Operation with Partially Implemented Changes

DOE-STD-1073-2003

Configuration Management

interrupted implementation, an analysis should be developed and reviewed and approved

by the design authority as soon as possible after the interruption is identified.

5.5.6.2 Operation with Partially Implemented Changes

The design authority must approve partially implemented changes prior to operation.

Documents should be updated and distributed for partial implementation consistent with

the process for documents for uninterrupted implementation. The design engineering

review should confirm that the original technical review is still valid or indicate that a

new technical review is completed and approved.

5.5.6.3 USQ Reviews for Partially Implemented Changes

The contractor should determine if a USQ review is needed prior to operation in the

interrupted condition. The contractor must use the requirements of 10 CFR 830.203 and

the DOE-approved USQ procedures to determine if a USQ review is required.

5.5.7

Implementing Multiple Changes in Parallel

Another area where the contractor must pay particular attention is the parallel

implementation of two or more changes that affect or involve the same structure, system,

or component. In such cases, a single person, such as the Cognizant System Engineer,

should be assigned to oversee the implementation of all changes being made to the

system, structure, or component. In addition, the change control packages should note

any parallel changes that are being made to the system, structure, or component and any

restrictions or limitations on the order of activities from the multiple changes. The

individual assigned to oversee the multiple changes should also sign all field change

notices for any of the parallel changes.

The design analysis for the change must consider any parallel changes and the level of

completion of the change prior to return to operation of the system, structure, or

component.

5.6

Post-Modification Testing

The quality assurance provisions of 10 CFR 830.122 require contractors to validate work

before implementation and perform acceptance testing. The change control package

should specify the post-modification testing to be performed and the acceptance criteria.

Post-modification testing validates that the system or component performs as intended

and operates within the design requirements after the change is installed and before

turnover to operations. These tests serve as the final and independent check of the

adequacy of the design review for the proposed change.

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