The unique identifier assigned to the task. A default identifier is not assigned. You can enter any unique text string that you want to use.

Additional information about the task.

The unique value assigned to a task that has been inserted or updated from an RBD Maintenance Library file. If you enter a library identifier and click Update, the current task data is replaced with data retrieved for the library task. For more information, see RBD Maintenance Library Files.

When clicked, the library identifier specified in the property above is used to update the current task with data retrieved for the library task. For more information, see Updating a Task for a System File Block with Data for a Library Task.

Indicates the RBD Maintenance Library file for a task inserted from one of these library files. This property is display-only. It is completed when you update the data for a task with data from a library task, which is described above, or when you insert a library task. For more information, see Inserting a Library Task into a Block’s Calculation Properties.

Indicates whether to consider the task in RBD calculations.

Indicates if the task can be performed when the component is online. When this checkbox is selected, the task can be performed when the component is operating. When it is cleared, the task must be wait until the component is no longer in operation.

Indicates if the online component must be shut down to perform the task. When this checkbox selected, the component must be shut down before the task can be performed. When it is cleared, the task can be performed while the component is operating.

Indicates if the task can be performed while the component is in standby. When this checkbox selected, the task can be performed while the component is in standby. When it is cleared, the task cannot be performed until the component comes out of standby.

Indicates if inspections are performed to see if a failure has either occurred or is imminent. When this checkbox is selected, inspections are performed. When it is cleared, inspections are not performed. Selecting this checkbox makes properties available under Imminent failure detection.

The amount of time before a failure occurrence during which an imminent failure can be detected by inspection. The default is 0. The units for the value entered are supplied in the field to the right. Choices are Hours (default) and Percent of Lifetime. The component’s lifetime is the time from when it was put in service until the time it would have failed. When the percentage of lifetime is used, the detection time span value must be 0 to 100. For example, assume a reactor core melts down after running 1000 hours. If the detection time span is set to 100 hours, the melt down can be detected between 900 and 1,000 hours. A detection time span of 10% of the component’s lifetime is equivalent.

Indicates the task to perform when an imminent failure is detected. If Component is Repairable or Replaceable is selected on the Corrective Maintenance page in the block’s Calculation Properties window, the choice list includes None and Corrective Maintenance. The choice list also includes all periodic maintenance tasks inserted on the Maintenance page. For more information, see Maintenance Page. If the component being inspected is either in standby or is a spare and it has already failed, the selection for this parameter is ignored. In such a case, corrective maintenance is performed.