Appendix H: Planning, Scheduling, and Coordination of Maintenance Sample Less On Plan - Continued

DOE-STD-1050-93

instructions for equipment restoration and postmaintenance testing should be

included in the work order, and

a post-activity review of completed work documentation and an update to the

equipment history files.

b. Corrective Maintenance Backlog should be monitored to help ensure that important

jobs are not being unnecessarily delayed, and that management control is maintained

over the amount and type of work in the backlog. Corrective maintenance backlog is

an important indicator of how responsible the maintenance organization is to their

customers. If the customer, usually operations and/or fabrication, has to work around

defective or out-of-service equipment, then the overall operability of the site may be

compromised. The greater the amount of defective equipment and the longer the

equipment is left defective, the more significant that risk becomes.

c. A work priority sy stem is used to minimize the congestion of jobs that are important

to safe and reliable operations with those that are of less importance. An example of

a work priority sy stem includes the following:

Critical (C): Equipment or sy stems that shall operate greater than 90 percent of the

time. Being out of service for one working day may result in imminent and

significant environmental damage; potential to expose personnel to serious health

and safety damage, including injury or death; breach of security; or interruption

of production or experiment.

Urgent (U): Equipment, sy stems, or experiments important to plant goals and

which when out of service may result in a significant interruption of' production

or experiment. Importance is great enough to justify diverting personnel from

other assignments and to work overtime, based on realtime circumstances.

Required uptime is greater than 80 percent.

Priority (P): Equipment, sy stems, or experiments important to plant goals but

which have backup or redundant hardware. Required uptime is greater than 70

percent.

R outine (R ): Equipment, sy stems, or experiments not meeting one of above

categories which may be worked in most economical manner.

d. The effective coordination of maintenance activities requires plant wide adherence to

site work priorities, and timely support from other departments for items such as

permits, tagouts, and radiological protection coverage.

Discuss with the trainees the scheduling work sheet, a backlog report, and the work

priority sy stem. Emphasize a clear understanding of each item.

H-5