Part 21 Report - 1997-831

ACCESSION #: 9712240065 Illinois Power Company Clinton Power Station P.O. Box 678 Clinton, IL 61727 Tel 217 935-5623 ILLINOIS Fax 217 935-4632 POWER An Illinova Company John G. Cook Senior Vice President U-602894 4F.140 December 18, 1997 Docket No. 50-461 10CFR21.21 Document Control Desk Nuclear Regulatory Commission Washington, D. C. 20555 Subject: 10CFR21 Final Report 21-97-042: Discrepancies Between General Electric Boiling Water Reactor Design Requirements Documents and System Vendor Manuals Dear Madam or Sir: Illinois Power (IP) notified the NRC in 10CFR21 Interim Report 21- 97-042 (IP letter U-602855) dated October 29, 1997, that an evaluation under 10CFR21 was in progress regarding discrepancies between the General Electric (GE) Boiling Water Reactor (BWR) design requirements and system vendor manuals. The evaluation has been completed and IP has concluded that this issue is not reportable under the provisions of 10CFR21. The interim report stated that on August 21, 1997, IP identified a discrepancy between the GE 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 engineers 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. The design document discrepancy issue was determined to be potentially reportable under the provisions of 10CFR21 on September 2, 1997. U-602894 Page 2 The scope of the generic issue involved documents supplied by GE under specification K2801 which define the requirements for interface between GE supplied equipment and equipment supplied by others. The Architect-Engineer (AE) for Clinton Power Station was responsible for identifying specific requirement specifications and including them in purchase specifications for the equipment suppliers. IP has concluded that this issue is not reportable under the provisions of 10CFR21. The basis for this conclusion is the review of the AE's program for controlling this process. Additionally, the AE's program was previously audited by GE. To provide further confidence of program effectiveness, IP reviewed a sample of GE requirements for safety-related or Technical Specification-related equipment and did not identify any failures of vendor supplied implementing drawings to meet the GE design requirements. The AE's program is considered to have been effective in identifying specific requirement specifications and including them in purchase specifications for the equipment suppliers. Further, the specific discrepancy between the GE BWR Design Requirements document and the system vendor manual for the specified closing rate of the turbine control valves would have no impact on a safety function and therefore would not create a substantial safety hazard if it had gone uncorrected. Additional information about this issue may be obtained by contacting W. L. Shurlow, Engineering Projects, at (217) 935-8881, extension 3223. 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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