Document: NUREG-0800
Document ID: eedf1a7c-578e-463a-9608-b06af6312cf1
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1310/ML13108A095.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
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e modernization of control room HSIs, using computer-based technology as part of a digital instrumentation and controls (I&C) upgrade program. Such a program can result in substantial modifications to alarms, controls, and displays that are associated with structures, systems and components important to safety. The NRC also could review certain plant modifications involving changes to the FSAR as part of the change process described in 10 CFR 50.59, “Changes, Tests, and Experiments.” Guidance related to 10 CFR 50.59 is provided in Regulatory Guide (RG) 1.187, “Guidance for Implementation of 10 CFR 50.59, Changes, Tests, and Experiments,” and Nuclear Energy Institute (NEI) publication 96-07, “Guidelines for 10 CFR 50.59 Implementation.” 5. Important Human Actions This SRP chapter can also be used to review changes or modifications to licenses for nuclear power plants that include or result in changes to human actions. While HSI modernization may be a large-scale modification, even smaller-scale modifications may be risk-important, especially 18.0-3 Draft Revision 3 – July 2015 when they affect operator actions that are credited in the SAR or other accidents of high or moderate frequency which may not be analyzed in the SAR. An HFE review is conducted if such a modification affects the role of personnel or the tasks they perform, the sequence of actions, the timing, or the overall workload, and is potentially significant to plant safety. Modifications affect the role or tasks of personnel if they impose new or different demands on them to operate or maintain the plant, or otherwise ensure safety. An example of such a modification would be substituting manual actions for automatic actions for performing design functions described in the SAR (See Information Notice (IN) 97-78, “Crediting of Operator Action In Place of Automatic Actions and Modification of Operator Actions, Including Response Times.” for further guidance). The NRC may also review