FOR SCHEDULES INFORMATION
5.5 Technical Specification
5.6.1 ASM Message Specification
Data Element Sub-Message Action Identifiers Format Data Element Notes
Example
Message Sequence Reference C C C C C C C C C C C C nnaaannnnnannn 24MAY00144E003 The Data Element structure is:
[·4]) preceded with a slash (/)
Separator (Space) C C C C - C C C C - C C → Space
Change Reason(s) O O O O - O O O O - O O aaaa(/aaaa WEAT May be repeated with each
[·8] repeat preceded by a
slash (/)
End of line M M M M M M M M M M M M <≡
Flight Information
Flight Identifier M M M M M M M M M M xx(a)nnn(n) LX544A/ The Data Element structure
(a)/nn(aaa (nn)) 12MAY03 is:
Airline Designator;
Flight Number;
Operational Suffix (if applicable);
Flight Identifier Date preceded by a slash (/) with Optional Month (aaa) and Year (nn).
Separator (Space) C C C C C C C → Space
Flight Leg(s) Change Identifier - C C - C C C C C - aaa/aaa(/aaa ORD/LAS [·10])
Separator (Space) M → Space
New Flight Identifier M xx(a)nnn(n) LX644/ Year is Optional
(a)/nn 12AUG(02)
(aaaa)(nn)
Separator (Space) C C C - → Space Mandatory if the next
element included
Joint Operation Airline C C C 1/xx(a)/xx(a) 1/LX/LH If required
Designators (DEI 1) (/xx(a))
If included, there must be a minimum of 2 or a maximum of 3 Airline Designators with each preceded by a sash (/)
Separator (Space) C C C C → Space Mandatory if the next
element included
Operating Airline Disclosure — C C C C 2/xx(a) or 2/X 2/DL or 2/X If required
Code Share (DEI 2)
Separator (Space) C C C C → Space Mandatory if the next
element included
Data Element Sub-Message Action Identifiers Format Data Element Notes Example
N C R R A A C E F N R T
E N I P C D O Q L A R I
W L N L K M N T T C T M
Separator (Space) C C C C → Space Mandatory if the next
element included
Cabin Crew Employer (DEI 5) C C C C 5/xx(a) or 5/X 5/LX or 5/X If required
Separator (Space) C C C C → Space Mandatory if the next
element included
Onward Flight (DEI 6) O O O O 6/xx(a)nnn(n) 6/SQ103C/1 If required
(a)(/nn(aaa (nn)))
Separator (Space) C → Space Mandatory if the next
element included
Meal Service Note O 7/aa(a)(/aa(a)) 7/FDC/CD/YS/ If required
[·4] or MS/LS
7//a(a) 7//S
or 7/CL//S
7/aa(a)(/aa(a) [·3]//a/(a))
Separator (Space) C C C C → Space Mandatory if the next
element included
Operating Airline Disclosure — C C C C 9/xx(a) or 9/X 9/DL or 9/X If required
Shared Airline or Wet Lease Designation (DEI 9)
End of line M M M M M M M M M M <≡
For different Flight Designators C C C C C C C C C →
with identical data, repeat from Flight Information
Effective 1 March 2012
Passenger Reservations C C C C C a(x)(x)(x) FCML
Booking Designator (x)..
Passenger Reservations C C C C C /aa(aa)(aa) /FNCN If included, must start with
Booking Modifier (aa)... a slash (/)
Aircraft Configuration/Version C C C C C .a(x)(x)(x) .FCM If included, must start with
(x).. a period (.)
Separator (Space) C C C C C → Space Mandatory if the next
element included
Aircraft Registration O O O O O HBINM If required
Separator (Space) C C C C C → Space Mandatory if the next
element included
Operating Airline Disclosure — C C C C C 2/xx(a) or 2/X 2/DL or 2/X If required
Code Share (DEI 2)
Separator (Space) C C C C C → Space Mandatory if the next
element included
Aircraft Owner (DEI 3) C C C C C 3/xx(a) or 3/X 3/LX or 3/X If required
Separator (Space) C C C C C → Space Mandatory if the next
element included
Cockpit Crew Employer C C C C C 4/xx(a) or 4/X 4/LH or 4/X If required
(DEI 4)
Separator (Space) C C C C C → Space Mandatory if the next
element included
Cabin Crew Employer (DEI 5) C C C C C 5/xx(a) or 5/X 5/LX or 5/X If required
Separator (Space) C C C C C → Space Mandatory if the next
element included
Onward Flight (DEI 6) O O O O O 6/xx(a)nnn(n) 6/SQ103C/1 If required
(a)(/nn(aaa (nn)))
Separator (Space) C C C C C → Space Mandatory if the next
element included
Data Element Sub-Message Action Identifiers Format Data Element Notes Example
N C R R A A C E F N R T
E N I P C D O Q L A R I
W L N L K M N T T C T M
Operating Airline Disclosure — C C C C C 9/xx(a) or 9/X 9/DL or 9/X If required
Shared Airline or Wet Lease Designation (DEI 9)
End of line M M M M M <≡
Leg Information
Departure Station M M M M aaa GVA
Scheduled Time of Aircraft M M M M (nn)nnnn 1830 Preceded by Date if
Departure (Aircraft STD) different from ‘Flight
Identifier Date’
Scheduled Time of Passenger C C C C /nnnn /1815 If included, must begin with
Departure (Passenger STD) a slash (/)
Separator (Space) M M → Space Mandatory if the next
element included
Arrival Station M M M M aaa FRA
Scheduled Time of Aircraft M M M M (nn)nnnn 1945 Preceded by Date if
Arrival (Aircraft STA) different from ‘Flight
Identifier Date’
Scheduled Time of Passenger C C C C /nnnn /1955 If included, must begin with
Arrival (Passenger STA) a slash (/)
Separator (Space) C C C → Space Mandatory if the next
element included
Joint Operation Airline C C C 1/xx(a)/xx(a) 1/LX/LH If required
Designators (DEI 1) (/xx(a))
Separator (Space) C C C → Space Mandatory if the next
element included
Operating Airline Disclosure — C C C 2/xx(a) or 2/X 2/DL or 2/X If required
Code Share (DEI 2)
Separator (Space) C C C → Space Mandatory if the next
element included
Aircraft Owner (DEI 3) C C C 3/xx(a) or 3/X 3/LX or 3/X Included only if same
physical aircraft continues
Separator (Space) C C C → Space Mandatory if the next
element included
Cockpit Crew Employer C C C 4/xx(a) or 4/X 4/LH or 4/X If required
(DEI 4)
Separator (Space) C C C → Space Mandatory if the next
element included
Cabin Crew Employer (DEI 5) C C C 5/xx(a) or 5/X 5/LX or 5/X If required
Separator (Space) C C C → Space Mandatory if the next
element included
Onward Flight) (DEI 6) O O O 6/xx(a)nnn(n) 6/SQ103C/1 If required
(a)(/nn(aaa (nn)))
Separator (Space) C C C C → Space Mandatory if the next
element included
Meal Service Note (DEI 7) O O O O 7/aa(a)(/aa(a) 7/FDC/CD/YS/ If required
[·4] or MS/LS
7//a(a) or 7//S 7/aa(a)(/aa(a) 7/CL//S [·3]//a(a)
Separator (Space) C C C → Space Mandatory if the next
element included
Operating Airline Disclosure — C C C 9/xx(a) or 9/x 9/DL or 9/X If required
Shared Airline or Wet Lease Designation (DEI 9)
End of line M M M M <≡
For next leg or group of C C C C
consecutive legs, repeat from Leg Information; if different aircraft type etc., repeat from Equipment Information
Data Element Sub-Message Action Identifiers Format Data Element Notes
Traffic Restriction Note (DEI 8) C C C C aaaaaa→8/a GVAFRA If required
(/nnn) 8/Z/173/A
(/x(x[·53]) Or
Other Segment Information C C C C C C C C aaaaaa→nn(n) GVAFRA If required
(/x(x[·57]) 10/LX836
Supplementary must be included if
Sub-Information Message Supplementary
Information is included
Supplementary Information M M M M M M M M M M SI SI
Indicator
Separator (Space) M M M M M M M M M M → Space
Supplementary Information M M M M M M M M M M x(x)... ABCDEF Free Text
End of line M M M M M M M M M M <≡
Sub-Message Separation C C C C C C C C C C // Also used if Supplementary
Information for Whole Message follows
End of line C C C C C C C C C C <≡ Mandatory if Sub-Message
Separation included
For more sub-messages, C C C C C C C C C C
repeat from applicable Action Information, or, if necessary, create a new physical message and repeat from Message Heading
Supplementary Information M M M M M M M M M M x(x)... DELAY DUE FOG Free Text
End of line M M M M M M M M M M <≡
Reject Information
Blank Line Separator M <≡
Error Line (First) M nnn 004
Separator (Space) M → Space
Reject Reason (First) M x(x[·63] INVALID DEI 711
End of line M <≡
Error Line (Other) O nnn 006
Separator (Space) C → Space Mandatory if Reject
Reason (Other) included
Reject Reason (Other) C x(x[·63] SYSTEM ERROR
End of line C <≡ Mandatory if Reject
Reason (Other) included
For further Reject Reasons, C
repeat from Error Line (Other) Repeat of Rejected Message
Blank Line Separator M <≡
Message Lines before Action O x(x)...
Identifier
Message Lines from Action M x(x)...
Identifier
End of line M <≡
5.7 SSM Sub-Message Definition
The Sub-Message definition details the specific use of each sub-message with an example of each sub-message and additional explanatory notes for each sub-message and data element.
The ‘Status’ column in each Table reflects the Status as shown in the Message Specification Table in Section 4.5. The structure of each element is also defined in that Table.
5.7.1 NEW – Insertion of New Flight Information
Example:
ASM LT
24MAY00144E003/REF 123/449 NEW OPER
LX544A/12 1/LX/LH 3/LX 4/LH 5/LX 6/LX545A/13 9/LX G M80 FCYML/FNCN.FCM HBINM
GVA1830/1815 FRA1945/1955 7/FDC/CD/YS/MS/LS GVAFRA 8/Z/173/A
GVAFRA 10/LX836
→ Refer to Section 5.8 for additional examples on the use of ‘NEW’.
Data Element Data Element Status Use and Explanatory Notes Example
Message Heading
Standard Message Identifier ASM M
End of line <≡ M
Time Mode LT C If data element not provided
assume UTC
End of line <≡ C Mandatory if Time Mode included
Message Reference
Message Sequence Reference 24MAY00144E003 C Mandatory if a long message is split into parts.
The Data Element is composed of:
Date of Message (nnaaa);
Message Group Serial Number (nnnnn);
Continuation/End Code (a);
Message Serial Number (nnn).
Creator Reference /REF 123/449 O If included, must begin with a slash (/)
End of line <≡ C Mandatory if any of above elements
included
Data Element Data Element Status Use and Explanatory Notes Example
Action Information
Action Identifier NEW M
Separator (Space) Space C Mandatory if Change Reason(s)
included
Change Reason(s) OPER O May be repeated. If repeated, each
repeat must be preceded by a slash (/).
End of line <≡ M
Flight Information Flight Information may be repeated
on a separate line for different flights with identical information Flight Identifier LX544A/12 M The Data Element structure is:
Airline Designator;
Flight Number;
Operational Suffix (if applicable);
Flight Identifier Date preceded by a slash (/) with Optional Month (aaa) and Year (nn).
Separator (Space) Space C Mandatory if the next element
included
Joint Operation Airline 1/LX/LH C If applicable, applies to all legs
Designators (DEI 1) subsequently stated.
Minimum of 2 and maximum of 3 Airline Designators.
Separator (Space) Space C Mandatory if the next element
included
Operating Airline Disclosure — C If applicable, applies to all legs
Code Share (DEI 2) subsequently stated.
Not applicable if Operating Airline Disclosure — Shared Airline or Wet Lease Designation (DEI 9) is stated below.
Separator (Space) Space C Mandatory if the next element
included
Aircraft Owner (DEI 3) 3/LX C If applicable, applies to all legs subsequently stated
Separator (Space) Space C Mandatory if the next element
included
Cockpit Crew Employer (DEI 4) 4/LH C If applicable, applies to all legs subsequently stated
Separator (Space) Space C Mandatory if the next element
included
Cabin Crew Employer (DEI 5) 5/LX C If applicable, applies to all legs subsequently stated.
Separator (Space) Space C Mandatory if the next element
included
Onward Flight (DEI 6) 6/LX545A/13 O Applies to the last leg of this flight.
Data Element Data Element Status Use and Explanatory Notes Example
Separator (Space) Space C Mandatory if the next element
included
Operating Airline Disclosure — 9/LX C If applicable, applies to all legs
Shared Airline or Wet Lease subsequently stated.
Designation (DEI 9)
Not applicable if Operating Airline Disclosure — Code Share (DEI 2) is stated above.
End of line <≡ M
Equipment Information Applies to all legs subsequently stated until repeated with the exception of the Onward Flight, which, if stated, applies to the last of the legs subsequently stated
Service Type G M
Separator (Space) Space M
Aircraft Type M80 M
Separator (Space) Space M
Effective 1 March 2012
Passenger Reservations FCYML C If the Passenger Reservations
Booking Designator Booking Designator is not stated,
then the Aircraft Configuration/
Version must be stated Passenger Reservations /FNCN C If included, must start with a
Booking Modifier slash (/)
Aircraft Configuration/Version .FCM C If included, must start with a period (.).
Effective 1 March 2012
If the Aircraft Configuration/Version is not stated then the Passenger Reservations Booking Designator must be stated
Separator (Space) Space C Mandatory if the next element
included
Aircraft Registration HBINM O
The following data elements may be stated here if not already stated under Flight Information:
Operating Airline Disclosure — Code Share (DEI 2)
Aircraft Owner (DEI 3);
Cockpit Crew Employer (DEI 4);
Data Element Data Element Status Use and Explanatory Notes Example
Operating Airline Disclosure — Shared Airline or Wet Lease Designation (DEI 9)
End of line <≡ M
Leg Information Leg Information may be repeated
on a separate line for the next leg/group of consecutive legs.
If the Equipment Information for such legs is different, the Equip-ment Information is repeated first.
Departure Station GVA M
Scheduled Time of Aircraft 1830 M Must be preceded by the date if Departure (Aircraft STD) different from the Flight Identifier
Date.
The specification of the date is Mandatory if any of the dates within a sub-message is different from the Flight Identifier Date.
Scheduled Time of Passenger /1815 C If included, must begin with a
Departure (Passenger STD) slash (/)
Separator (Space) Space M
Arrival Station FRA M
Scheduled Time of Aircraft 1945 M Must be preceded by the date if Arrival (Aircraft STA) different from the Flight Identifier
Date.
The specification of the date is Mandatory if any of the dates within a sub-message is different from the Flight Identifier Date.
Scheduled Time of Passenger /1955 C If included, must begin with a
Arrival (Passenger STA) slash (/)
The following data elements If stated, the data elements apply
may be stated here if not for this leg only
already stated under Flight Information:
Joint Operation Airline Designators (DEI 1);
Operating Airline Disclosure — Code Share (DEI 2)
Aircraft Owner (DEI 3);
Cockpit Crew Employer (DEI 4);
Cabin Crew Employer (DEI 5);
Onward Flight (DEI 6)
Separator (Space) Space C
Meal Service Note (DEI 7) 7/FDC/CD/YS/ O If required MS/LS
Data Element Data Element Status Use and Explanatory Notes Example
Separator (Space) Space C Mandatory if the next element
included
This data element may be If stated, applies to this leg only stated here if it has not already
been stated under Flight Information;
Operating Airline Disclosure — Shared Airline or Wet Lease Designation (DEI 9)
End of line <≡ M
Segment Information If applicable, the information
is composed of either the Traffic Restriction Note or the
optional/conditional other Segment Information.
Additional Segment Information may be repeated on separate lines.
Traffic Restriction Note (DEI 8) GVAFRA C If applicable 8/Z/173/A
or
Other Segment Information GVAFRA 10/LX836 C If applicable
End of line <≡ C Mandatory if one of above
elements included
Sub-Message Supplementary O
Information
Supplementary Information SI M
Indicator
Separator (Space) Space M
Supplementary Information M Free Text
End of line <≡ M
Sub-Message Separation // C Applicable if additional
sub-messages are required or if Supplementary Information for Whole Message follows.
For more sub-messages, repeat from applicable Action Information.
End of line <≡ C Mandatory if Sub-Message
Separation included
Supplementary Information O
for Whole Message
Supplementary Information SI M
Indicator
Separator (Space) Space M
Supplementary Information M Free Text
End of line <≡ M
5.7.2 CNL – Cancellation
The CNL Sub-Message may only be used to remove operations or part-operations. The Action Identifier ADM and the cancel code “NIL” is used to cancel existing administrative information.
Example:
ASM UTC
13JUN00901E002/REF 150/212 CNL CREW
AA407P/27 ORD/LAS
→ Refer to Section 5.8 for additional examples on the use of ‘CNL’.
Data Element Data Element Status Use and Explanatory Notes Example
Message Heading
Standard Message Identifier ASM M
End of line <≡ M
Time Mode UTC C If data element not provided
assume UTC
End of line <≡ C Mandatory if Time Mode included
Message Reference
Message Sequence Reference 13JUN00901E002 C Mandatory if a long message is split into parts.
The Data Element is composed of:
Date of Message (nnaaa);
Message Group Serial Number (nnnnn);
Continuation/End Code (a);
Message Serial Number (nnn).
Creator Reference /REF 150/212 O If included, must begin with a slash (/)
End of line <≡ C Mandatory if any of above elements
included Action Information
Action Identifier CNL M
Separator (Space) Space C Mandatory if Change Reason(s)
included
Change Reason(s) CREW O May be repeated. if repeated, each
repeat must be preceded by a slash(/).
End of line <≡ M
Data Element Data Element Status Use and Explanatory Notes Example
Flight Information Flight Information may be repeated
on a separate line for different flights with identical information Flight Identifier AA407P/27 M The Data Element structure is:
Airline Designator;
Flight Number;
Operational Suffix (if applicable);
Flight Identifier Date preceded by a slash (/) with Optional Month (aaa) and Year (nn).
The Airline Designator, Flight Number and Operational Suffix (if applicable) may be repeated if operated under the same Flight Identifier Date.
Each repetition must be preceded by a slash (/).
A common Airline Designator may be omitted in repetition.
Separator (Space) Space C Mandatory if the next element
included
Flight Leg(s) Change Identifier ORD/LAS C Applicable if change does not apply to entire routing
End of line <≡ M
Sub-Message Supplementary O
Information
Supplementary Information SI M
Indicator
Separator (Space) Space M
Supplementary Information M Free Text
End of line <≡ M
Sub-Message Separation // Applicable if additional
sub-messages are required or if Supplementary Information for Whole Message follows.
For more sub-messages, repeat from applicable Action Information.
End of line <≡ C Mandatory if Sub-Message
Separation included
Supplementary Information O
for Whole Message
Supplementary Information SI M
Indicator
Separator (Space) Space M
Supplementary Information M Free Text