ML19209C973

LER 79-061/03L-0:on 790917,various Snubbers on safety- Related Sys Found Inoperable.Caused by Low Fluid Level & Loose Pipe Clamps Leading to Snubber Clippage.Snubbers Positioned Per Plant Drawings & Tightened

ML19209C973
Person / Time
Site:	Brunswick
Issue date:	10/03/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19209C970	List: ML19209C968 ML19209C973
References
LER-79-061-03L-01, LER-79-61-3L-1, NUDOCS 7910180534
Download: ML19209C973 (1)

Text

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LICENSEE EVENT REPORT CONTROL BLOCK: l 1

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M lN 7 8 9 l C *lTCENSJE 1Bk' ODEP l 1 l@15l 0l 0l -lLICENSE 14 0l O! 0l O! O ~l0l0l@l4l1LICEs1l NUMBER 25 26 1l 1l@l$7 CAT SE TYPE JO l l@

$8 CON'T O 1 EnN l L l@l 0 l 5 l0 l- 10 l 3 l 682 l5 @l Ol 91 il 7l 7 9hl1l0 l0 l3 [7 l980 lg 74 75 7 8 60 61 DOCKET NUMBER 69 EVENT DATE FtEPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l O 121 lWhile performing PT 19.6.0.2, Visual Inspection of Accessible Snubbers on Safety l

@ l Related Systems, the following were found inoperable: 1) ISW-173SS175, service water l lTITl to discharge canal; 2) 1E11-18SS47, line from RHR heat exchanger to vessel; 3) 1C41- l l0lsl 9SS27, line from SLC pumps to vessel; 4) 1G41-1SS22, fuel pool cooling line to RHR; l 0 s l5) IG41-20SS76, fuel pool cooling recirculation line. I I O I 7 I lTechnical Specifications 3.7.5, 6.9.1.9b l 0 a l l 7 8 9 80 DE CODE SU8C E COMPONENT CODE SU8 CODE SU E 7

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., SEQUENTI AL OCCURRENCE REPORT REVISION LER/RO EVENT YEAR R EPOR7 NO. CODE TYPE N O.

@ REPOy l217l229l l_l 23 l 0l 6l 1l 24 26 y

27 0l3l lL g W 28 29 30 31 32 KN A O O PLANT M HOURS 22 58 i FOR 8. SUP Lt R MANUFACTURER Zl@ l36 Zl@ l 0l 0; 0l lNlg lY[g A lg l B 2l0l9lg lB 33 l@34Zl@ 35 37 40 41 42 43 44 47 CAUSE DESCRIPTION AP..> CORRECTIVE ACTIONS h i O l Snubbers ISW-173SS175, and IE11-18SS47 had a low fluid level. These snubbers were li li l l rebuilt with new seals and functionally tested. Snubbers IC41-9SS27. and IG41-ISS?C ITT q and 1G41-20SS76 had loose pipe clamps which allowed the snubbers to slip on their i g pipes. The snubbers were positioned per plant drawings and tightened. Testing of I g l snubbers will continue per Technical Specifications.

7 8 9 80 ST S  % POWER OTHER STATUS DIS RY DISCOVERY DESCRIPTION y W@ l 0l 0l 0l@lNA l l B l@l Periodic Test l A TIVITY CO TENT RELEASS.D OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE R W @ lZ l@l NA l lNA l PERSONNEL EXPOS ES NUMBER TYPF. DESCRIPTION ITTil*l 'O l 0 l 0 l@l z l@l NA l PERSONN E t iNauNiES ,

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