IR 05000327/1988020

Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-327/88-20 & 50-328/88-20.No Objective Evidence Present That Either Centrifugal Charging Pump Could Perform Safety Function

ML20154D676
Person / Time
Site:	Sequoyah
Issue date:	08/30/1988
From:	Richardson S NRC OFFICE OF SPECIAL PROJECTS
To:	White S TENNESSEE VALLEY AUTHORITY
References
NUDOCS 8809160046
Download: ML20154D676 (2)

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AUG 3 0 M Docket No ),50-328 License Nos. OPR-7 DPR-79 Tennessee Valley Authority

/TTN: Mr. S. A. White Senior Vice President, Nuclear Power 6N 38A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Gentlemen:

SUBJECT: NRC INSPECTION REPORT NOS. 50-327/88-20 AND 50-328/88-20 Thank you for your response of July C,1988, to our Notice of Violation issued on June 3, 1988, concerning activities conducted at your Sequoyah facility. We have evaluated vour response and found that it meets the requirements of 10 CFR 2.20 With respect to corrections and clarifications associated with admission of violation la, we acknowledge that the original violation incorrectly stated that centrifugal charging (CC) pump 288 was in the "pull-to-lock" positio This statement appeared 'n the notice of violation as a result of an error in editorial review. Regardless of the editorial review error, the actual assumption that the 288 CC pum) was not OPERABLE in accordance the unit's Technical Saecifications is still correct and the characterization of the notice of vdolation is unchange With respect to the additional information supplied in response to violation Ib, you stated that the event was conservatively reported as a four hour notification under the 10CFR 50.72.b.1.iii rule and that, according to NUREG-1022, Supplement 1, question 7.8, unrelated independent failures that did not actually occur should not be included in the evaluation if an event or condition is reportable under this rule. As stated above the 28B CC pump was not OPERABLE in accordance with the unit's Technical 5)ectfications because a post maintenance test had not yet been performed and tie 2AA CC pump wat in the "pull-to-lock" positio Therefore, at the time, no ob ective evidence was present that either pump could have performed its inten ed safety functio With respect to your statement that the 28B CC pump would have operated automatically if an engineered safety function actuation had occurred, there was no objective evidence prior to the performance of the post maintenance test that the 2BB CC pump would have automatically performed within the Technical Specification required acceptance limitations, regardless of the fact that the pump was being used to pump water during this even PDR ADOCK 05000327 O FDC l g JE l

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Tennessee Valley Authority 2 We will examine the irplementation of your corrective actions during future inspection

Sincerely, Originn1 "' -nd by Steven D. t.. -..ucsod Steven D. Richardson, Director TVA Projects Division, Office of Special Projects cc: p A. Kirkebo, Vice President, Nuclear Engineering

1. L. LaPoint, Acting Site Director Sequoyah Nuclear Plant JI; L. Gridley, Director Nuclear Safety and Licensing LM' Harding, Site Licensing Manager vTVA Representative, Rockville Office bcc:(Of G.b. Partlow, OSP Richardson, OSP dBlack,OSP W D. Liaw, OSP F. R. McCoy,0SP/R!!

K. P. Barr, OSP/RI!

J. B. Brady, OSP/Rll 9 7 Rutberg, OGC tNRC Resident Inspector DRS Technical Assistant NRC Document Control Desk State of Tennessee OSP/R!l OSP Y'

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