United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9711030239

                                             Illinois Power Company

                                             Clinton Power Station

                                             P.O.  Box 678

                                             Clinton, IL 61727

                                             Tel 217 935-5623

ILLINOIS                                     Fax 217 935-4632


                                             John G.  Cook

An Illinova Company                          Senior Vice President



                         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.


                                                       Page 2

     Additional information about this issue may be obtained by

contacting K. E. Moore, Plant Engineering, at (217) 935-8881, extension


                                        Sincerely yours,

                                        J. G. Cook

                                        Senior Vice President


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


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