ML20052E671

LER 82-010/03L-0:on 820401,while at 100% Power,Svc Water Header a Removed from Svc to Repair Leak in Pipe Downstream to Reactor Bldg Closed Cooling Water HX Isolation Valve. Caused by Coating Failure.Leak Repaired

ML20052E671
Person / Time
Site:	Millstone
Issue date:	04/29/1982
From:	Duffy B NORTHEAST NUCLEAR ENERGY CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20052E660	List: ML20052E659 ML20052E671
References
LER-82-010-03L, LER-82-10-3L, NUDOCS 8205110324
Download: ML20052E671 (1)

Text

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LICENSEE EVENT REPORT CONT ROL DLOCK: l l l l l l]. (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 1 FlTl l Cl Tl MI NI Sl 2]gt 0 l0 l_10 l0t rCLl0N'.El0NUMUER l0 l_ l 0l 01@l 426 l 1LICENSE l 11i 1YPE l l 3 Jol@lb 7 L A T 58 jg 25 8 9 LICLt.stE COOE 14 15 D LON'T rOiil ;g'" l L l@l 0 }~5 j'0 l 0 [0 l 31316 f.8 69

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60 68 DO;K E T NUMBE R 9 8 EVENT DESCRIPilON AND Ph0B ABLE CONSEQUENCES O'o pq 27 [While at 100% power the "A" Service Water Header was removed from service to facilitate g ; the repair of a leak in the pipe downstream of the A Service Water Header to the Reacto ~ The facility I g gBuilding Closed Cooling Water Heat exchanger isolation valve, 2-SW-3.1A. Similar i g i operated for approximately 4 hours in accordance with T.S. A.S. 3.7.4.1. j g gevents: None. l O 7 l 1 80 FO l a j 1 7 8 9 COW ONENT CODE SUBCOdE S ODE C DE C(DE SUB E IW18 LW I A l@ [E j@ (JLj @ l P l I I P l E l X l 18X j@ 19l E l@ (20Zj @ 9 10 11 12 83 REVISION 7 OCCURRENCE HEPORT SEQUE NTI AL TYPE N O. REPORT NO. CODE LLR

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                   @ agg.RO I 81 2]                            [_j 24             26        27             28      h           30          31            32 21         22           23 F R b 8.         hPLIE            MAN FACTURER TE T b                    HOUHS            SB ITl D K N ACl O               ON PL

[Z_j@ T LZj@ l010l0l0l LfLj@ llj@ []Lj@ l44Dl 2l 410}@ 47 {_B_J@lZl@ 33 34 35 3G 37 40 41 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h by a coating failure l , [TTOl 1 A small leak developed downstream of 2-SW-3.1A. probably caused

                   ; and subsequent corrosion of the carbon steel. The A header was isolated and the leak 1

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        , ,        ;was repaired, via grinding and pad welding per approved station procedures,.

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A!rivi>Y Ca1E~1 LOCATION OF RELEASE HELEASED OF RELEASE AVOUNT OF ACTIVITY I l NA i o [ Zj @ [Zj@l NA l PERSONNtt ExPOSMEs NUueE a tvPE l i 7 1010101@LZj@otSCRiPTiON l NA @ PEnsONNE t INJUHIES NuveER otSCRIPTION@ l 7 i a 8 9 l0l0lOl@l 11 12 NA 80 TYPE DESC PT ON J i 9 [Zj@[ NA 80 8 9 10 NRC USE ONLY 8205110324 820430 IIIIIIIIIIIII:I 7 PustiCirY G eD DESCniPriON U PDR ADOCK 05000336 l issY4jbl S PDR 80 3 2 O [_ 68 69 7 8 9 10 NAME OF PREPARER .

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