ML19290C977

LER 80-004/03L-0:on 800114,following Performance of Class I Shock Suppressor Surveillance Test,Two Snubbers Found Inoperable.Caused by Personnel Using Snubber Units as Stepping Platforms.Snubbers Repositioned

ML19290C977
Person / Time
Site:	Fort Saint Vrain
Issue date:	02/12/1980
From:	Gahm S PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19290C972	List: ML19290C971 ML19290C977
References
LER-80-004-03L, LER-80-4-3L, NUDOCS 8002150277
Download: ML19290C977 (1)

Text

NRC FORM 366

• U. S. NUCLEAR REGULATORY COMMISSION (7 774 LICENSEE EVENT REPORT CONTROL BLOCK: l 1

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(PLEASE PRINT OR TYPE ALL REQUIREO INFORMATION) 7 o 1 8 9 l Cl 0l Fl Sl V 1l@l010l-l010l0l0l0l-l0l0l@l4 1l1l2l0I@l LICENSEE CCCE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE J0 57 CATSd l@

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61 CoCKET NUMSER 68 69 EVtNT DATC 74 75 REPORT D*.TE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCIS h o 2 Following performance of Class I shock suppressor surveillance test, two snubbers I o a were determined to be inoperable due to reservoirs being rotated below snubber valvea /l o 4 l cylinders. Reactor critical for training was the only reactor operation that occurred l o Is I during in te rval . Condition interureted as deeraded mode of LCO 4.3.10 and reportable I o e lper AC 7.5.2(b)2. No accocoanving occurrence. No affect on public health or safety. l o dI l ola l I 7 8 9 30 SYSTEM CAUSE CAUSE COMP. VALVE CCCE COGE SUSCODE COMPONENT CODE SUSCOCE SUSCCCE r

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8 9 10 11 12 13 18 19 20 SEQUENTI AL OCCURRENCE REPORT REVIS!ON EVENT YEAR REPORT NO. CCCE TYPE NO.

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, 21 22 23 24 26 27 28 29 30 31 32 TAK N A TC ONP NT VE HOURS S 3P I FCR B. SUPPLIE MANUFA RER lXl@lZl@ Zl@ lZ!@ l0l0l0l0l lv l@ l42N l@ lZl@ l Z l 9 l 9 l 9 l/g 33 34 5 36 31 40 41 4J 44 47 CAUSE CESC41PTION ANO CORRECTIVE ACTIONS h i o l Rotation of reservoirs being attributed to oersonnel cerformine work on eauioment I i i adiacent to snubbers and usine snubber units as steooine platform. Th is loosened I i ,

[ lock nuts cnd allowed reservoirs to rQtate. Snubbe rs recositioned, surveillance testI t i3 l revised, and personnel reminded. I i 4 l 1 7 8 9 80

$A 4 POWER OTHER STATUS IS RY OISCOVERY DESCRIPTION t

5 l lG l@ l 0 I O l 0 l@l N/A l l A l@[ Personnel Observation l ACTivtTY CO TENT A2 LEASED OF RELEASE AMCUNT OF ACTIVITY LOCATION OF RELEASE N/A 7

1 5}3 9l Z @ l Zl@ lQ l N/A tt 44 45 80 l

PERSONNEL EXPChuRES NUMBER TYPE CESCRIPTION 1 7 l0 l0 l0 l@lZ l@lN/A l PERSONNEL NJLRIES NUMBEA OESCRIPTION i

a4 I9l 01 01 0l@l12N/A l 7 11 80 LCSS OF CR DAMAGE TO FACILITY TYPE C ESC RIPT'ON i 9 lZ l@l N/A a n o o i e: n , o r. l 7 3 1 10 30 DE C9tPT'CN

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