ML19340B279

RO 80-069:inadvertent Initiation of Safety Injection Signal Occurred But Did Not Result in Water Injection Into Rcs. Caused by Sys Lineups Utilized for Overpressure Protection

ML19340B279
Person / Time
Site:	Sequoyah
Issue date:	10/06/1980
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8010210727
Download: ML19340B279 (2)

Text

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TENNESSEE VALLEY AUTHORITY CH AT? %NCOGA. TENNESSEE 37401

, 1750 htnut Street Tower II

, October 6, 1980 Mr. James P. O'Reilly, Director U.S. Nuclear Pegulatury cewmissicm Office of Inspection and Enforcement Region II 101 Ma-ietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Hailly:

TE2R3'MR VALLEY AUIHORITY - SECUDYAH NUCLEAR PIMf UNIT 1 - DOCKET No. 50-327 - FACILITY OPERATING LICENSE DPR REPORTABLE Od.umICE REPORr SGO-50-327/8069 The subject reportable occt.utar.6 was telecopied to the NBC on June 3,1980, but no followup was sqliM. Evaluaticn by the Plant Operaticm3 Peview Ccrmittee determined that this occurrence was reportable under 10 CE'R 50.72 but was not resu.i.able under the Seqtryfah technical specificaticns.

'Ihis occurrence involved inadvertent initiaticn of safety injecticn signal, but did not result in the injecticn of water into the reacta.: coolant system due to the system lineups utiliwd for over pressure protection i

of the reactor coolant system in node 5. -

Very truly yours,

'IDECSSEC VALLEY AUHERITY J. R. Calhoun Director of Nuclear Power

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cc: Director Office of Management Informaticn and Program Ccntrol U.S. Nir ime Regulatory remmissicm Washingtcn, DC 20555 Director Office of Inspecticn and Enforcement l U.S. Nuclear Regulatory Ccmnissicn Washington, DC 20555 Mr. Bill Lava 11m Nuclear Safety Analysis Center Palo Alto, ralifornia 94303  %

V Mr. W. T. Cottle, NBC InWLul, Sequoyah I i

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U. S. NUCLEAR REGULATO]Y COMMISSION

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