Entering Schedule details for engineering document

Entering schedule details for engineering document

This page enables you to enter the periodicity information for the selected engineering document. Tell me more.

Select the “Edit Schedule Information” link at the bottom of the “Edit Engineering Document” page.

The “Edit Schedule Information” page appears.

The system displays the following field:

Date Format

The format in which the date fields are to be entered in this page. This format is displayed from the "User Preferences" component based on the login user ID. In case the format is not defined, the system displays the date format from the “Enterprise Modeling” component by default.

The system displays the following in the "Eng Doc Details" group box:

Eng. Doc #	The engineering document for which the periodicity details must be entered.
Revision #	The revision number of the engineering document.
Subject	The textual description of the engineering document.
Schedule Type	The schedule type of the engineering document, which could be “One-Time” or “Recurring”.

Enter the following fields in the “Reference Schedule Details” group box:

Reference Basis	Use the drop-down list box for copying the schedule information. The system displays blank along with the following options: Complete Schedule – Select this option for copying the complete schedule information such as parameter, threshold interval, threshold value, repeat interval, negative tolerance, positive tolerance, alert value and terminating value, from the reference work unit. The schedule information of the reference work unit as available in the maintenance program will be copied to the engineering document work unit. Next Due – Select this option if you wish to copy only the next due date or value from the reference work unit as the threshold date or value for the engineering document work unit. The system leaves the field blank by default. If “Direct Execution” is marked as “Yes” for the engineering document, then the system leaves this field blank. Data selection in this field is mandatory, if the engineering document is applicable for “Component” or “Engine”.
Work Unit Type	Use the drop-down list box to specify the work unit type. The system lists the following options based on the engineering document applicability: If the engineering document applicability is “Aircraft”, the system lists the options “Aircraft Work Package”, “Component Work Package”, “Standard Procedure” and “Task”. If the engineering document applicability is “Engine” or “Component”, the system lists the options “Component Work Package”, “Standard Procedure” and “Task”. The system sets this field to “Standard Procedure” by default.
Maintenance Program #	The number identifying the aircraft maintenance program (Alphanumeric, 30). If a value is selected in the “Reference Basis” field, ensure that the maintenance program number is valid and in active status as defined in the “Aircraft Maintenance Program” business component. Data entry in this field is mandatory if engineering document applicability is “Aircraft” and if value exists in the “Reference Basis” field. Ensure that this field is left blank, if the engineering document applicability is “Engine” or “Component”. Help facility available.
Note: If the engineering document applicability is “Aircraft”, the specified maintenance program must be active, and all the aircraft associated to the engineering document should also be associated to that maintenance program.
Schedule #	The schedule number defined for the work unit (Integer). Data entry in this field is mandatory if the engineering document applicability is “Aircraft” and if a value is selected in the “Reference Basis” field.
Note: The system ignores the value specified in this field if the engineering document applicability is “Engine” or “Component”.
Work Unit #	The task, standard procedure, aircraft work package or component work package to be executed (Alphanumeric, 30). Data entry in this field is mandatory, if the engineering document applicability is “Aircraft” and if a value is selected in the “Reference Basis” field. Ensure the following based on the option selected in the “Work Unit Type” field: Task – The task must have been defined in the “Create Task” activity of the “Maintenance Task” business component. Standard Procedure – The procedure must have been defined in the “Create Standard Procedure” activity of the “Maintenance Task” business component. Aircraft Work Package – The aircraft work package must have been defined in the “Create Aircraft Work Package” activity of the “Aircraft Maintenance Program” business component. Component Work Package – The component work package must have been defined in the “Create Component Work Package” activity of the “Component Maintenance Program” business component. In addition, the work unit entered here should be in “Active” status. Help facility available.
Note: If the selected engineering document has Schedule type as “Recurring” and if the “Reference Basis” is selected as “Complete Schedule”, then ensure the following: a) If the engineering document applicability is “Engine” or “Component”, then the schedule type of the work unit must be “Recurring” as defined in the “Component Maintenance Program”. b) If the engineering document applicability is “Aircraft”, then the schedule type of the work unit must be “Recurring” as defined in the “Aircraft Maintenance Program”. If the engineering document applicability is “Engine” or “Component”, the specified work unit must be active and available in the component maintenance program of all the components associated to the engineering document. If the engineering document applicability is “Aircraft”, the work unit number and work unit type combination must be available in active status for the specified maintenance program and schedule combination.
Maintenance Type	Use the drop-down list box to specify the type of maintenance job that must be carried out as a part of the work unit. The system lists the options “Overhaul”, “Repair”, “Inspection” and “Others”. The system sets this field to “Others” by default.

Enter the following fields in the “Date Based Schedules” group box:

Time Unit	Use the drop-down list box to specify the unit in which the duration for executing the engineering document is specified. The system provides the options: “Days”, “Months”, “Month End” and “Year”. Data entry in this field is mandatory, if a value is available in any of the fields in the “Date Based Schedules” group box. The system leaves the field blank by default.
Threshold Interval	The interval at which the selected engineering document must be performed (Decimal). If the schedule type is “One-Time”, data entry in this field is mandatory. Ensure that the number entered here is positive.
Threshold Date	The date on which the engineering document must be performed, in the case of one-time engineering document (Date Format). The date entered in this field must be in the format specified in the “Date Format” field and should not be earlier than the current server date.
	If this field is left blank and the “Threshold Interval” is defined for the engineering document, the threshold date is calculated as: Threshold Date = “Threshold Interval” + “Effective From Date” If the “Effective From Date” is not available, the value is added to the Issue Date (if available) or engineering document Created Date. The “Time Unit” selected for the “Threshold Interval” along with the month wise and leap year wise disparities in the dates are also considered while calculating this date. The system verifies that the threshold date is not earlier than the current server date.
Repeat Interval	For engineering document of schedule type “Recurring”, data entry in this field is mandatory, if a “Threshold Interval” or “Threshold Value” is available for the engineering document. Ensure that the number entered here is positive. Leave this field blank, if a value is defined in the “Threshold Interval” field and if the schedule type is “One Time”.
Alert Value	The number of days by which the alert date of the engineering document is deferred (Integer). Ensure this is a positive value.
Positive Tolerance	The upper limit within which the engineering document is to be performed (Decimal). Ensure that the number entered in this field is positive.
Negative Tolerance	The lower limit within which the engineering document is to be performed (Decimal). Ensure that the number entered in this field is positive.
Terminating Value	The terminating value specified for the execution of engineering document in terms of days (Decimal).
Terminating Date	The terminating date specified for engineering document execution (Date Format) If you have left this field blank and entered “Terminating Value”, then the system calculates the terminating date by adding the terminating value to the ‘Threshold Date’.
Special Frequency Notes	Any additional remarks or notes pertaining to the periodicity (Alphanumeric, 2000). This field can contain the following information:
	Additional information to clarify frequency requirements other than a simple parametric or letter check limit.
	Additional "off-wing" requirement information for tasks that are applicable for engines.
	Method of compliance for conditional tasks, shop-accomplished tasks and crew accomplished tasks.

Note: If the “Threshold Date” field is left blank and the “Threshold days” is entered, then the system calculates the threshold date as explained below:

A) For Maintenance Change Request Based engineering document:

Threshold Days + Effective From Date

If Effective From Date is not available, the system will consider the MCR Issue Date. IF MCR Issue Date is not available, the system will consider the engineering document Created Date.

B) For Direct Engineering Document:

Threshold Days + Effective From Date

If Effective From Date is not available, the system will consider the engineering document created Date.

Note: If the “Reference Basis” field is set as “Complete Schedule”, then ensure that all the fields in the “Date Based Schedules” group box are left blank.

Enter the following in the “Parameter Schedule Details” multiline:

Note: If the “Reference Basis” field is set as “Complete Schedule”, then ensure that all the fields in the “Parameter Schedule Details” multiline are left blank.

Parameter

A number that identifies the consumption parameter in the aircraft or its component (Alphanumeric, 40). Mandatory. This parameter must be of type “Consumption” defined in the “Create Parameters” activity of the “Aircraft” business component. The periodicity of the engineering document will be decided based on the values of the consumption parameters. The parameter number should be unique in the multiline.

For the consumption parameter defined here, ensure that a value is available in either the “Threshold Value” or “Threshold Interval” field in the mutiline.

Help facility available.

The system fills in the following fields:

Parameter Description	The description of the parameter.
UOM	The unit of measurement of the parameter

Enter any one of the following fields:

Threshold Interval	The interval at which the engineering document must be executed for the consumption parameter (Alphanumeric, 28). Ensure that the number entered here is positive.
Note: The system calculates the parameter value at which the engineering document must be executed, by incrementing the specified Threshold Interval with the parameter value as on the "Effective From Date", "MCR Issue Date" or "Engineering Document Created Date".
Threshold Value	The maximum number of days or hours within which, the engineering document for the consumption parameter, is to be carried out (Decimal). If the schedule type is “One-Time” and if a value is entered in the "Parameter" field, data entry in this field is mandatory. Ensure that the number entered here is positive. For an engineering document of schedule type “One-Time”, ensure the following: The “Threshold Interval” must be specified either in the “Date Based Schedule” group box or in the “Parameter Schedule Details” multiline, if both the “Time Unit” and the “Parameter” are not defined for the engineering document. A “Threshold Interval” is defined in the “Date Based Schedule” group box, if a value is specified in the “Time Unit” drop-down list box. A “Threshold Interval” is available for each parameter defined in the “Parameter Schedule Details” multiline.
Note: Ensure that either “Threshold Interval” or “Threshold Value” is entered, for the parameter. Enter the following fields:
Repeat Interval	The interval in which, the engineering document for the consumption parameter must be repeated (Decimal). For engineering document of schedule type “Recurring”, data entry in this field is mandatory, if a “Threshold Interval” or “Threshold Value” is available for the engineering document. Ensure that the number entered here is positive. Leave this field blank, if a value is defined in the “Threshold Interval” field and if the schedule type is “One Time”.
Negative Tolerance	The lower limit within which the engineering document is to be performed (Decimal). Ensure that the number entered in this field is positive.
Positive Tolerance	The upper limit within which the engineering document is to be performed (Decimal). Ensure that the number entered in this field is positive.
Alert Value	The alert value of the parameter (Decimal). Mandatory. Ensure this is a positive value.
Terminating Value	The value of the consumption parameter based on which the engineering document will be terminated (Decimal).

Note: Ensure that atleast one parameter value is entered in the multiline.

Enter the following in the “Maintenance Program Details” group box:

Update Maint. Program Template

Use the drop-down list box to specify whether the program in Aircraft Maintenance Program (AMP) or Component Maintenance program (CMP) has to be updated or not. The system displays the following options:

If “Direct Execution” is marked as “Yes” for the engineering document, the system displays the option ”Not Required”.

If “Direct Execution” is marked as “No” for the engineering document, the system displays the following options:

If “Applicability” of engineering document is “Aircraft”, the system displays the options: “Model Program” and “Not Required”.
If “Applicability” of engineering document is “Component” or “Engine”, the system displays the options: “Part Program” and “Not required”.

This field is set to “Not required” by default.

Add to work package #

The number identifying the work package in AMP that has to be updated with the latest engineering document changes. The work package number entered should have already been defined in the “Aircraft Maintenance Program” business component. The system will update the identified work units in the engineering document to the Work Package, if specified.

Help facility available.

Check the box in the “Select” column of the multiline to mark the periodicity detail for deletion.
Click the Delete icon provided in the toolbar above the multiline, to delete the periodicity details selected in the multiline.
Click the “Edit Schedules” pushbutton to update the periodicity details.
The system calculates and updates the compliance date for the newly added entities as the earliest date among the schedule dates computed for the date-based and usage-based work units.
If the engineering document applicability is “Engine” or “Component”, and if the “Work Unit #” field is left blank, then the system ensures that there exists at least one work unit in in the component maintenance program with the same maintenance type as specified in the “Maintenance Type” field.
The system calculates the schedule date and triggering parameter for the work units based on the date and/or usage-based schedules defined for the work units and based on the “Time Unit” defined for the engineering document. If the schedule date is calculated based on the usage-based schedules, then the system considers the threshold value / threshold interval.
If the engineering document applicability is “Aircraft” and if the “Direct Execution” is marked as “Yes”, the system updates the calculated schedule date and the triggering parameter in the central planning / component pending tray.
The schedules given in the “Edit Schedule Information” page will be updated in the “Initailize Eng. Doc. Schedules” page.

The system calculates and updates the schedule date for each task as follows:

If Engineering Document “Applicability” is Aircraft

For date based schedule

Calculation of Next Schedule Date = Based on the threshold days.

For usage based schedule (Threshold Value)

Calculaton of Next Schedule Date = (The value identified in Threshold Value – Present value of the Parameter) /,(Average value)

Note: Average value for the parameter = Forecast factor * The lead parameter of the aircraft.

Note: The Next Schedule Date is calculated based on each parameter value in the usage-based schedule information and the earliest of all the Next Schedule dates is considered as Next schedule date of the task.

Note: The 'Next Schedule Date' or 'Next Schedule Value' will not be computed for tasks for which the 'Conditionally Evaluated?' field is set as "Yes" in the ‘Edit Task Information’ page.

To proceed, carry out the following:

Select the "Initialize Eng. Doc. Schedules" link at the bottom of the page to initialize engineering document schedules.
Select the “Release Eng. Doc.” link at the bottom of the page to release the engineering document.

Entering periodicity details for engineering document – An overview

This page enables you to enter the periodicity information for the selected engineering document. You can define schedules for one-time or recurring engineering document. In the case of one-time engineering document, you can specify the maximum number of days or hours within which the engineering document has to be executed. In the case of a recurring engineering document, you can specify the interval in which the engineering document must be repeated.

You can also define the schedule for the engineering document to be performed at the consumption parameter level.

The system updates the periodicity details and sets the last modified date to the server date.

What you can do in this page

Enter date based schedule details for engineering document

Enter parameter based schedule details for engineering document

Enter date based schedule details for engineering document

In the “Date Based Schedules” group box, enter the maximum number of days within which the engineering document must be performed in the “Threshold (Days)” field, if the schedule type of the engineering document is “One time”.
Enter the threshold date.
Enter the days within which engineering document must be repeated, if the schedule type of the engineering document is “Recurring”.
Enter the “Terminating Value (Days)” and “Terminating Date” fields to indicate engineering document termination details.

Enter parameter based schedule details for engineering document

Enter the parameter code in the “Parameter Schedule Details” multiline.
Enter the threshold value, repeat interval and terminating value of the consumption parameter in the multiline.