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Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

Part 21 Report - 1997-407

ACCESSION #: 9707150340 Interim Report (97-006) Subject: Interim report of evaluation of a deviation pursuant to 10 CFR 21.21(a)(2) Inadequate Confirmation of 17 x 17 HTC Correlation to 15 x 15 Design Identification of Basic Activity: EXEM/PWR ECCS Evaluation Model Basic Activity Supplied By: Siemens Power Corporation - Nuclear Division Nature of Deviation: SPC did not adequately confirm the conservatism of scaling of the HTCs from 17 x 17 data to 1505 data. This was a self-discovered item as part of the LBLOCA assessment arid certain confirmations were performed. Also, the NRC concluded during NRC Inspection 99900081/97-01 additional benchmark work should be performed to validate the scaling methodology. Discovery Date; May 13, 1997 Corrective Actions to Date: Nonconformance report (NCR 6160) was prepared and processed by the management review team as required by SPC-ND's Quality Assurance Manual, EMF-1. Project definition is proceeding and will be documented as part of a response to the NRC inspection report. Evaluation Completion Schedule Date: September 15, 1997 *** END OF DOCUMENT ***

Page Last Reviewed/Updated Wednesday, March 24, 2021

Page Last Reviewed/Updated Wednesday, March 24, 2021