ML19325C373

Responds to NRC Bulletin 89-002, Stress Corrosion Cracking of High Hardness Type 410 Stainless Steel Internal Preloaded Bolting in Anchor Darling Model S350W Swing Check Valves or Valves of Similar Design. No Such Valves in Svc at Plant

ML19325C373
Person / Time
Site:	Cooper
Issue date:	10/06/1989
From:	Kuncl L NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-89-002, IEB-89-2, NLS8900382, NUDOCS 8910160131
Download: ML19325C373 (2)

Text

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L GENERAL OFFICE Nebraska Public Power District i , , i i, -....3-.., ..

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-f O 'NLS89003825 October 6, 1989 U 3 Nuclhar Regulatory Commission Document Control Desk Washington, DC :20555

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Subj ect: - Response'to ERC Bulletin No. 89-02

. Cooper Nuclear Station

'NRC Docket No. 50 298/DPR-46

Reference:

NRC bulletin No. 89-02, " Stress Corrosion Cracking of

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High Hardness Type 410 Stainlos Steel Internal Preloaded Bolting In Anchor Darling Model S350W Swing Check Valves or Valves of Similar Design"

, Gentlemen:

As direcited by the referenced bulletin, the Nebraska Public Power District is p providing the following information regarding Anchor Darling Model S350W swing check valves and valves of similar design. Upon investigation, it has been p . determined' that no valves subject to NRC Bulletin 89-02 are in service at Cooper. Nuclear. Station. ,

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- If you have any questions regarding this response, or require any additional  !

information, please contact me at this office.

.Sincer ,

i L. G. Kunc1 15 Nuclear Power Croup Manager 1e l-

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. cc: Regional Administrator L' U.S. Nuclear Regulatory Commission 5 NRC Resident Inspector

(- Cooper Nuclear Station

i. 8910160131 891006 7 PDR ADOCK 05000298 li Q PDC l:

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. . F i U.S. Nuclear Regulatory Commission 3

, October 6, 1989 j Page 2 1

STATE OF NEBRASKA) ,

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PLATTE COUNTY vr )

L. G. Kunc1, being first duly sworn, deposes and says that he is an authorized

. representative of'the Nebraska Public Power District, a public corporation and _r political subdivision of the State of Nebraska; that he is duly authorized to submit this responsa on behalf of Nebraska Public Power District; and that the statements contained herein are true to the best of his knowledge and belief.

f bfG.Kunci Su e in my p m ence and sworn to before me this day of D/II'D;/JMA mamna C

- NOTARY /PUBLIC serComm.Em As4,19!s3 1

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