ML19316A631
| ML19316A631 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 02/24/1972 |
| From: | Van Niel C US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Peltier I US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8001130149 | |
| Download: ML19316A631 (1) | |
Text
.-
i O
Febrta ry 21, 1972 4
I. A. Peltier, NR Branch f*, DE THIU:
D. Tho:rpsen, Chief, OSB, DE EEVIN OF FINAL SAFE 1T /dALYSIS IEPORT FOR THE OCONEE NUCLEAR STATION UNIIS 2 & 3 (IXXZET NOS.
% -270 & 50-287)
I have conducted a review of the FSAR for Ocones 2-3 in the areas of Conluct of Operations, ani the Aininistrative Controla section c2 the Technical Specifiestions. The encicsure identifies the additional information that vill be required of the applicant in crder to cc:splete i
I the review in these areas.
Y C., R. Van Niel i
Operational Safety Branch, DE
Enclosure:
Additicnal Information Ibgaested cc:
D. J. Skovholt, DE A. Schwencer, DE i
)
i OrrtCE >
..k.
- _RI, 0.S Jh;.jg_,,
C
'ffel:lb DThotipson l
/1M 1.....2/2 /72#'
.'...r f
~4~
om, Form AEC-3ts lRev.9 53) AECM 0240 f.u s covtnws ? pamtm onet sero _.or m
$.00)q
U. $. NUCLE A R R E GULAT oRY CCuus ag,g
(
\\
NaC f onu xs EXHIGIT A (1<11l LICENSEE EVENT REPORT l
IPLEASE PRINT OR TYPE ALL REculatD IN8oRVAf t0N)
.h CoNII'OL block: l l
l l l l
{f_h] l S I Cl N1 E l El 2]@s.0 \\ 0 \\ -l0 l0 l 0 ] 01 Ol-l 0l0 l@=4 l 1l 1l1 l 1 j@{
,, c, s. @
l l
a uco.s. n..
2.
ac.~,.~u oc,~s.. coo.
i.
0] 5 l 0 l 0 l 0{2 l 7 l 0 ]@l0 l 4 l 0 l 7l 7 l 8 )@l0 l 5 l 0l Sj 7 l 8 ]@
C oN*T
" ', " ' lLJ@l du c el Cocit ET NYM.ER 6.
6.
IVENT DATE 14 73 ptPCMT DAT E
.0 loIi1 80 I
EVENT DESCaiPTioN AND P AcS ABLE CoNSEOuENCES h It was determined that thej f oTil 10n April 6,1978, the RC leak rate exceeded 1 gpm.
l o 121 l Icak was primarily a packing leak on 2RC-3, the Spray Control Block Valve, j
line root valve were repacked.
During startup, g
l o 141 I the valve and an instrument The weld was t o is j 1 another leak was discovered in the pressurizer heater bundle.
jirepaired and the unit returned to service on April 22, 1978. No adverse io lo lil I ef f ects resulted since all leakage was contained and no loss of RCS capabilityg l
l o 1. ) I was experienced.
sus $c's sUco$a Sc"o's"
- [c$
su".cEs ecuroa.twi coot l C)J j@
@ l Xl@ l V ] Al L]V l El X]@ gg { Dj @
o 9 s.
i.
io ii i
si M EvisiCN.
stCutMT1AL OCCUR *ENCE a t PC,97
@,ag,,,o l7 l8 j
{---J l 0l0 l 6 l y
10} 3]
y g
ho.
ne
,,,evaarvua marcar.o.
cc=e ti n
u 12 u
u 11 a
- o at 22
'MN 7cWM c'JNET
u'STo"
's"e'iEs o' ac'I".SO..
"sl",'t3"l' uf=*u",*2c'E4 u
L.x _J@L.2N Jg lR l 3 l 4 l ng I
a lB j@l3@
l ^_j@
I.A J@
I I
I I LIJ@
21 u
n v
.a
<i CAusE cesCmPncN ANo CcaeEcnvE Ac;icNs @
t The pressurizer heater i
Ii la i l The valve leaks were a result of blown packing.
li li j l bundle leak was caused by a flange seal weld f ailure evidently initiated i
The valves were repacked and the y
during startup after the valve repairs.
I g,,,3 i g l flange was re-welded to repair the leaks.
j i
I i
i.
NA l-l Algl Operator ObservaEEstpio11C4 iscov any si T
% PCMim OvMtesTATUS Di ov RV lon
{ Ej@ l 1l 0 l 0lgl i s
.o toe,T,e.,,,u,,,@
.Jnviry CStaur
,,.ou~r o,.cu viTv @ l NA l
NA l
..u.s.o o
..u s.
l li isI l Zj @ lZ_J @ 3.3
.=
,..so~,1n,os l 11014 ]@LEj@l Total e@xposure for investigation and repair-40.885 taan uvu.en ne cescm.non j
i 7
'2 re sc ~it i.uuics otsc-Tio=@
NA g
au= s a l1 la l l 0l 010 ]@l 80
?
ii 12 Lo'1 o, CA OswaGE TO, AC LITV l
v478 CEsensPTiO8e NA Q @l i s 0
3 io NRC USE C4LY Pu.uctTY j
gg;;;9gggggg; essuto@otscaiPtic.Q lExplanat on of outage 2 o OWm4M i.
K. R. Whm
,,cy, NAuE ca rnEranEn
.