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 Controlled Usage Rate

Use

Since maintenance resources – such as work stations, machines, or personnel – are limited, it is necessary to distribute periodic maintenance tasks evenly over a year for all the aircraft within a maintenance cycle. The use of aircraft must be monitored to ensure that too many maintenance tasks are not due at the same time. This operation is known as controlled usage rate .

In the Controlled Usage Rate application (transaction /ISDFPS/LMCUS1), you can display maintenance-relevant data in a table or graphical overview, and navigate to the detail views.

Features

Data Selection

You select the data in the Select Technical Objects application. On the selection screen, you can use the properties from the equipment or master equipment , maintenance plan, and revision as selection criteria. You can also set filters for characteristics and characteristics lists.

In the Selection Profile field, you specify the selection profile to be used. You define the selection profiles in Customizing in the Controlled Usage Rate section of the IMG activity Configure Selection Profiles (transaction /ISDFPS/CLMCUS).

You can set the data selection for the Controlled Usage Rate application by using variants. To do so, choose Start of the navigation path Goto Next navigation step Variants End of the navigation path . For more information, see the documentation for the Select Technical Objects program .

Overview Table

The selected data is displayed in table form in an ALV grid, or as a diagram if you choose the Graphic View pushbutton. You can change the display of the table and graphic to meet your requirements by choosing the Change Layout pushbutton.

Data from the following areas can be displayed:

  • Technical objects with measuring points

  • Maintenance plans

  • Measurement documents

  • Revisions

In addition, information from the field catalog is available that you can show or hide by changing the layout, for example:

  • Sort Field

    Customer-specific field.

  • Remaining Days

    Days until the next maintenance of the aircraft.

  • Remaining Counter Value

    Value indicating how long the aircraft can still be used for until the next maintenance date.

  • Optimum Curve/Trend Curve

    Ideal usage rate.

  • Value <…>

    Numerical value of property in question.

  • Text <…>

    Labeling of the individual bars in the graphical representation.

Navigation

You can go from the Controlled Usage Rate application to several other applications. The following pushbuttons are available for navigation:

  • Technical Object

    Takes you to the Display Equipment application.

  • Maintenance Plan

    Takes you to the Display Maintenance Plan application.

  • Revision

    Takes you to the Display Revision application.

  • Measuring Point

    Takes you to the Display Measuring Point application.

  • Measurement Document

    Takes you to the Display Measurement Document application.

  • Application Log

    Takes you to the Display Log application.

Customer-Specific Adjustments with Business Add-Ins

Two Business Add-Ins (BAdIs) are available for your specific enhancements of the Controlled Usage Rate .

  • You can use the BAdI Controlled Usage Rate: Extend ALV to Include Customer Fields (/ISDFPS/LM_CUS_ALV_BADI) to extend the output list and the field catalog to include customer-specific fields.

  • You can use the BAdI Controlled Usage Rate: Extend GUI Status (/ISDFPS/LM_CUS_MENU_BADI) to extend the menu to include customer-specific commands.

In Customizing, choose Start of the navigation path Defense Forces& Public Security Next navigation step Support for Flight Operations Next navigation step Business Add-Ins End of the navigation path .

Activities

An aircraft is ready for a flight. The actual counter reading is stored in the measurement document. The measurement document is assigned to the highest-level functional location (in the master equipment).

  1. You select the aircraft in the Controlled Usage Rate application.

  2. The aircraft is deployed.

  3. The system determines the remaining flying hours.

  4. The remaining flight time is calculated by subtracting the current value on the flight hours counter from the planned flying hours allowed until the next periodic inspection.

    • If there are enough remaining flying hours for a flight, the aircraft is ready for the next flight.

    • If there are not enough remaining flying hours for a flight, the aircraft is scheduled for inspection.

  5. Maintenance is carried out for the aircraft, if necessary.

The aircraft is ready for the next flight.