Defining consumption and range parameters for a part

This activity allows you to add or modify the consumption and range parameters for the selected part. Tell me more.

Select the “Edit Consumption & Range Parameters” link at the bottom of the “Maintain Maintenance Info. For Part” or the “Select Part” page.

The “Edit Consumption & Range Parameters” page appears.

Note: This page can be invoked only for parts of type “Component”.

The system displays the following fields in the “Part Details” group box:

Part #	The part selected in the main page for which you wish to define consumption and range parameters.
Part Description	The textual description of the selected part.

Enter the following field if you wish to define new parameters for the part:

Parameter

The identifier of the parameter (Alphanumeric, 40). Ensure that the parameter is already defined in the “Create Parameters” activity and is of type “Consumption” or “Range”. You must enter the “Consumption” type parameter if the “Formula #” field is entered.

If the "Parameter Source" of the parameter is specified as 'Parent', then the parameter must be defined in the "Identify Inheritable Parameters" activity.

Help facility available.

The system displays the following fields on clicking the “Edit Parameters” pushbutton:

UOM	The unit of measurement of the parameter.
Parameter Type	The type of the parameter, which can be “Consumption” or “Range”.

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

Life Parameter	Use the drop-down list box and set the field to “Yes” to set the consumption parameter as the life parameter. The life parameter is a consumption parameter that indicates the life of the equipment. Select “No” if you do not wish to set the consumption parameter as the life parameter. The system displays “No” by default. Note You must set this field to “Yes” for at least one parameter or specify the Ultimate Life (Days) for the part in the “Retire Task Details” group box. The system lists only the “No” option in the drop-down list box, if the “LLP?” field is set as “No” in the “Maintain Maintenance Info. for Part” page.
Parameter Source	Use the drop-down list box to select the parameter source from which the value of the parameter must be updated. The system provides the options “Flight Log”, “Parent” and “Calculated”. The system displays “Parent” by default.
	Flight Log - indicates that the parameter value has to be updated from the flight log.
	Manual - indicates that the parameter value has to be updated manually.
	Parent - indicates that the parameter value has to be updated from the parameter source defined for the parent part.
	Calculated - indicates that the parameter value is updated based on the formula associated to the parameter. This formula depicts the mathematical relationship of the parameter with the participating parameters. When one or all the participating parameters are updated, the formula based parameter will be automatically updated.
	You must select the “Calculated” option in this field if you have entered the “Formula #” field.

Ensure that the Parameter source is selected other than “Calculated” for the following

i) If the component type of the part is “Engine” and if the parameters mapped to Base parameter “EH (Engine Hours) and EC (Engine Cycles) “are entered in the current business component.

ii) If the component type of the part is “APU” and if the parameters mapped to Base parameter “APUH (APU Hours) and APUC (APU Cycles) “are entered in the current business component.

iii) If the component type of the part is “Landing Gear” and if the parameters mapped to Base parameter “LC (Landing Cycles) “ is entered in the current business component

Range: From	The minimum number in the range of values for a range parameter (Decimal). Mandatory.
Range:To	The maximum number in the range of values for a range parameter (Decimal). Mandatory.
Average Daily Utilization	The average daily utilization for a consumption parameter based on which the forecast factor is calculated (Decimal). Data entry in this field is mandatory if the forecast factor and the formula ID are not specified.
Forecast Factor	The multiplication factor to forecast the maintenance activity (Decimal). Ensure that the forecast factor is specified only for a consumption parameter. Data entry in this field is mandatory if the average daily utilization and the formula ID are not specified. Leave this field blank for all parameters of type “Consumption”, if the “Lead Parameter” is left blank in the “Maintain Maintenance Info. for Part” page.
Ultimate Life Value	Enter the value identifying the life of the component if you have set the consumption parameter as the life parameter (Decimal). Data entry in this field is mandatory if the consumption parameter has been chosen as the life parameter.
Formula #	The formula to be associated with the consumption parameter (Alphanumeric, 20). Mandatory. The value of the consumption parameter is updated based on the formula entered in this field, if the “Parameter Source” is selected as “Calculated”. Ensure that the formula is already defined in the “Formula Builder” business component. Data entry in this field is mandatory if you have not specified the average daily utilization and the forecast factor.
	Help facility available.

Note: You can specify only one of the following values for a consumption parameter: the average daily utilization, forecast factor or the formula ID.

The system displays the following field on clicking the “Edit Parameters” button:

Formula Content	The contents of the formula entered in the “Formula #” field.
Parameter Description	The textual description of the parameter.

Enter the following fields:

Warranty Tracking	Use the drop-down list box to indicate whether the warranty tracking for the parameter is “Applicable” or “Not Applicable”.
Parameter Update	Use the drop-down list to Indicate whether parameter update is “Mandatory” or “Non-Mandatory” each time when the parameter is updated for the component.
Update Mode	Use the drop-down list box to select the mode on which the parameter value has to be updated. The system lists the following option:
	Delta – Select this option to indicate that the new parameter value is added with the existing parameter value.
	New – Select this option to indicate that the parameter value is overwritten by the new parameter value. The system sets the field to “Delta” by default.

Note: On clicking the “Edit Parameters” pushbutton, the system updates the value “New” in this field for the parameter of type “Range”, even if “Delta” option is selected.

Select the following in the “Retire Task Details” group box.

Note: This group box is displayed only if the part is a life limited life part and,

a) If maintenance program is not defined for the part.

b) If a part program exists though retire task is not defined in the maintenance program.

Retire Task #

The task that must be executed prior to phase out of the part.

The task you specify must be in Active status and it must be applicable to component or engine.

Ultimate Life (Days}

The textual description of the parameter.

Check the box in the “Select” column of the multiline to mark the parameters for deletion.
Click the Delete icon in the tool bar above the multiline, to delete the parameters selected in the multiline.
Click the “Edit Parameters” button to update the parameters for the part.

Note: The system updates the parameter details and attaches the parameters to the part only for those rows that are not marked for deletion. It also fills in the “UOM”, “Parameter Type”, “Formula Content” and “Parameter Description” fields. The system attaches the parameters that are defined for the component family to the part on clicking the “Edit Parameters” button.

The system does not allow you to define formula for the calculated parameter, on either of the following conditions:

If the formula contains a combination of Base Parameter and Summary Parameter, and if the Base parameter and Summary Parameter exist in current Model Consumption and range parameter.
If the formula contains a combination of Summary Parameter and Leg Level Parameter, and if the Summary Parameter and Leg level Parameter exist in current Model Consumption and range parameter.

Note:

Base Parameter is defined in the “Set Base Parameters” activity.
Summary Parameter is defined as a Parameter with Source Type set as “Flight Log”.
Leg Level Parameter is defined in “Maintain Flight Log Parameters” activity.

The system does not allow you to map the Parameter with Source Type as “Flight Log” as the following Base parameters: ‘Flight Hours’, ‘Flight Cycles’, ‘Block Hours’, ‘Flight Days’, ‘Landing Cycles’, ‘Engine Hours’, ‘Engine Cycles’, ‘Hobbs Meter Reading’.
The system updates the "Warranty Tracking" field as "Applicable" for those parts for which "On Warranty" check box is enabled in the “Maintain Planning Information” activity of the "Part Administration" business component.
For Life limited parts of type “Component” (LLP=”Yes” in the “Maintain Maint. Info for Parts” page), the system creates/updates part and component maintenance programs with the retire task details. More details

Defining consumption and range parameters for a part – An overview

This activity allows you to add or modify the consumption and range parameters for the selected part. You can define consumption and range parameters only for parts of type “Component”. You can add new parameters to the part by entering the parameter directly, or select a parameter using the help facility. The parameter source must be specified for the parameters that are attached, to indicate the source from which the value of the parameter can be updated.

You can specify the maximum and minimum range value for range parameters. For the range parameters that are already attached to the part, you can modify the parameter source and the maximum and the minimum range values.

For consumption parameters you can specify the average daily utilization, forecast factor or the formula ID, for forecasting the next maintenance activity of the part. You can also set the consumption parameter as a life parameter that indicates the life of the part. If the consumption parameter is set as the life parameter, you must define the ultimate life. For the existing consumption parameters that are attached to the part, the parameter source, average daily utilization, forecast factor, formula number and the ultimate life, if the parameter has been identified as the life parameter, can be modified.

Also, you can specify whether warranty tracking is applicable for parameter, whether the parameter has to be updated from the delta value or constant value and whether the parameter value update is mandatory for the parameter.

You can specify the retire task that must be executed prior to phase out of the part in this page. However, this is allowed only a) if the retire task is not already defined in the maintenance program for the part or; b) if maintenance program is not yet defined for the part. The system updates the existing part program with the retire task details or creates a part program with the retire task details, if the part program does not exist. The maintenance programs for components of such parts are updated or created based on the part program.

What you can do in this page

Set consumption parameter as life parameter

Define parameter source for parameter

Specify warranty tracking for parameter

Specify update mode for the parameter

Set consumption parameter as life parameter

You can set the consumption parameter as a life parameter, which indicates the life of the equipment. If the consumption parameter is set as the life parameter, you must define the ultimate life of the aircraft model.

Set the “Life Parameter” drop-down list box to “Yes”, to set the parameter as the life parameter and enter the ultimate life in the “Ultimate Life” field.
Set the “Life Parameter” drop-down list box to “No”, if you do not wish to set the parameter as life parameter.

Define parameter source for parameter

You can specify the parameter source, to indicate the source from which the parameter value must be updated.

Set the “Parameter Source” field to “Flight Log” to indicate that the parameter value has to be updated from the flight log.
Set the “Parameter Source” field to “Manual” to indicate that the parameter value has to be updated manually.
Set the “Parameter Source” field to “Parent” to indicate that the parent value has to be updated based on the parent (aircraft or component) value.
Set the “Parameter Source” field to “Calculated” to indicate that the parameter value is updated based on the formula associated to the parameter.

Specify warranty tracking for parameter

You can specify whether the warranty tracking is applicable for the parameters or not.

Set the “Warranty Tracking” drop-down list box to “Yes” if warranty tracking is required for the parameter.
Set the “Warranty Tracking” drop-down list box to “No” if warranty tracking is not required for the parameter.

Specify update mode for the parameter

You can select the mode on which the parameter value has to be updated which could be “Delta” or “New”.

Set the “Update Mode” drop-down list box to “Delta” to indicate that the new parameter value is added with the existing parameter value.
Set the “Update Mode” drop-down list box to “New” to indicate that the parameter value is overwritten by the new parameter value.