Post-Construction/ -Modification/ -Installation Assessments

DOE-STD-1073-2003

Configuration Management

7.5

Post-Construction/ -Modification/ -Installation Assessments

Following completion of construction, modification, or installation, the contractor should

perform inspections and tests to verify expected operation. Section 4.5.1.2 of

DOE O 420.1A requires contractors to test systems following modifications to ensure

that they continue to be capable of fulfilling system requirements. These inspections and

tests ensure that the system, structure, or component is installed as documented, meets the

design requirements, and is verified to be operable prior to being placed into service

initially or returned to service. This function prevents unintended changes from being

introduced through errors during design or construction. For physical changes, these

inspections and tests serve as a final and independent adequacy check of the design and

technical reviews for the change. If a changed SSC fails to meet its acceptance criteria, it

should not be turned over for normal operations until either a technical review has been

completed and any follow-up actions completed or the SSC is returned to its original

condition and tested satisfactorily. For the post-modification tests to be effective test

conditions should be consistent with normal and emergency operating conditions and

acceptance criteria should demonstrate that the applicable design requirements are met.

It is important to verify that inadvertent changes were not introduced during a

modification. Depending on the extent and complexity of a modification, and the degree

of work control, the contractor may need to perform inspections and tests on portions of

the nuclear facility that were not modified to properly verify the expected operation after

a modification.

7.6

Periodic Performance Assessments

As required by DOE O 433.1, Maintenance Management Program for DOE Nuclear

Facilities, systems, and components within the configuration management process must

be monitored and tested periodically to determine if they are still capable of meeting their

design and performance requirements. The process for performing this monitoring and

testing should be described in the Maintenance Implementation Plan (MIP) required by

DOE O 433.1. DOE G 433.1-1, Nuclear Facility Maintenance Management Program

Guide for Use with DOE O 433.1, provides information useful for developing and

implementing this monitoring program. Monitoring and testing may take the form of

surveillance actions, periodic in-service inspections and tests, and other monitoring of

systems and components to ensure safe and reliable operation of the facility. In addition

to observing direct results, derived results may include reliability assessment,

performance trending, and equipment aging characteristics. Contractors should use the

results of this monitoring to identify and avoid inconsistencies between functional and

performance requirements identified in the design and actual capability of systems and

components. In addition, contractors should use trending of data to detect degradation of

equipment due to aging or other causes.

By performing periodic performance monitoring, contractors should verify that selected

systems and components continue to be able to perform their intended functions (i.e.,

meet their design requirements). Contractors should correct any deficiencies identified

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