ML19257B997

LER 79-113/03L-0:on 791219,during Reactor Startup,Rhr Torus Suction Valve F004C Found Shut During Shift Turnover,Causing RHR Pump to Be Inoperable.Caused by Failure to Manually Return Valve to Correct Position After Shutdown Cooling

ML19257B997
Person / Time
Site:	Brunswick
Issue date:	01/14/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19257B995	List: ML19257B994 ML19257B997
References
LER-79-113-03L, LER-79-113-3L, NUDOCS 8001220522
Download: ML19257B997 (2)

Text

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LICENSEE EVENT REPORT CONTROt stOCx- l 1

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LICENSEE CODE 14 15 LICENSE NUMdER 25 2G LICENSE TYPE Jo l

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60 61 68 60 EVENT OATE 74 75 REPORT DATE 80 7 DOCK ET NUMBER EVENT OESCRIPTION AND PROB A8LE CONSEQUENCES h o 2 1 During a normal renctor startup while in condition 2. the m torus suction v,19e I o 3 1 F004C was found shut during a shift turnover. This valve beine closed caused the I o 4 l IC RHR pump to be inoperable in the LPCI mode. The valve motor on this valve %d I

.d out and the breaker was under clearance, thus removine position indication I o 5 i uct I

o 6 l from the control room.

o 7 Technical Speciff m tion 1.5.1.2 6_9.1 oh i l

l o a i so SYSTEM CAUSE CAUSE COMP VALVE CODE CCCE SUBCOCE COVpONENT CODE SUSCODE SU8COCE 7

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lClFl@ lA @ l A l@ l VI Al Ll Vl El xlh l Elh W h 9 10 11 12 13 18 19 20 SE CUE NTI A L CCCU R R E *:C: REPORT R EVISION EVENT YE AR REPORT No. CCOE TYPE No.

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44 47 CAUSE DE3CRIPTION AND CORRECTIVE ACTICNS i o ] The F004C valve was i= mediately apened. The operator had failed to have the valve j i i manually returned to its correct position when shiftine out of shutdown coo'i~ l

, y l The following actions have been or will be performed to prevent recurrence: l

, 3 l (1) The operator involved was counselled by the Shift Operating Supervisor as to l i 4 1 the necessity to follow procedures and assure operability of all portions of (Cent'd)l 80 7 8 9 ST S SPCWER CTHER STATUS IS V RY DISCOVERY DESCRIPTION Operator Surveillance i 5 W@ d 0] 4l@l ' '

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l A$nVITY CO TENT RELEASE LoCATroN OF RELEASE fits 1 z l @o OF RELEASEtz.j@l

'O AMOUNT N/A OF ACTIVITY 44 l

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7 8 9 1t PERSONNEL E*POSURES NUVSER TYPE DESCRIPTICN i 7 10101 Ol@lz l@l N/A l

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LOSS oF CR OAMAGE To F ACILITY TYPE DE SCRIPTION 1 0 [;.,jhl 10 N/A Jgo 7 6 9 e

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Lue.J LdUE81 i$$ DE SCRIPTION N/A 1/84 012 i 68 69 i i ii i i iiiiiin P0 5 1 8 3 10 NAME OF PREPARER A. C. Tollison. Jr. AiCNE. 919-457 o521 ',

8001220

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LER CONTINUATION -- R04 1-79-113 Facility: BSEP Unit # 1 Event Date: 12-19-79 safety related systecs.

(2) This has been reviewed with all Shif t Operating Supervisoru by the Operations Manager.

(3) All Shif t Operating Supervisors will review this event with their personnel.

(4) An Operating Instruction has been prepared to provide shif t turnover check sheets for the control operator, the shift foreman, and the shift operating supervisor. This will help assure that unusual system conditions are detected.

(5) A procedure will be developed to mark (tag) the control switch on the RTGB for all components where remote indication is lost due tu a motor, breaker, or similar problem. The actual component will be similarly marked (tagged) to assure that the position and the indication correspond.

(6) GP-1 has been revised to require a sign-off that shutdown cooling valves are in the proper position for a reactor startup.

(7) GP-1 will be revised to require a sign-off that all ECCS valves which have motor or breaker problems have been physically checked for position prior to a reactor startup.

1784 013

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