ML20080F325

Forwards Response to IE Bulletin 83-05 Re ASME Nuclear Code Pumps & Spare Parts Mfg by Hayward Tyler Pump (Htp) Co. Facility Does Not Use or Plan to Use Htp ASME Nuclear Code Pumps

ML20080F325
Person / Time
Site:	Mcguire, McGuire
Issue date:	08/31/1983
From:	Tucker H DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-SSINS-6820 IEB-83-05, IEB-83-5, NUDOCS 8309190266
Download: ML20080F325 (2)

Text

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DUKE POWER @MINy= {ilON 'I -

e.o.noxa&&o -N' JCIGIA CHARLOTTE, N.C. 28242 HAL H. TUCKER TELEPIEONE

=======-r August 31, (704) ara.4sa:

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l Mr. James P. O'Reilly, Regional Administre. tor U. S. Nuclear Regulatory Commission Region II 101 Marietta Street NW, Suite 2900 Atlanta, Georgia 30303 Re: McGuire Nuclear Station Docket Nos. 50-369 and 50-370 l 1

NRC/0IE Bulletin 83-05

Dear Mr. O'Reilly:

Please find attached Duke Power Company's response to NRC/01E Bulletin 83-05.

This bulletin concerns ASME nuclear code pumps and spare parts manufactured by the Hayward Tyler Pump Company.

I declare under penalty of perjury that the statements set forth herein are true and correct to the best of my knowledge.

The staff time required to assemble and document this information is forty-three hours. Due to inadvertent administrative delays this report is being submitted 11 working days late. We regret any inconvenience this may have caused.

Very truly yours, 0 dk, M al B. Tucker PBN:jfw Attachment cc: Mr. R. C. DeYoung, Director Mr. W. T. Orders Office of Inspection and Enforcement NRC Resident Inspector U. S. Nuclear Regulatory Commission McGuire Nuclear Station Washington, D. C. 20555 Document Control Desk U. S. Nuclear Regulatory Commission Washington, D. C. 20555 (Original Cover Letter / Report 8309190266 830831 PDR ADOCK 05000369 G PDR y {

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DUKE POWER COMPANY MCGUIRE NUCLEAR STATION RESPONSE TO NRC/0IE BULLETIN 83-05 Action 1:

McGuire Nuclear Station does'not use or plan to use ASME nuclear code pumps

• manufactured by' Hayward Tyler Pump Company (HTPC).

Actions 2 and 4:

The station has spare parts provided by the HTPC for use in the component cooling pumps and fuel pool cooling pumps. These pumps were manufactured by B&W Canada.

The spare parts at McGuire do not include shafts, impellers, wear rings or any other major components,1but are typically sleeves, collars, setscrews, bearings, couplings, and gaskets.

Duke Power Company is aware that some of these spare parts have been installed, but a detailed review of five years worth of work requests would be necessary to specifically identify the parts installed. However, there has been no problem with either pump and if the spare parts have been installed then the implementa-tion of the existing maintenance and performance procedures have precluded any problems.

No spare parts affect the pressure boundary of the pumps and only one spare part, the coupling for the component cooling pumps, could cause any operability concerns.

The other spare parts are of such a minor nature that they don't represent an operability concern.

The existing maintenance procedures for the component cooling pump corrective maintenance and the fuel pool cooling pump corrective maintenance identify distinctive steps to verify proper disassembly, part replacement or repair and assembly, including clearances and alignment.

After completion of any. work on the subject pumps the completed work request is ,

reviewed to determine if westing is required to verify operability. An example would be if a need to realign the pumps was caused then a vibration check would be performed. This, along with the existing maintenance and performance proce-dures described above which adequately address the recommendations of the bulletin, will preclude any problems when and if any as yet uninstalled spare parts are installed, as has been demonstrated by the lack of problems with parts already installed.

There has been no abnormal maintenance or operability problem with any of the subject pumps.

Pump reliability has been adequately demonstrated by:

(1) the two Train A component cooling pumps have been operated alternately with the two Train B pumps during successive weeks (typical each unit) since 1976 on Unit 1 and 1978 on Unit 2, without abnormal downtime.

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(2) the Unit i Train A fuel pool cooling' pump has betn operated alternately with the Train B pump during successive weeks since January 1981, without abnormal downtime, and the Unit 2 pumps successfully passed the required functional tests.

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