Manage Unified Task Sequence

Maintenance Task

Chapter x – Manage Unified Task Sequence

This section dwells on the Maintenance Task business component and its activity Manage Unified Task Sequence.

Manage Unified Task Sequence – A summary of the activity

This activity enables you to create and update the definition of a sequence control. A sequence control is identified by sequence control # and defines the execution order for a set of component tasks. More precisely, a number of tasks related to several parent tasks can be sequenced to be executed in a specific order.

Sequence control numbers prove crucial in the maintenance of parts and components in a shop. For example, a mechanic can identify the exact order in which a set of tasks must be executed on a part by its sequence control #.

Using this activity, you can create a sequence control # and

4 Associate parts to the sequence control #

4 Associate tasks to a sequence control #. (These tasks are called root tasks for which repair schemes must have been defined using the Maintain Repair Scheme activity.)

4 Sequence related tasks of all the root tasks in a specific order for execution on parts/components in a shop.

You can also modify the above details for an existing sequence control in future.

However, a part can be associated with only one sequence control # that is in “Active” status at any point of time. Note that this activity does allow for sequencing of tasks applicable to aircraft.

What you can do in this activity

Create sequence control #

4 Create sequence control #.

4 Associate parts to a sequence control #.

4 Associate tasks to a sequence control #.

4 Sequence tasks for a sequence control #.

Modify sequence control #

4 Specify the sequence control # you wish to modify.

4 Update details of the sequence control #.

Prerequisites

4 Define repair scheme for tasks that you want to map to the sequence control #.

4 Define tasks that you want to map to the sequence control #.

Managing unified task sequence

Ø Select the “Manage Unified Task Sequence” link under the “Configuration” business component.

The “Manage Unified Task Sequence” page appears.

To create sequence control #

Ø Enter the following fields in the “Define Task Seq. Control #” group box to

Seq. Control #

The sequence control that you want to create and record details. Mandatory.

If the "Sequence Control Generation Mode" is set as "Auto" in the Set Options of the Maintenance Task component, the system automatically generates the sequence control # for the new sequence on successful mapping of the parts to the sequence control. However, it is mandatory for the user to specify the sequence control #, if the "Sequence Control Generation Mode" is set as "Manual”.

Help facility available

Seq. Control Desc.

The short name/description of the sequence control for which you want to record details. Mandatory.

Status

Use the drop-down list box to select the status of the sequence control # that you wish to modify. The drop-own list box displays Active and Inactive.

Ø Select “Create New Sequence Control #” radio button.

Ø Select the “Map Parts To Seq. Control #” tab.

Ø Select the “Map Tasks to Seq. Control #” tab.

Ø Select the “Sequence Tasks” tab

Mapping parts to sequence control #

Ø Select the “Map Parts To Seq. Control #” tab in the “Manage Unified Task Sequence” page.

Ø Record/modify the following in the multiline.

Note: The Mfr. Part # and Mfr. # columns in the multiline appear and, the Part # column is not available, if the inventory process parameter “Enable Manufacturer Part # control in Transaction” for the category “Manufacturer Part #” is set as ‘1’ in the Logistics Common Masters component an the Part . Conversely, both Mfr. Part # and Mfr. # columns in the multiline do not appear and, the Part # column is available, if the inventory process parameter “Enable Manufacturer Part # control in Transaction” for the category “Manufacturer Part #” is set as ‘0’.

Part #

The part to which you want to associate the sequence control #.

The part you specify must be Active and valid as defined in the Part Administration component. Further, the type of the part must be “Component” or “Expendable”.

The part must be effective to at least one of the tasks mapped to the sequence control # in the “Map Tasks To Seq. Control #” tab.

Mfr. Part #

The manufacturer part # of the part to which you want to associate the sequence control number.

The type of the manufacturer part must be “Component” or “Expendable”.

Mfr. #

The manufacturer # of the part to which you want to associate the sequence control number.

Note: Both the manufacturer part and the manufacturer that you specify must be Active and a valid combination as defined in the Part Administration component.

Remarks

Additional information on part and sequence control # mapping.

Click the icon to open the “View Notes Information” page. This page displays the notes history for the part and sequence control # mapping till date.

The multiline displays the following.

Prime Part?	Indicates whether the part is a prime part for other parts.
Part Description	The short name/description of the part.
Created Date	The date on which the mapping for the part and the sequence control # was created.
Created By	The user ID of the employee who created the mapping for the part and sequence control #.
Last Modified Date	The date on which the mapping for the part and the sequence control # was most recently modified.
Last Modified By	The user ID of the employee who most recently modified the mapping for the part and sequence control #.

Ø Select the “Map Parts To Seq. Control #” pushbutton.

Mapping tasks to sequence control #

Ø Select the “Map Tasks to Seq. Control #” tab in the “Manage Unified Task Sequence” page.

Ø Record/modify the following in the multiline.

Task #

The identification number of the task that you wish to associate with the sequence control #.

The task that you specify must be

1. Must be “Active” and valid as defined in the Maintenance Task component.

2. Must not be applicable to an aircraft.

3. At least one of the parts associated with the sequence control # listed in the “Map Parts To Seq. Control #” tab must be effective for the task as defined in the “Edit Component Effectivity” page.

4. Further, in the Define Process Entities activity of the Common Master component, process parameters for the WBS code of the task that you wish to specify in this field must be set as follows:

§ The “Repair Scheme process parameter” must be set as ‘1’.

§ The “WBS Level" process parameter as ‘1’.

§ The "Allow Master Sequencing Definition?" process parameter must be set as ‘0’ for the WBS code of the task.

The multiline displays the following.

Task Description	The short name/description for the task.
WBS Code	The WBS code for the task.

Ø Record/modify the following in the multiline.

Remarks	Additional information on task and sequence control # mapping. Click the icon to open the “View Notes Information” page. This page displays the notes history for the task and sequence control # mapping till date.
Created Date	The date on which the mapping for the task and the sequence control # was created.
Created By	The user ID of the employee who created the mapping for the task and sequence control #.
Last Modified Date	The date on which the mapping for the task and the sequence control # was most recently modified.
Last Modified By	The user ID of the employee who most recently modified the mapping for the task and sequence control #.

Ø Select the “Map Tasks To Seq. Control #” pushbutton.

To delete a task from the sequence control #

Ø Select the box for the task that you wish to delete from the multiline.

Ø Select the icon above the multiline

The task as well as its related tasks (listed in the “Sequence Tasks” tab) is disassociated from the sequence control #.

To proceed

Ø Select the “Maintain Repair Scheme” link to record/modify details of the repair scheme associated with the task that you have selected in the multiline.

Sequence tasks for execution

Ø Select the “Sequence Tasks” tab in the “Manage Unified Task Sequence” page.

Ø Select the following:

Display Option

Use the drop-down list box to select the display option for records in the multiline. The drop-down list box displays the following: By Repair Sequence # and By Task. Select

§ “By Task” to display all related tasks of the tasks mapped to the sequence control # in the “Map Tasks To Seq. Control #” tab. in the order of the task #.

§ “By Repair Sequence #” to display all repair sequence #s for the sequence control # in the order of the sequence number.

Eliminate Duplicate?

Select the check box to disallow repetition of parts in the sequence.

This check box is enabled only if you have selected “By Repair Sequence #” as the display option.

Select the check box to display only one instance of the "Rep. Seq # and "Task #" combination against the sequence control #. To retrieve all repair sequence #s for the sequence control #, do not select the check box.

Ø Select the “Get Details” pushbutton to displays details of the sequence control # in the multiline.

Ø Enter the following in the multiline.

Rep. Seq. #

The sequence number for execution of the task on the part, Mandatory.

The repair sequence # you specify must be a positive integer.

This check box is enabled only if you select “By Repair Scheme #” as the display option.

The multiline displays the following.

Task #	The task related to the task mapped to the sequence control # in the “Map Tasks To Seq. Control #” page. Typically, these tasks are associated with WBS codes with process parameters § “WBS Level” set as ‘2’. § "Operation execution?" set as "1".
Parent Rep. Scheme #	The parent task of the related task.
Root Rep. Scheme #	The root task associated with the related task.
Task Desc.	The short name/description for the related task.
Operator #	The operator associated with the related task.
Parent WBS Code	The WBS code of the parent task.
Root WBS Code	The WBS code of the root task.

Note: Columns Parent Rep Scheme #, Parent WBS Code, Root Repair Scheme and Root WBS Code are available in the multiline only if you have selected “By Task” as the display option.

Repair Scheme Count	The number of times the task can be executed in the repair scheme. This column is not available, if you have selected “By Task” as the display option.
Remarks	Additional information on the master sequencing of tasks for the repair sequence #.
Orig. Seq. #	The repair sequence number of the task as set for the first time. This field displays value only if the repair sequence number has been modified at least once.
Exec. Phase	The execution phase of the task, such as Preparatory, Regular and Post Flight.

Ø Enter the following in the multiline.

Seq. Control?

Use the drop-down list box to indicate the requirement of sequence control for tasks. The drop-down list box displays the following: Required", "Not Required", "Across Phases" and "Within Phases".

Note: If the WBS code of the task has the "Sequence Control definition allowed?" process parameter set to "Yes”, you can set this field to “Required", "Across Phases" or "Within Phases". On the contrary, if this process parameter set to "No", you must set this field to only “Not Required”.

Seq. Modification

Use the drop-down list box to indicate whether sequence modification for tasks is allowed. The drop-down list box displays the following: "Allowed" and "Not Allowed".

The multiline displays the following.

Last Modified Date	The date on which the order of execution for tasks was most recently modified.
Last Modified By	The user ID of the employee who most recently modified the order of execution of tasks.

Ø Select the “Re-Sequence” pushbutton

Based on the multiplication factor specified in the Set Options activity, the system generates new repair sequence numbers in the “Rep. Seq. #” column. The system generates repair sequence numbers for some or all of the tasks.

Ø Select the “Update Seq. Number” pushbutton

The system saves the repair sequence numbers against the sequence control #. It also updates the repair sequence #s, if modified. If modified for the first time, the old repair sequence #s are saved in the Orig. Seq. # field. The Orig. Seq. # field retains these first time values and, further changes to the repair sequence # do not impact Orig. Seq. #s.

The repair sequence numbers for tasks are updated in the repair schemes of the root tasks.

To modify sequence control #

Ø Enter the following fields in the “Define Task Seq. Control #” group box to

Seq. Control #

The sequence control # for which you want to modify details. Mandatory.

The sequence control # you specify must be Active and valid as defined in this page of the Maintenance Task component.

Help facility available

Seq. Control Desc.

The short name/description of the sequence control # for which you want to modify details. Mandatory.

Status

Use the drop-down list box to select the status of the sequence control # that you wish to modify. The drop-own list box displays Active and Inactive.

Ø Select “Edit Existing Sequence Control #” radio button.

The available details of the sequence control # are retrieved by the system. To modify these details, follow the procedure explained for creation of sequence control #.