ML20245A238

Advises That Fulfills Licensee Requirement in Responding to NRC Bulletin 88-004, Potential Safety-Related Pump Loss

ML20245A238
Person / Time
Site:	Maine Yankee
Issue date:	06/14/1989
From:	Sears P Office of Nuclear Reactor Regulation
To:	Frizzle C Maine Yankee
References
IEB-88-004, IEB-88-4, TAC-69933, NUDOCS 8906210164
Download: ML20245A238 (2)

Text

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,a L June:14'.1989 . ,

j g Docket;No.-50-309' d

' Mr. C.'D. Frizzle, President  !

Maine _ Yankee Atomic Power Company 4

83 Edison Drive  !

Augusta, Maine 04336 i i

Dear Mr.' Frizzle:

l

SUBJECT:

RESPONSE TD NRC BULLETIN 88-04<(TAC 69933) 4 On' May 5,1988, the NRC staff issued NRC Bulletin 88-04, " Potential Safety- j D Related Pump Loss." The bulletin requested'the evaluation of all' ]

' safety-related pumps for 1) pump-to-pump interaction during miniflow operation -1 that could result 1n dead-heading of one or more of the pumps and 2) the adequacy of the minimum flow bypass lines with respect to damage resulting i from operation and testing in_the minimum flow ~ mode. The bulletin also requested that within 60 days of receipt of the bulletin,111censees provide' a writtea response that (a) summarizes the problems and the systems affected, n

-(b) identifies the short-term ard long-term modifications to plant operating ]

procedures or hardware that have been or are being implemented to ensure safe J plant operations, (c) identifies an appropriate schedule-for lor.g-term '

resolution of this and/or other significant problems that'are identified as a result of this bulletin, and (d) provides justification for continued' operation particularly 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 of completion of.the long-term resolution actions,-that licensees provide a written. response describing the actions ta ken.

By letter dated July 7,1988, you responded to Bulletin 88-04. Your response provided the information requested in'a, b, c, ard d above. Your response also described the long-term resolution actions and identified a completion date of December 31, 1989 for those actions. This fulfills your requirement in responding to Bulletin 88-04.

As . discussed in Bulletin 8L-04, you should document and maintain- for at least two years an evaluation of your actions in responding to the bulletin. These-records may be subject to future auditing.

Sincerely, Distribution: 4 9eislu W E H e NRC 5 Local PDRs PSears MRushbrook RWessman T. Alexion 13E21 /g/

Ofbf Patrick H. Sears, Project Manager Project Directorate'I-3 Division of Reactor Projects I/II cc: See next page '/t NYCAT.3 Gqn51 TAC 69,93)M lP OFC: PDI-Q p :PDI-3  :  :  :

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. Mr.'C. D. Frizzle Maine Yankee Atomic Power Company Maine Yankee Atomic Power Station l

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Mr. C. D. Frizzle, President Maine Yankee Atomic Power Company Mr. P. L. Anderson, Project Manager 83 Edison Drive Yankee Atomic Electric Company Augusta, Maine 04336 580 Main Street Bolton, Massachusetts 01740-1398 Mr. Charles B. Brinkman Mr. G. D. Whittier, Manager o Manager Washington Nuclear Nuclear Engir.eering and Licensing

' Operations Maine Yankee Atomic Power Company Combustion Engineering, Inc. 83 Edison Drive 12300 Twinbrook- Parkway, Suite 330 Augusta, Maine 04336 Rockville, Md. 20852 John A. Ritsher, Esquire Ropes & Gray 225 Franklin Street

' Boston, Massachusetts: 02110 State Planning Officer Executive Department 189 State Street Augusta, Maine 04330 Dr. E. T. Boulette, Vice President Operations and Plant Manager.

Maine Yankee Atomic Power Company P. O. Box 408 Wiscasset, Maine 04578 Mr. J. H. Garrity, Vice President Licensing and Engineering Maine Yankee Atomic Power Company 83 Edison Drive Augusta, Maine 04336 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 First Selectman of Wiscasset Municipal Building U.S. Route 1 .

Wiscasset, Maine 04578 I Mr. Cornelius F. Holden Resident Inspector c/o U.S. Nuclear Regulatory Comission P. O. Box E Wiscasset, Maine 04578

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