ML20050B356

LER 82-013/03L-0:on 820316,containment Bldg Spray Header 21 Inadvertently Isolated by Closing Valve 2-SI-315.Caused by Auxiliary Bldg Operator Error.Operator Counseled

ML20050B356
Person / Time
Site:	Calvert Cliffs
Issue date:	03/25/1982
From:	Wenderlich R BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20050B352	List: ML20050B351 ML20050B356
References
LER-82-013-03L, LER-82-13-3L, NUDOCS 8204050242
Download: ML20050B356 (1)

Text

NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION o LICENSEE EVENT REPORT CON TROL BLOCK: l 1

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S[n$ l L @l 630] 5 l 0DOCKET f>0 l 0 l NUVBER 013 l 1 l 868l@l690131 i l 6 l 8l 2 l@l 7b0 l 3REPORT EVENT DATE 14 l 2 l DATE 5 l 8 l 280 l@

EVENT DE SCRIPTION AND PROBABLE CONSEQUENCES h gl During normal power operation at 2118 while performing surveillance i o 3 l testing, an Operator inadvertently isolated #21 CTMT spray header l l o j 4__j l (T.S. 3.6.2.1). Intending to shut 1-SI-315, #11 CTMT spray header iso- l l n l ,, l l 1ation valve, an Operator mistakenly shut 2-SI-315, #21 CTMT spray head- l o 6 l cr isolation valve. The valve was immediately re-opened at 2119. The l J lO lil l Operator remained in the vicinity of 2-SI-315 while it was shut. l loIsl l Similar events: none. l 80 7 8 9 SYSTEM CAUSE CAUSE COYP. VALVE CODE CODE SUBCODE COMPONENT CODE SUSCODE SUBCODE f

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47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h li j ol l The cause of this event was insufficient attentiveness on the part of I i i i the Auxiliary Building Operator. This Operator has been counselled on I g,i2l l the need to exercise a high degree of concentration while performing l lij3l l plant evolutions. Additionally, all Operators will be informed of the l

, 4 l details of this event. l 7 8 9 80 ST S NPOWER OTHE R STATUS 015CO RY DISCOVERY DESCRIPTION li l 5 ] (_Ej@ l 1 l 0 l 0 l@l NA l lAl@l Operator Observation l ACTIVITY CONTENT RELE ASED OF RELE ASE AVOUNT OF ACTtVITY LOCATION OF RE LE ASE l 1 l 6 l [_Z_j @ [Z,_j@l NA l l NA l PERsoNsEt ExeOsOES NuveEn TvPE oEScRiPTiON O l 1 l 7 l l O l 0 l 0 l@l Z l@l NA l

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LOSS OF OR DAMAGE TO F ACILITY TYPE DESCHIPTION

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