ML20248A058

Informs That Response to NRC Bulletin 88-004, Potential Safety-Related Pump Loss, Acceptable.Response Indicated Rev to CCW Sys Operating & Alarm Procedure Prior to Restart for Cycle 6 to Ensure That 4-hr Limit on Min Flow Not Exceeded

ML20248A058
Person / Time
Site:	Davis Besse
Issue date:	06/02/1989
From:	Wambach T Office of Nuclear Reactor Regulation
To:	Shelton D TOLEDO EDISON CO.
References
IEB-88-004, IEB-88-4, TAC-69906, NUDOCS 8906080049
Download: ML20248A058 (3)

Text

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'- r-3: L-M jb G. June 2, 1989-Docket No. 50-346 E DISTRIBUTION:

3Doctet M 1esg NRC & Local PDRs-

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PDIII 3"Wf" MVirgilio p- '

JHannon- TWambach-PKreutzer OGC-WF1

__ . .Mr.l Donald C. Shelton EJordan BGrimes Vice President - Nuclear ACRS(10)- PDIII.3 Gray Files Toledo Edison Company Edison Plaza _Stop J12

-300 Madison Avenue

Toledo, Ohio? 43652

SUBJECT:

RESPONSE'.TO NRC BULLETIN-88-04 (TAC NO. 69906)

. 0n May 5,'1988, the NRC staff issued NRC Bulletin 88-04, " Potential Safety-Related Pump. Loss." The bulletin requested _the evaluation of allt safety-

- related pumps:for 1)' pump-to-pump interaction during miniflow operation that could result in dead-heading.of one or more of the pumps, and 2) the adequacy of the minimum flow bypass lines with respect to damage resulting from opera - '

tion and testing in the minimum. flow mode. The bulletin also requested that ,

. within 60 days of receipt of the bulletin, licensees-provide a written response that (a) summarizes the problems and the systems affected, (b) identifies the short-term and long-term modifications to plant operating procedures or

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hardware that have been or are being implemented to ensure safe plant opera-

' tions, (c) identifies an appropriate schedule'for long-term resolution of this i and/or other si -

i bulletin,'and.(gnificant problems that;are identified as a~' result'of thisd) provides justific  !

with regard to General Design Criterion 35 of Appendix A to Title 10 of'the  !

Code'of Federal Regulations- (10 CFR Part 50), " Emergency Core Cooling" and 10

> CFR 50.46, " Acceptance. Criteria for Emergency Core Cooling Systems for Light Water Nuclear Power Reactors." Additionally, the staff requested that within 30 days ofscompletion of the long-term resolution actions, licensees provide-a written _ response describing the actions taken.

By letters dated September 8 and December 16, 1988 and April 14, 1989, you responded to Bulletin 88-04. Your response provided the information requested.

Your response also indicated a revision to the CCW System Operating and Alarm i Procedure prior.to the restart for cycle 6 to ensure that a hour limit on 3 minimum flow'is not exceeded. This fulfills your requirement in responding to  !

Bulletin 88-04.- '

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Mr. Donald C. Shelton '

As discussed in Bulletin 88-04,.you should document and maintain for at least 2 years an evaluation of your actions in responding to the bulletin. These

' records may be subject to future auditing.

Sincerely,

/s/

Thomas V. Wambach, Sr. Project Manager Project Directorate III-3 Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation ~ ]

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Office: LA/PDII)-3 PM/PDIII-3 PD/ D 11-3 Surname: P e JWambach/tg Hannon Date: $yitfbr/zS /89 6 / / /89 /{ /89

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'{: , a Mr. Donald C. Shelton- Davis-Besse Nuclear Power Station Toledo Edison Company Unit No. 1 L -cc:

David E. Burke,'Esq.

The Cleveland Electric Radiological Health Program Illuminating Company Ohio Department of Health.

P. O. Box 5000' 1224 Kinnear-Road

!- Cleveland, Ohio 44101 Columbus, Ohio 43212 Mr. Robert W. Schrauder' Attorney General Manager, Nuclear Licensing Department of Attorney Toledo Edison Company Genere.i Edison Plaza 30 East Broad Street

, 300 Madison Avenue Columbus, Ohio 43215 Toledo, Ohio 43652' Mr. James W. Harris, Director Gerald Charnoff, Esq. ( Addressee Only) ~ .

Shaw, Pittman, Potts Division of Power Generation

• and Trowbridge Ohio Department of Industrial Relations 2300 N Street N.W. .

2323 West 5th Avenue Washington, D.C. 20037 P. O. Box 825 Columbus, Ohio 43216 Regional Administrator, Region III U.S. Nuclear Regulatory Commission Ohio Environmental Protection Agency 799 Roosevelt Road 361 East Broad Street Glen Ellyn, Illinois Columbus,-Ohio 43266-0558 President, Board of Mr. Robert B Borsum County Commissioners of Babcock & Wilcox Ottawa County Nuclear Power Generation Division Port Clinton, Ohio 43452

. Suite 525, 1700 Rockville Pike Rockville, Maryland 20852- State of Ohio Public Utilities Commission Resident Inspector 180 East Broad Street U.S. Nuclear Regulatory Commission Columbus, Ohio 43266-0573 5503 N. State Route 2 Oak Harbor, Ohio 43449

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