Windchill Risk and Reliability Desktop Help > Windchill Maintainability > Maintainability Support Files > Maintainability Task Library Files > Task Data Pane > Repair Types
Repair Types
As described in Task Data Pane, the repair type that you select determines the calculations in which the task is used. The following table describes the three repair types. For more information, see Maintainability Calculations.
Repair Type
Description
Corrective
When selected, the task is performed during corrective maintenance. Corrective maintenance tasks are used in most calculations including MTTR, MMH/OH, mean corrective maintenance time, and more.
False Alarm
When selected, the task is performed if a false alarm occurs. Type 1 false alarms are detected during normal operation but cannot be repeated during the fault isolation process. Type 2 false alarms are detected and isolated to a removable item when that item does not have an actual fault. The frequency of Type 1 and Type 2 false alarms is defined under Maintainability in the System file properties. For more information, see Maintainability System File Properties.
Preventive
When selected, the task is performed during preventive maintenance. Preventive maintenance tasks are used in MMH/OH, MMH/FH, and mean preventive maintenance time calculations.