ML19332G321

Responds to NRC Bulletin 89-002 Re Stress Corrosion Cracking of high-hardness Stainless Steel Anchor Darling Swing Check Valves.No Anchor Darling Model S350W Swing Check Valves in Use at Facility

ML19332G321
Person / Time
Site:	River Bend
Issue date:	12/12/1989
From:	Booker J GULF STATES UTILITIES CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-89-002, IEB-89-2, RBG-31934, NUDOCS 8912210057
Download: ML19332G321 (3)

Text

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r .[ December 12, 1989 4 g .y '. > ;-. -RBG- 31934

                                                                                                                                . File Nos. G9.5, G9.33.1
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4 1 Document Control Desk i Washington,10.04 20555. -, s y e N "i ' Gentlemen : ' c . %~ , River Bend Station - Unit 1

                                                                                                                        ' Docket No. 50-458

q NRC Bulletini89-02V t

                          ,                       LThis letter 1 provides Gulf-States. Utilities Company!s (GSU) response to. NRC                                               ;

w ' Bulletin 89-02,t:" Stress Corrosion JCracking .of High-Hardness Type 410 Stainless ' Steel <"Internali Preloaded . Bolting sin Anchor Darling.Model S350W-Swing Check ValvesLor'Valv'es of Similar Design".- 7

    ,             4                               lie subject bulletin requested licenseesof operating reactors to: disassemble-                                            !
       ,cm                                        ' and minspect allLsafety-related Anchor Darling Model S350W' swing check valves supplied with" internal: retaining block; studs of ASTM specification A193 Grade                                     ;<

JB6M Type- 410SS end review the design of other safety-related check valves to 't

determine if'similar designs and material- selection to the ' Anchor Darling.

                                                  - Model S350W are used.                                                                                                   _;
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GSU:.has. performed the requested review and'has determined that: 1

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s ;1'. Nol Anchor 3 Darling.Model S350W swing check valves are in use at River Bend' Station b . A , t

• Afreview of swing check valves _of:a;. design similar to Anchor. Darling

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4 / -ModeloS350W revealed that there are'no swing check' valves in use at River 3 Bend Station in which 'the internal.. retaining block bolts are made of ASTM e specification A193 Grade B6 Type 410SS.  ; f

               ;                                  . As : .a. result.of this review, GSU concluded that no check valve disassemblies

are required;in response to this bulletin. .

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                             ":6 If you have tny questions or require ' additional information, please contact
   ',                ;_                            'Mr.' L. L._- Dietrich of my staff 'atL (504) 381-4866.
                          ;g                                                                                                      Sincerely, 3412210057 891212 IPDR. ADOCK 05000458 o                                                  PDC                         --    *['                      4'          .,

J. E. Booker - Manager-River Bend Oversight A -u

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I , . ( . + i UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION 4 STATE OF LOUISIANA ) , PARISH OF WEST FELICIANA ) Docket-No. 50-458 , In the Matter of 4 ) GULF STATES UTILITIES COMPANY ) (River Bend Station . Unit 1) AFFIDAVIT J. E. Booker, being duly sworn, states that he is  ; Manager-River Bend Oversight for Gulf ' States Utilities Company; that he is authorized on the part of said company to sign and file with the Nuclear Regulatory Commission the , documents attached hereto; that he has read all of the statements contained in such documents attached thereto and made a part thereof; . and that all such statements made and matters set forth therein are true and correct to-the best of his knowledge, information and belief. d . f. /LA NJ . E. Booker Subscribed and sworn to before me, a Notary Public in and for the State and Parish above named, this /d2Y ~ day of N p O pm Aut , 19 b . My Commission expires with Life. , fh 01) N As .k N Notary Public in and for West Feliciana Parish, Louisiana

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