Part 21 Report - 1997-830

ACCESSION #: 9711030239 Illinois Power Company Clinton Power Station P.O. Box 678 Clinton, IL 61727 Tel 217 935-5623 ILLINOIS Fax 217 935-4632 POWER John G. Cook An Illinova Company Senior Vice President U-602855 4F.140 October 29, 1997 Docket No. 50-461 10CFR21.21 Document Control Desk Nuclear Regulatory Commission Washington, D. C. 20555 Subject: 10CFR21 Interim Report 21-97-042: Discrepancies Between General Electric Boiling Water Reactor (BWR) Design Requirements Documents and System Vendor Manuals Dear Madam or Sir: On August 21, 1997, Illinois Power (IP) identified a discrepancy between the General Electric (GE) Boiling Water Reactor (BWR) design requirements 22A5604, "Turbine-Generator Control Requirements GE-Nuclear Energy Division," and the field line-up instructions contained in GE vendor manual K2804-0007C, "GEK-64903, Volume III, Steam Turbine- Generator (EHC and TSI Section)." The specific discrepancy identified was a difference between the GE BWR Design Requirements document and the system vendor manual for the specified closing rate of the turbine control valves. Condition Report (CR) 1-97-08-183 was initiated to track an investigation of this issue. On August 27, 1997, during investigation of CR 1-97-08-183, IP determined that conflicts may exist between other GE BWR Design requirements documents and the system vendor manuals. Condition Report (CR) 1-97-08-303 was initiated to track an investigation of this issue. This issue was determined to be potentially reportable under the provisions of 10CFR21 on September 2, 1997. IP's evaluation of this condition under 10CFR21 has not yet been completed. IP does not have a firm date for resolving this issue but will provide, as a minimum, an update on the resolution progress by December 18, 1997. U-602855 Page 2 Additional information about this issue may be obtained by contacting K. E. Moore, Plant Engineering, at (217) 935-8881, extension 3598. Sincerely yours, J. G. Cook Senior Vice President RSF/krk cc: NRC Clinton Licensing Project Manager NRC Resident Office, V-690 Regional Administrator, Region III, USNRC Illinois Department of Nuclear Safety INPO Records Center General Electric Sargent & Lundy *** END OF DOCUMENT ***

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