05000334/LER-1980-049-01, /01T-0:on 800718,during Investigation Per IE Bulletin 79-14,determined That Support on Component Cooling Water Supply Line to 1A Residual Heat Removal Heat Exchanger Has High Probability of Failure During Seismic Event

From kanterella
(Redirected from ML19326D973)
Jump to navigation Jump to search
/01T-0:on 800718,during Investigation Per IE Bulletin 79-14,determined That Support on Component Cooling Water Supply Line to 1A Residual Heat Removal Heat Exchanger Has High Probability of Failure During Seismic Event
ML19326D973
Person / Time
Site: Beaver Valley
Issue date: 07/21/1980
From: Lacey W
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19326D967 List:
References
IEB-79-14, LER-80-049-01T, LER-80-49-1T, NUDOCS 8007250324
Download: ML19326D973 (1)


LER-1980-049, /01T-0:on 800718,during Investigation Per IE Bulletin 79-14,determined That Support on Component Cooling Water Supply Line to 1A Residual Heat Removal Heat Exchanger Has High Probability of Failure During Seismic Event
Event date:
Report date:
3341980049R01 - NRC Website

text

NRC F CCM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 771

,fm

(

)

LICENSEE EVENT REPORT v

CONTROL SLOCK: l l

l l

l l lh (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATION)

I 6

lo j i l l P 1 A l B l V l S l 1 l@l 0 l 0 l-l 0 10 l 0 l 0 l 0 l-l0 [ 0 l@l 4 l1 l1 l1 l1 l@l l

l@

7 8 9 LICENSEE CCCE I4 15 LICENSE NAidER h

26 LICENSE TY PE N 57 G A T id CON'T lolil

,"c','C " ' l L }@l 01510 l 0 l 0 l 3 l 3 l 4 @l 0 l 7 ; l j 818 l 0 @l0 l7 l2 l1 l8 l Ol@

7 4

60 61 DOCn ET NLMBER 64 69 EVENT CATE 14

?$

R(PORT Q ATE 80 EVENT CESCRIPTION ANO PACSASLE CONSEQUENCES h l o l 21 1 We have determined that a support on the component cooline water supolv line to the l Io lai l lA Residual Heat Removal Heat Exchanger has a high probability of failure during a l

Io Iei I seismic event. Failure of this hanger could cause loss of coolina water to the "A " l

("5"TTl I RHR train. A break at this location would be isolated by the containment isolation l l 016 l l Valves. The "B" train would be operable.

The consecuences would be minimal due to 1 i o,7 l l the availability of the "B" train.

I I

lofelI 80 7

8 9 SYSTEM

CAUSE

CALSE COMP.

VALVE CCCE CCCE SUS 0QCE COMPCNENT CCCE SUSCCCE SL8CCCE [7"lT) l Wl Bl@ [Bj@ l Cl@ l Sl Ul Pl 0l Rl Tl@ l Al@ l Zi@

)

8 9

10 et 12 13 14 19 20 SE QUE NTI AL CCCUARENCE REPCRT REVIS3CN L

EVENT YEAR R EPCRT NO.

CCOE TYPE N C.

O a=E A e AC l810 l l-l 10l4191 l/l 10111 ITI l-l LO.J s

, 21 22 23 24 26 27 28 29 30 31 32 LEV O'NPLANT

'7E HOU45 @ ^$ ShtY b

I

~

  1. ETN 'YTYCd U N CT RER PC t S.

SP T

A lFl@l2l@

lZl@

W@

l 010l 0l 0l l Nj@

l Nj@

l A l@

l Z l 9 l 9 l 9 l@

23 34 26 37 40 el 42 4J 44 47 CAUSE CESCRIPTION ANO COR AECTIVE ACTIONS l1 101 l This deficiency was determined durine an investi2ation resultine fron NRC Tr Bullerinl ii iii l79-14.

The support will be reinforced.

I Ii62l l l

t i l 31 l l

Li L I I I

F 4 9 80 STA 5

%PCWER CTHER STA TLS SCO Y

OiSCOVERY CESCRiPiiCN ITTsl I H l@ l0 l 010 @l Design l

lCl@l Operator observation l

j i

' AETIVITY CC TENT AMCv.TCSgACriviTY h toCAT:CN CP RELEASE Ii16I W @C SPaELE4SEl zl@l N/A I

I N/A I

P;ELsASE 7

a ?

10 ft 44 45 80 PERSCP.NEL ExPCS: RES NUM8ER TYPE OESCRIPTION lI7ll0l0lOj@lZl@l N/A l

PERSCNNEL N;LR ES Nuygga CE SCRIP TION li!>l1010101@l N/A I

F 4 9 11 12.

80 LCSS CP CR DAMaCE TO FACittTv tvPE C E SCRIP riCN fiTilLz.J@l N/A I

y a g to 60 ggsyg CN L2_LJ I N U@DESCRtPT l

N/A l

l?I!!l!!!!!!lI 7

4 9

!O 64 69 80 3 7

PHONE:

NAME OF P AE' TR 80072503N._._ _ _. _ _