ML19320A886

LER 80-015/03L-0:on 800604,leak Found in HPCI Steam Supply Line.Caused by Thermal Cycling During Normal Operation, Weakening Small Section of Fillet Weld.Hpci Sys Taken Out of Svc,Weld Ground Out & Welded.Sys Returned to Svc

ML19320A886
Person / Time
Site:	Quad Cities
Issue date:	06/26/1980
From:	Kopacz J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19320A879	List: ML19320A878 ML19320A886
References
LER-80-015-03L-04, LER-80-15-3L-4, NUDOCS 8007080172
Download: ML19320A886 (1)

Text

$:RC PD.IM 366 U. S. NUCLEAR REGULATORY COMMISSION '

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LICENSEE EVENT REPORT n*

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lh (PLEAsE PRINT OR TYPE ALL REQUIRED INSORMATIONI lo til8-9 I il LI ol Al Ol 2 l@! 14 0 l 0 l 0 l - l 0LICENSE 15 l 0 l NUM8ER 0 l - l 0 l 0 l 0 23l@l264l 1LICENSE l1l1 TYPE l

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7 LICENSEE CODE CON'T 10111 gj l L l@l 01 5 l 0 l 0 l 0 l 2 l 615 l@l 0 l 6 l o 1418 1074l@l0 75 16REPORT12 16 OATE 18 l080 l@

? 8 60 61 OOCKET NUVS ER 68 63 EVENT OATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10 # 21 l While performing a lighting survey a leak was found on the HPCI steam supply line l lO 1a i l downstream of the outboard primary containment isolation valve M0-2-2301-5 The l l O j .: i l leak was traced to a fillet weld which connects a 3/4 inch test tap sockolet to the l lO ls t i 2305-10" HPCI steam line. Isolation of primary containment and the HPCI turbine and l lO g l l pump operability were not degraded. The HPCI system was taken out-of-service for l

[O l7 [ l repairs in accordance with T.S. 3.5.C.3 I I

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• $E CO E SLSC E COMPONENT CODE SUB OE S E 10191 I s i F lh Wh (,, _ lh I P l l I P l E I X l X lh [Ajh (Z,_l 20 h

7 8 9 to 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REVISION EVENT YEAR REPORT NO. CODE TYPE N O.

LER Ougg/RO 1810 l a l-j l 01 il 51 Ld 1013i Lt_1 1-1 10 I

,,,,2 8 22 23 24 26 27 28 29 30 31 32 Kr AC ON ONP T M TH HOURS S8 IT FO B. SUP LtE MANUF C RER l 1 B I@[,_j@ z l3321@ Lzj@ l01010101 LN_j @ lNl@ W@ lXl91919l@ 44 3J 34 36 31 40 di 42 43 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h lil0ll A lack of fusion was found in a small section of the fillet weld which connects the l 1: #il l test tap sockolet to the HPCI stsam line. Thermal cycling during normal operation I

,,,.,i l. caused the weakened area to fall. The HPCI system was taken out-of-service at 12:55 l

, ;3gl p.m. on June 4, and the weld was ground out and re-welded. The HPCI system was l gl returned to service at 9

30 p.m. 80 l

7 8 9 ST S  % POWER OTHER STATUS IS Y OISCOVERY DESCRIPTION NA Operational Event l

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A IVITY C TENT RELE ASED OF RELEASE A4tOUNT OE ACTIVITY LOCATION OF RELEASE l lc3l9 {Z] Q ygl ,

to 11 NA 44 l l 45 NA 80 l

PERSONNEL EXPOSURES NUWlE R TY8E DESCR18 TION l i l > l 1 01 0 l O l@l z lgl- l

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It 1.ll0l0l0l@l NA l 7 4 3 11 12 - 80 LOL OP OH DAMAGE TO FACILITY TY8L DESCRIPTION

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NA l 68 69 lllllllll1llJf 80. ;;

-S00 N NAME OF PHEPARER J. Kopacz PHONE: 309-654-2241. ext. 178 E,

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