ML19207C267

LER 79-027/01T-0:on 790817,noted That Recent Pipe Hanger Installation Power Operated Relief Valve Cooling Water Lines Would Have Prevented Proper Installation of Pipe Spools. Caused by Pipe Ends Changing Alignment

ML19207C267
Person / Time
Site:	Fort Saint Vrain
Issue date:	08/31/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19207C268	List: ML19207C267
References
LER-79-027-01T, LER-79-27-1T, NUDOCS 7909100575
Download: ML19207C267 (1)

Text

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. LICENSEE EVENT REPORT (PLEASE PRINT OR TiPE ALL REQUIRED INFORMATION)

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DATE 7 8 60 61 DOCK ET NUMB E R EVENT OESCRIPTION AND PROB ABLE CONSEQUENCES h 0 2 lOn August 17, 1979, while operating at app roximate lv 50% of rated power it was deter- l 0 3 l mined that a recent pipe hanger installation on the PCRV cooling water lines would l 0 4 l have prevented proper installation of pipe spools to the high temperature filter ad-O s I sorber coolers. These are required to be installed and operable within 1 1/2 hours ofl 0 s lan extended loss of forced circulation. This does not meet the recuirements of Fort j 0l7 lSt. Vrain Technical Specifications LCO 4.2.18 and is reportable per AC 7.5.2(a)S. I I

a s i SYSTEM CAUSE CAUSE COMP. VA LV E CODE COOE SUSCODE COMPONENT CODE SUSCODE SUSCOOE O 9 I Cl s l@ Is j@ lC [@ l Sl Uj Pl 0l Rl Tl@ A[@ g @ 20 7 8 9 10 11 12 IJ 18 19 SEQUENTI AL CCCURAENCE REPORT REVISION gg m .RO EVENT YE AR REPORT NO. COOE TvPE N O.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i 0 [ Hanger additions to the system pioing caused the oice ends to change alignment and l lij1 l l =ade the spool pieces inoperable. The spool pieces were modified to fit on the  !

, ml available purification train and will be modified on the other train af ter it is re- l There was no affect on public safety or health.

3 l moved f rom service.

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