05000334/LER-1981-008-03, /03L-0:on 810112,low Pressure Alarm Received on Safety Injection Accumulator SI-TK-1C.Caused by Leaking Drain Valve.Pressure Restored Above Tech Spec Limit & Valves Will Be Repaired or Replaced During Next Outage

From kanterella
(Redirected from ML19351F939)
Jump to navigation Jump to search
/03L-0:on 810112,low Pressure Alarm Received on Safety Injection Accumulator SI-TK-1C.Caused by Leaking Drain Valve.Pressure Restored Above Tech Spec Limit & Valves Will Be Repaired or Replaced During Next Outage
ML19351F939
Person / Time
Site: Beaver Valley
Issue date: 02/11/1981
From: Lacey W
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19351F937 List:
References
LER-81-008-03L, LER-81-8-3L, NUDOCS 8102200535
Download: ML19351F939 (2)


LER-1981-008, /03L-0:on 810112,low Pressure Alarm Received on Safety Injection Accumulator SI-TK-1C.Caused by Leaking Drain Valve.Pressure Restored Above Tech Spec Limit & Valves Will Be Repaired or Replaced During Next Outage
Event date:
Report date:
3341981008R03 - NRC Website

text

.

~

r.

e um mm

' LICENSEE EVENT REPORT

' c$NTROL SLCCX: l !

I I

I l@

(Pt. EASE PRINr CR rYFE ALL ACCUt AED INFC AMATICN) i lo i s l l ? l A { 317 I S ! 1 !Q! O 10 l-10 lo 101010 l-1010 l@l'.11 11 11 Il l@lu ar w @

l l

4,

uce.sas ;;;6

.4 3

wcassa w veta a

s uctssa tvet
  • o CON" 1 i S I ! l@

lelij

,"c,"c[ j L @l 01 5 1010 10 13 f 3 f t. @l O ! 1! 11 21 81 1 @ l0 !? 11 f

' "3 3

4

.o si occm ar s.,.:4am u

o eve ~r car

<4

s secarcars so EVENT OEScall'*1CN ANO P AC9 A8LE CONSECuE'!CES h l o t ;! ! At 1130 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.29965e-4 months <br /> with the olant at 50 ocreent ocwor. a lev aressure alarm was received i l a i 2 ! l on the 1C Safety Inicction Accumulator {SI-TK-lC1 Plant oneration continued as perl 13 r a ! l Technical Snecification 3.5.1.

The health and safety of the nublic was not f

l a i s t l ieocar! iced si ec eniv two accumulators are recuired for adeounto coro contine in l

I a is i i the event of a loss of coolant accident. The remainine two accumulators were I

l i a i : i i canable of fulfilline this function.

l l3i4i !

30 7

5 3 C0va

,AuE SYST!u

CAUSE

CAtTE COOE C006 SLSCOCE 00.v7cNENr CCCE SueCO E 368COCE l143}

l9IU!

!E!

l3l l V l A l L l 7 I E l * !!

lPl lPl i

I 3

IJ t1 12 12

<d "3

g SE OU ENT1 A L CC
M sENCE AEFCAT
  • Evls40N ga,oc IVENT v t.a A 7ttPORr NC.

003G Tveg g g, h *(Lvesal 8l 1l l_l l0{Ol3l

],,, !

l013l lLl l_!

l 0l E 8"' 4 7 w

._ :i

s 24 4
s
s

.a a

si sea..ts

>=iu,f.v e a u c:unce.ssr sea ccut sum. a t

!=*t--

s uteews AT-ici-vest ac ten.

~u ac:wasa s

rax s-

  • cr< C %

cu atAsr vsrsco cuas ::

suavi cza

.v e.

su 010IOl0I

! Yl@

l ': !@

l Al@

(Vl0I3(5l@

(" @(P !@

[ l@

l~!@

j, cAuss sscoiP IcN An0 00F AEO'1VE AC-f C'dS :<)

of ji.26IThe crossure in [SI-TK-1CI was restored above the Technical Scecification limit j i 1!603 osig at 1:03 hours. The suscected cause for the low nressure is a leakine drain f i...!l valve. An investication to find the Icakinc valve or valves will oc tade durine the; t

iii;I!next curace and thev vill be renaired er renlaced as recuired.

l i

l li*4 i I y

, 3 91*uc3 08

  • TATUS

% 8C"AE9 QTh'(R sTAIL"5 Q G.4CuvCRY Ol500VtPv0E!:maring 10:

s ar t u ?v I:isj ivl@ l0l5l0l@l N/A l

l A f@l Control 'toon annunciator l

e u

n ACTiv e ?Y CONTES?

5 LOCATicN CF agtgAgg ]

m! '.i A S E 3 avCONr QF ACTIVITY lies!1:!f,CF*ELEASESI N/A

{

UA I

I.

v,,

=:

m e

o

., msw. e s,e.s.. es ss.

_ -,c

w.

~ g, i

i, i

1. 1. 0 i o ' c m_ l : Gl tur

~

u r

a

...se.s s < s.,s m 64I

  • .ugsa O t >41a.a f',N I

/ A i-ll0IOIO h, l i :

52

> +

n

~

, ;*.. O s *.n ? A.e s.* s * ) f40;.s*v,Q

... s.

m.,

o

,.,3,

.a

" = = "-

u. :3 s,. c 6 N/A

! ! ! ! !I iit * !.-

,';i"mi I

?

~

.a n.: :

v.-

.= -

c:-m-a a

.m w..t --,y, e,

810 220 05%

\\

l l

l 1

i Attachment To LER 50-0',/03L Seaver '.' alley Power Station Duquesne Light Company Decket No. 50-33'.

No further information is available or needed to satisfy the reporting requirement.

s


,,y-g-,c-.

.e,

,m