United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9712150019



NRC Operations Center

U.S.  Nuclear Regulatory Commission

Washington, D.C.



Attachment to Siemens Power Corporation - Nuclear Division 10 CFR Part 21

Report Fuel Cycle and Materials Event Notification Worksheet/NRC Form

361A) of December 10, 1997



10 CFR Part 21 Notification of Defect Relative to Transient Analyses at

Exposures Prior to End of Cycle



During the evaluation of the potential defect identified in Reference 1,

it was determined that the operating limits for LaSalle Unit 2, Cycle 8

could have been exceeded during operation at low power, high flow, and

with certain equipment out-of-service.  Note that startup for Cycle 8 has

been delayed until the Fail of 1998.  Therefore, the plant has never

operated under the conditions analyzed.  Commonwealth Edison has been

notified of this defect and has been provided with revised limits.



Additionally it should be noted that the impact on other potentially

affected licensees was evaluated.  It war concluded that ail other

operating limits supported by SPC analyses remain applicable.



Ref. 1: Letter, JS Holm (SPC) to Document Control Desk, "Interim Report

of Evaluation of a Deviation Pursuant to 10 CFR 21.21 (a)(2)," dated

October 16, 1997.



GENERAL INFORMATION or OTHER                 EVENT NUMBER: 33377



LICENSEE: SIEMENS POWER CORPORATION     NOTIFICATION DATE:  12/10/97

    CITY: RICHLAND       REGION: 4      NOTIFICATION TIME:  11:07 [ET]

  COUNTY:                 STATE: WA     EVENT DATE:         10/16/97

LICENSE#: SNM-1227    AGREEMENT: Y      EVENT TIME:         12:00[PST]

  DOCKET:                               LAST UPDATE DATE:   12/10/97



                                             NOTIFICATIONS



                                        JAMES CREED         RDO



NRC NOTIFIED BY: LOREN MAAS

HQ OPS OFFICER:  DOUG WEAVER            VERN HODGE          NRR



EMERGENCY CLASS: NOT APPLICABLE

10 CFR SECTION:

CCCC 21.21          UNSPECIFIED PARAGRAPH



                               EVENT TEXT

PART 21 - POTENTIAL TO EXCEED OPERATING LIMITS AT LASALLE UNIT 2



SIEMENS ORIGINALLY NOTIFIED THE NRC OF THIS ISSUE WITH AN INTERIM

REPORT

DATED 10/16/97.  FURTHER EVALUATIONS OF THE INTERIM REPORT HAVE

IDENTIFIED THE OPERATING LIMITS FOR LASALLE UNIT 2, CYCLE 8 COULD BE

EXCEEDED AT LOW POWER, HIGH FLOW, AND WITH CERTAIN EQUIPMENT

OUT-OF-

SERVICE.  THE STARTUP FOR CYCLE 8 HAS BEEN DELAYED UNTIL OF THE FALL

OF

1998.  THEREFORE, THE PLANT HAS NEVER OPERATED UNDER THE CONDITIONS

ANALYZED.  COMMONWEALTH EDISON HAS BEEN NOTIFIED OF THIS DEFECT

AND HAS

BEEN PROVIDED WITH REVISED LIMITS.



THE IMPACT ON OTHER POTENTIALLY AFFECTED LICENSEES WAS EVALUATED. 

THE

LICENSEE CONCLUDED THAT ALL OTHER LIMITS SUPPORTED BY SPC ANALYSES

REMAIN

APPLICABLE.



*** END OF DOCUMENT ***



Page Last Reviewed/Updated Thursday, March 29, 2012