Modify Flight Schedule

Flight indicators can be modified through the schedule change process. Depending on the change to be made, a warning message in the status will be generated for those affected PNRS.

Keep in mind that when a change occurs through the schedule change process, all indicators (VM) that have been placed by CRC will be deleted respecting those that have been placed by schedule change (KS).

The following modifications can only be made after protecting passengers with the KSGMODIFY command

Header

FLT      Flight number

It is not necessary to change the flight or discontinuity date from the schedule change process. It can be done through date division.

Legs

DEP	Departure Time
ARR	Arrival Time
BRD	Boarding Point
OFF	Off Point
EQP	Equipment
CLS	Classes
CDD	Change Date and Day

We must bear in mind that if there are indicators that are related in the Header and in the Legs, when any of them is modified it must be done in both parts.

Steps to follow

Step 1:

KA*4580  Flight items to modify are displayed

Step 2:

KS.2    Parameter item to modify is selected.

This command displays the flight inventory included in the dates parameter. When this is done you can begin working as it is done in step 3 or ignore it with the KSI command.

From this step, to ignore the KA * ALL or KA * Flight command can also be executed.

Response:

KS.3 
             CARRIER  FLIGHT                       AEP.AEPXX-AA 1625/11JAN06     
                  XX   4420 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END 1    0000011189  22FEB2006  22FEB2006  -234567 X-MO          3 AEP CRD    
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km) 
1	AEP    MDQ    1205   1310     65  0 124/CRJ   5   1     382 
2	MDQ    CPC    1345   1515     90  0 420/DC9   5   1    1194    3 CPC    CRD    1600   1800    120  0 420/DC9   5   1     701 
 
LEG BRD OFF  # M-C  AUTH   BS    LS NG-NL  LSS  TSO  TSC NLOS  WLL  STATUS  ML 
1	AEP MDQ 01 Y Y    50    0                     0    0    0               S   
            02   B               40  2-1    80    0    0                    S   
            03   H               40  2-2    40    0    0                    S   
            04   K               20  1-1    40    0    0                    S   
            05   N               20  1-2    20    0    0                    S   
2	MDQ CPC 01 Y Y   124    0                     0    0    0               S   
            02   B                                0    0                    S   
            03   H                                0    0                    S   
            04   K                                0    0                    S   
            05   N                                0    0            C       S   
3	CPC CRD 01 Y Y   124    0                     0    0    0               S   
            02   B                                0    0                    S   
            03   H                                0    0                    S   
            04   K                                0    0                    S   
            05   N                                0    0            C       S   
    AEP-CPC 01 Y Y    50    0                     0    0    0               S   
            02   B                                0    0                    S   
            03   H                                0    0                    S   
            04   K                                0    0                    S   
            05   N                                0    0                    S   
    AEP-CRD 01 Y Y    50    0                     0    0    0               S   
            02   B                                0    0                    S   
            03   H                                0    0                    S   
            04   K                                0    0                    S   
            05   N                                0    0                    S   
    MDQ-CRD 01 Y Y   124    0                     0    0    0               S   
            02   B                                0    0                    S   
            03   H                                0    0                    S   
            04   K                                0    0                    S   
            05   N                                0    0                    S

Step 3:

 KSGMODIFY The flight is protected in order to start modifying it

Response:

0      FLIGHTS (73) PAX IN (19) PNRS PROCESS
			DONE

System responds with the number of flights, passengers and PNRS to process.

You can verify that the flight is protected by doing the command KS *, which will display the item with the legend *** UPDATE MODE *** as the title.

Step 4:

The necessary modifications are made and in response the item displayed with the modification made is obtained.

Simultaneously, all the changes that need to be made in the different indicators are added, entering them one at a time.

Modify Legs

Departure or Arrival Time Change:

The indicators are DEP for the departure time and ARR for the arrival time. These are changed by segments with the KSLN command (n is the leg number).

Examples:

Modify departure time

KSL1DEP1000

Description:

KS	Fixed command
L1	Leg 1
DEP	departure time indicator
1000	New departure time

Modify arrival time

KSL1ARR1100    Arrival time is modified

Entry is for leg 1

Both departure and the arrival time can be modified simultaneously. The entry of midnight hours is not accepted as 0000 or 2400, and should be replaced if necessary by 2359 or 0001

KSL1DEP1000/ARR1230

This change is reflected as a change in the departure and arrival time in the PNR segments

Equipment Change :

EQP is equipment indicator which is modified by legs. Several equipments can co-exist for the same flight as long as the classes match each other.

Command to modify is :

Equipment Change

KSL1EQP480

Description:

KS	Fixed Command
L1	Leg 1
EQP	Equipment indicator
480	New equipment number (Available in KASAT* table)

Entry is repeated whenever necessary
This change does not modify PNRs.

Change in booking classes

Class modification is loaded for the first leg but it is good for the whole flight.

CLS is class indicator.Classes can be added or canceled only if they are available in the already existent equipment or one to be loaded

Procedure to modify is the following:

Leg 1 is loaded with the classes in the desired order,according to the example:

KSL1 CLS YBHMVO-G.B-N.M

Description:

KSL1	Fixed command
CLS	Class indicator
YBHMVO	Added booking classes,sorted by input order
-G.B	-Deleted booking classes .New booking class
-N.M	-Deleted booking classes .New booking class

After the CLS indicator, the classes that will remain on the flight will be displayed sorted as they were loaded, for example: YBHMVO.
To cancel classes that were on the flight, it must be defined in which class the canceled ones will be located, placing a hyphen, which will indicate the deletion, followed each one by a period (.) And the class where it will be re-accommodated, example : -GB-NM, class G will be eliminated and will be re-accommodated in B, the same with N and M.

The response is the display of the changed made.

Classes can be canceled and re-accommodated in those that are being added as new.

If an error occurs when a class is canceled and it is re-accommodated in another that is not the desired one or in the order of the load or any other type of conceptual error, the KSIR command must be executed, which deletes all the modifications and returns to the next step after having done KSGMODIFY. All correct changes must be entered again.

The only classes that can not be canceled are the mandatory ones, except that all classes in that cabin are canceled and relocated to another cabin.
You can delete one class and re-accommodate it in another class that belongs to another cabin.
This change is reflected by modifying the PNRs that are affected in the change of classes.

Day change:

CDD indicator is "Change date and day". It is modified individually but it is normally done together with a schedule change. Possible levels are 0,1 or 2. It affects legs and it is modified in the following way:

KSL1CDD0	No day change
KSL1CDD1	One day after
KSL1CDD2	Two days after

If the change of day occurs on the ground , the system automatically places the 1G (G: Ground) indicator, whereas if it occurs on flight the indicator will be 1A (A: Air).

The change is applied to the affected leg.
Example:

Example:

Example: 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  1    0000003972  01APR2018  10APR2018  1234567 DIARIO        2 SLA AEP  
   
 LEG BRD OFF DEPT ARRV 'BLK CD NBR/EQP NBC CAB DIST(km) 
1	SLA TUC 2300 2340   40  0 420/DC9   2   1     221 
2	TUC AEP 0010 0130   80 1G 420/DC9   2   1    1075

.

On this flight, the day change is applied to leg 2 since it occurs after the arrival of leg 1 and before the departure of leg 2.

This change is reflected by modifying the affected PNRs

Change of Origin or Destination:

You can modify the origin or destination airport of a section or add or delete any of them.

The procedures are the following:

Origin Airport Change:

KSL1BRDCOR

KS	Fixed command
L1	Leg 1
BRD	Boarding airport
COR	New airport

System response is a display of the modified inventory.

When modifying a boarding airport, the system recalculates the distance between the new loaded leg and the equipment and classes that the leg had.

Schedule should be changed if necessary as it was described in the CHANGE OF HOURS item. Same transaction can be done in the same step as follows:

KSL1BRDCOR/DEP0630/ARR0745

KSL1BRDCOR	Modify origin command
/	Slash
DEP0630	Modify departure time command
/	Slash
ARR0745	Modify arrival time command

System response is a display of the modified inventory.

Modify destination airport

KS	Fixed command
L1	Leg 1
OFF	Origin airport indicator
COR	New airport

System response is a display of the modified inventory.

When modifying a destination airport, the system recalculates the distance between the new loaded leg and the equipment and classes that the leg had.

Schedule should be changed if necessary as it was described in the CHANGE OF HOURS item. Same transaction can be done in the same step as follows:

Changes of Airports with Passenger Re-acccommodation

Keep in mind that in case of re-accommodation if there are passengers at both origin or destination to change, the system will leave them without re-accommodation. To be able to re-accommodate them in the new generated route, the order must be executed next to the command in the following way:

KSL1OFFCOR-REACOK

KS	Fixed command
L1	Leg 1
BRD o OFF	Origin or Destination airport indicator
COR	New airport
-	Hyphen
REACOK	New route re-accommodation indicator.

Keep in mind that if you use the REACOK option when modifying some of the origin or destination points , and then you want to modify any other origin or destination for another leg you must repeat the REACOK option entry with every change.

In case you make a mistake, you must execute KSIR (go back to the formaer step of the KSGMODIFY) and start modifying it again. Neither can you replace the same point twice in the same transaction.

Leg Cancellation

A leg can be eliminated and the system will eliminate the associated segments and re-order the segments and flight segments again.
It must be borne in mind that when a leg is eliminated, when it is indicated, the system acts on the destination airport. Therefore, when you want to eliminate the origin of leg 1, you have to work on an imaginary section or leg 0 (zero).

Example:

Based on the following inventory system response after having done the KSGMODIFY as follows:

CARRIER  FLIGHT       *** UPDATE MODE ***  HDQ.BUEXX-MM 1652/22NOV04    
    XX   4111 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  1    0000005985  01DEC2004  10DEC2004  1234567 DIARIO        3 JUJ AEP  
   
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km) 
1	JUJ    SLA    0700   0730     30  0 124/CRJ  3   1    72 
2	SLA    TUC    0800   0835     35  0 124/CRJ  3   1   221 
3	TUC    AEP    0900   1045    105  0 124/CRJ  3   1  1075 
  
LEG BRD OFF  # M-C  AUTH   BS NG-NL  LSS  TSO  TSC NLOS WLL STATUS  ML 
1	JUJ SLA 01 Y Y    50    0               0    0    0                   
            02   B                          0    0    0                   
            03   H                          0    0    0                   
2	SLA TUC 01 Y Y    50    0               0    0    0                   
            02   B                          0    0    0                   
            03   H                          0    0    0                   
3	TUC AEP 01 Y Y    50    0               0    0    0                   
            02   B                          0    0    0                   
            03   H                          0    0    0                   
    JUJ-TUC 01 Y Y    50    0               0    0    0                   
            02   B                          0    0    0                   
            03   H                          0    0    0                   
    JUJ-AEP 01 Y Y    50    0               0    0    0                   
            02   B                          0    0    0                   
            03   H                          0    0    0                   
    SLA-AEP 01 Y Y    50    0               0    0    0                   
            02   B                          0    0    0                               
            03   H                          0    0    0

To cancel TUC the following command must be done:

KS	Fixed command
L2	Leg 2
DEL	Delete indicator

System response is a display of the modified inventory.

.

Response:

CARRIER  FLIGHT     *** UPDATE MODE ***     HDQ.BUEXX-MM 1728/22NOV18         XX   4111 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  1    0000005985  01DEC2004  10DEC2018  1234567 DIARIO        2 SLA AEP  
   
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km) 
   1 SLA    TUC    0800   0835     35  0 124/CRJ   3   1     221    2 TUC    AEP    0900   1045    105  0 124/CRJ   3   1    1075 
  
LEG BRD OFF  # M-C  AUTH  BS LS NG-NL LSS  TSO  TSC NLOS WLL STATUS ML 
1	SLA TUC 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
2	TUC AEP 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
    SLA-AEP 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0

The system recalculates the distance and eliminates the schedules corresponding to TUC and the related segments. In case it is necessary to modify schedules of the remaining leg, this can be done with the usual procedure.

Returning to the initial example of a 3-leg flight, if you want to cancel JUJ, which is the origin of leg 1, the command is:

KS	Fixed command
L0	Leg 0.
DEL	Delete indicator

Response:

CARRIER  FLIGHT     *** UPDATE MODE ***     HDQ.BUEXX-MM 1728/22NOV04         XX   4111 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  1    0000005985  01DEC2004  10DEC2004  1234567 DIARIO        2 SLA AEP  
   
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km) 
   1 SLA    TUC    0800   0835     35  0 124/CRJ   3   1     221    2 TUC    AEP    0900   1045    105  0 124/CRJ   3   1    1075 
  
LEG BRD OFF  # M-C  AUTH  BS LS NG-NL LSS  TSO  TSC NLOS WLL STATUS ML 
1	SLA TUC 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
2	TUC AEP 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
    SLA-AEP 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0

The system recalculates the distance and eliminates the schedules corresponding to JUJ and the related segments. In case it is necessary to modify schedules of the remaining legs, this can be done with the usual procedure.

Add Legs

Legs can be added and system will create segments based on these legs and re-accommodate them on the flight.

As well as deletion of legs take into account that when adding any the system will act on the destination airport and hence when adding it to the origin leg or leg 1 there is a need to work on an imaginary leg or leg 0 .

Example: Counting on the following inventory and after having done KSGMODIFY.

CARRIER  FLIGHT      *** UPDATE MODE ***     HDQ.BUEXX-MM 1203/23NOV04         XX   4111 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  1    0000005984  11DEC2004  30DEC2004  1234567 DIARIO        1 SLA AEP  
   
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km)    1 SLA    AEP    0800   1000    120  0 124/CRJ   3   1    1275 
  
LEG BRD OFF  # M-C  AUTH BS  LS NG-NL LSS  TSO  TSC NLOS WLL STATUS ML 
  1 SLA AEP 01 Y Y    50  0                  0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0

As an example in order to add TUC to segment 1 as destination airport the command to perform is ;

KSL1ADDTUC

KS	Fixed command
L1	Leg 1
ADD	Add indicator
TUC	New airport

System response is the displayed inventory with the changes adding the new destination,recalculating distances and re-adjusting the new segments.

Response:

CARRIER  FLIGHT      *** UPDATE MODE ***     HDQ.BUEXX-MM 1212/23NOV04         XX  4111 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  
1    0000005984  11DEC2004  30DEC2004  1234567 DIARIO        2 SLA AEP  
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km) 
1	SLA    TUC    0800   1000    120  0 124/CRJ   3   1     221 
2	TUC    AEP    0800   1000    120  0 124/CRJ   3   1    1075 
LEG BRD OFF  # M-C  AUTH  BS LS NG-NL LSS  TSO  TSC NLOS WLL STATUS ML 
1	SLA TUC 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
2	TUC AEP 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
    SLA-AEP 01 Y Y    50   0                 0    0    0                   
            02   B                           0    0    0                               03   H                           0    0    0

When adding legs, all the data corresponding to schedules, equipment and classes is extracted from the previous leg, except when it is added to leg 0 that data is extracted from the subsequent leg, therefore the next step is to modify the new leg schedules and if necessary, the equipment and other commercial indicators.

2.Returning to the initial example of a one-leg-flight , if you want to add JUJ at the beginning of it, the command is:

KSL0ADDJUJ

KS	Fixed Command
L0	Leg 0
ADD	Add indicator
JUJ	New airport

Response:

CARRIER  FLIGHT    *** UPDATE MODE ***       HDQ.BUEXX-MM 1222/23NOV18        XX   4111 
ITEM IDMASTERVL  EFFECT     DISCONT    FREQUENCY           NLG FRM END  
1    0000005984  11DEC2018  30DEC2004  1234567 DIARIO        2 JUJ AEP  
 LEG BRD TD OFF TA DEPT   ARRV   'BLK CD NBR/EQP NBC CAB DIST(km) 
1	JUJ    SLA    0800   1000    120  0 124/CRJ   3   1      72 
2	SLA    AEP    0800   1000    120  0 124/CRJ   3   1    1275 
LEG BRD OFF  # M-C  AUTH BS  LS NG-NL LSS  TSO  TSC NLOS WLL STATUS ML 
1	JUJ SLA 01 Y Y    50  0                  0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
2	SLA AEP 01 Y Y    50  0                  0    0    0                   
            02   B                           0    0    0                   
            03   H                           0    0    0                   
    JUJ-AEP 01 Y Y    50  0                  0    0    0                   
            02   B                           0    0    0                              
            03   H                           0    0

System response is the displayed inventory with the changes, adding the new destination, recalculating distances, origin and destination in the header, number of legs and recreating the new segments.

The next step is to modify the schedules of the new leg ,and if necessary the equipment and other commercial indicators.

3. Option to add legs with the schedule:

You can add legs with the schedule by doing the following command:

KSL1ADDJUJ/DEP1000/ARR1200

KSL1ADDJUJ	Add leg command
DEP1000	Departure time
ARR1200	Arrival time

In case of a typo or concept error when modifying you can return to do the same entry with the correct indicator as modification will be validated after step 5(Except in classes).

2 .If after performing KSGMODIFY command should be necessary to re-establish the taken item as it was in the beginning without modifying anything the entry is :

KSGMODIFY/UNDO

This command ignores the protection that the schedule process does on the flight and restores it. System response is:

3  FLIGHTS  (42) PAX IN (17) PNRS RESTORED 
DONE

System response is the number of flights,passengers and restored PNRs.

3.To visualize the changes that are being made during the process, the command is KS ** which allows to view the status of the indicators before and after the change.

4. Once the command KSGMODIFY is done you cannot do the KA*ALL entry in the same window. System will respond NOT PERMITTED. SCHEDULE PROCESS. You can view KA* entry by changing to another window

5.You can execute the commands to add commercial indicators to flights (sales limit, waiting list limit, closing or opening of classes, etc.) while making some modification of flights, but after the KSGMODIFY entry, not before . KSGMODIFY can only be avoided if the only modifications to be made are commercial indicators.

6.To ignore the changes that have been made after KSGMODIFY entry , KSIR command can be performed. It ignores the changes made and returns to the step after the KSGMODIFY.

Step 5

In case of having deleted or changed a leg , a passenger re-accommodation affected to such legs or segments must be executed. To execute the passenger re-accommodation take a look at chapter PASSENGER RE-ACCOMMODATION WITHIN THE SCHEDULE CHANGE PROCESS

Step 6

KSAVE  	 	Sets the changes and finalizes the schedule change process

Response

DONE

This procedure, in addition to processing and saving the changes made, will modify the affected PNRs placing in the confirmed segments of the modified flight a UN status and will create a new segment with the updated data and status TK. Those PNRs that had been held on waiting list will also get a status UN to the modified segment and a TL status to the new segment. The segments that were with status MM or HM before the modification will also appear UN but the new segment will be MM or HM as appropriate.

KSH	Fixed command
FLT	Flight indicator
4100	New flight number or service

KIU Online Documentation

Modify Flight Schedule

Modify flight number

Modify Legs

Equipment Change :

Day change:

Change of Origin or Destination:

Origin Airport Change:

Modify destination airport

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