCY POSITION
REPORT
ENSUING WPT Same as DIR TO MESSAGE MODIFY
ETA Same as UTC POSITION REPORT
FREE TEXT Any character which belongs
to : (A ... Z), (0 ... 9), ( ), (/),
(+), (-), (.)
Max 96
characters
TEXT
MORE FREE TEXT
FREQ NNNNN
Leading zeros may be
omitted
2 850–28 000 HF : kHz ATC OTHER REQ
EMERGENCY
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INFORMATION SYSTEM
CNS/ATM CONTROLS/INDICATORS - MCDU
A330/A340 FLEET DSC-46-55-30 P 45/56
FCOM 19 AUG 10
Continued from previous page
DATA NAME FORMAT RANGE UNIT DISPLAY PAGE
NNNNNNNNNNNN
SATCHANNEL :
corresponds to a 12 digits
telephone number
12 numbers
NNN.NNN 225-399.975 UHF : MHz
NNN.NNN 117-138 VHF : MHz
FROM Same as DIR TO MESSAGE MODIFY
GROUND SPD NNNKT or NNN
Leading zeros on NNN may
be omitted
70-700 Kt POSITION REPORT
GROUND TRK Same as HEADING ATC LAT REQ
NNN
Leading zeros may be
omitted
1-360
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 4(42)
