Scheduling a Maintenance Order—Exercises

Main Exercise

Purpose: The purpose of this exercise is to understand how a work order structure is scheduled. This is done through a maintenance order from IFS/Vehicle Information Management.          

Create a Serial Structure

Purpose: The purpose of this exercise is to create a serial structure that can be used for a Maintenance Order.

Windows:
Serial Structure Information

1. Open the Serial Structure Information window.
2. Query for a record where the Part Number = X747-900, Part Rev = * and Vehicle ID = NO-766.
3. Duplicate the record.
4. Change the Serial Number and Vehicle ID according to the data in the table below:

   Part Number	Part Rev	Serial Number	Vehicle ID
   X747-900	*	X-1234	X-766

5. Save the information.
6. Right-click on the window header and then click Import Template Structure.
7. Select the Generate Serial Numbers check box in the dialog box that appears.
8. Change the date in the Mfd Date field to that of one year ago and click OK. A message box will appear displaying the number of parts that were inserted into the structure as well as the number of serials created.
9. Right-click on the window header and click Set Structure Operational. Click Yes in the dialog box that appears.
10. Right-click on the window header again and click Set Structure In Operation. Click Yes in the dialog box that appears.

Note: The serial is now created with a number of serialized parts where some of the serials are affected by a maintenance program. To view these click the Multilevel tab and query for records that have a value (you can use %) for Maint Program ID.

Perform Due Calculations

Purpose: The purpose of this exercise is make a number of maintenance tasks that are due for execution.

Windows:
Serial Structure Information

1. Using the same Serial Structure Information window, right-click on the window header and click Serial Maintenance.
2. The Serial Maintenance window appears, right-click on the window header and click Task Calculate.
3. In the dialog box that appears, select the Calculate Entire Structure check box and click OK.

You now have a number of due tasks for this vehicle, you can view them in the Next Intervalmaint. in Structure tab.

Purpose: The purpose of this exercise is to create a work order structure for your maintenance order.

Windows:
Task Distribution
Active Work Orders

1. Open the Task Distribution window and query for your vehicle ID.
2. Enter values in the relevant fields according to the table below:

   Distribution Type	Late Start Date	Requested Finish Date	Workshop Code
   Work Order	Monday Next at 08:00 AM	Friday Next at 5:00 PM	X-LDN

3. Select the Create WO Structure check box.
4. Select the Include Task? check box against all pending tasks and save.
5. Open the Active Work Orders window and query for work orders that belong to your site and the following directive %Maintenance Order%.
6. Select the work order that has the highest work order number, right-click and click Structure. You can view the top work order and its sub work orders in the Structure For Work Order window that appears.

Note: You are now ready to send this structure to the CBS Server to be scheduled for the first time!

Schedule A Work Order Structure

Purpose: The purpose of this exercise is to schedule the work order structure/maintenance order that was created above.

Windows:
Prepare Work Order
Work Order Execution Logic
Work Order Simulation Client

1. In the Structure For Work Order window that you are still working on, select any of the sub work orders, right-click and click Prepare. The Prepare Work Order window appears.
2. Right-click on the General tab, point to Work Order Status and click Prepared.
3. In the dialog that appears, accept the default values and click OK. The entire work order structure is now sent to the CBS Server for scheduling. When done, the scheduling constraint for the work order should be set to Resolved.
4. Go back to the Work Order Structure window and query for the same work order structure (OR refresh the record). All of the work orders should now be in status Prepared, and all the scheduling constraints should be Resolved.
5. For each work order, check that the operations are scheduled, and that the work orders have been updated with the correct Planned Start and Planned Finish dates.
6. Switch over to the IFS Scheduling/Simulation Client (You can open it through the Work Order Simulation Client) and query for the schedule from the CBS Server.
7. Clear the Gantt Chart. Drag and drop your Maintenance Order onto the Gantt Chart. Note: Observe that a single work order is scheduled to take place a few weeks ahead in the future. Also the work order along with the entire work order structure is tardy. What do you think is the reason?

Note: If you need to schedule the work orders residing in an Execution Logic Structure (ELS), you can do so on the Work Order Execution Logic window.

Purpose: The purpose of this exercise is to understand the available rescheduling options and how to perform rescheduling.

Windows:
Prepare Work Order
Work Order Execution Logic
Work Order Simulation Client

1. As you can see, the Requested Finish date on the top work order could not be met. You will accept this fact, and now change the Requested Finish date to match the planned finish date.
2. In Prepare Work Order window for the top work order, set the Requested Finish date to the day after its planned finish date. Use the Work Order Execution Logic window if you are working with an ELS work order structure.
3. Save the information. The new date is now sent to the CBS Server. However, the structure is not rescheduled until you explicitly order such a reschedule.
4. In the Prepare Work Order window or the Work Order Execution Logic window, right-click and click Reschedule Work Order Structure/Project.
5. In the dialog box that appears, select the Re-assign Resources and As Late as Possible check boxes.
6. Click OK.
7. The structure is now rescheduled. Switch over to the IFS Scheduling/Simulation Client (Work Order Simulation Client) again and query for the schedule from the CBS Server. Note: The work order structure is now planned as late as possible, and have taken the constraint on the last work order into account. The whole work order is now planned on the same day.

Purpose: The purpose of this exercise is to understand what updates are made to the structure.

Windows:
Prepare Work Order
Work Order Execution Logic
Work Order Simulation Client

1. In the Structure For Work Order window, select the work order for a Nose Landing Gear (Object ID contains characters NLG), right-click, point to Work Order Status and click Prepared.
2. Click the Operations tab.
3. For the operation on this work order, change Planned Men to 10 and save.
4. Right-click on the window header and click Reschedule Work Order Structure/Project.
5. In the dialog box that appears, select the Re-assign Resources and As Late as Possible check boxes.
6. Click OK.
7. Switch back to the Structure For Work Order window and query for the work order structure again (or refresh). The work order you changed is now Unresolved, as well as the top work order. This is because the 10 men with the required craft is not available in the system to perform the work. As long as any work order in the structure is Unresolved, the top work order will remain Unresolved as well. Also, the Planned Start and Planned Finish dates are removed.
8. Switch over to the IFS Scheduling/Simulation Client (Work Order Simulation Client).
9. Query for the schedule from the CBS Server. The work order structure is partially unscheduled and partially scheduled.
10. Switch back to the Prepare Work Order/Operations tab.
11. Change Planned Men to 10 again and save.
12. Right-click on the window header and click Reschedule Work Order Structure/Project.
13. In the dialog box that appears, select the Re-assign Resources and As Late as Possible check boxes.
14. Click OK. The work order structure should now be back in its original state.
15. In the Structure For Work Order window set the status of the work order for Nose Landing Gear to Prepared.
16. Click the Materials tab. Note: For the part that was required for the operation 322100, the requirement date for this part has been moved to when the operation is supposed to be executed.