ML19308D183: Difference between revisions
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U.S.NUCLEAA REGULAfoeY COase.assacas i N,RC i.n ,7oAas 388 | U.S.NUCLEAA REGULAfoeY COase.assacas i N,RC i.n ,7oAas 388 | ||
~* LICENSEE EVENT REPORT EXHISIT A l j | ~* LICENSEE EVENT REPORT EXHISIT A l j | ||
ietsui e=Nr oA TYM ALL REQUIRED INFopMafloNa l CoNtRob StoCo i I I i 1 I IQ ' | ietsui e=Nr oA TYM ALL REQUIRED INFopMafloNa l CoNtRob StoCo i I I i 1 I IQ ' | ||
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'l | 'l | ||
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con v j . | |||
con v | i lalil | ||
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i | |||
lalil | |||
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> ...c. .a | > ...c. .a 4 | ||
avsNr ossCmPTICN AND PACS ASLE CoNSEQbENCES notified Unit 3 that during the performange g i n mode 1 operation, Units 1 & | |||
I | I | ||
, of the :able Tunnel Sump Pump Operability, SP-322, one of the two sump , f | , of the :able Tunnel Sump Pump Operability, SP-322, one of the two sump , f | ||
, , , , , , pumpe fail ed to start contrary to Tech Spec 3.8.1.1.a. No safety hazard , , | , , , , , , pumpe fail ed to start contrary to Tech Spec 3.8.1.1.a. No safety hazard , , | ||
i | i | ||
,, ,,, , as both emergency diesel generators were available and verified operable. , | ,, ,,, , as both emergency diesel generators were available and verified operable. , | ||
g ,, , , Breaker vr.rification SP-321 was performed satisfactorily. Maintenance 1 | g ,, , , Breaker vr.rification SP-321 was performed satisfactorily. Maintenance 1 | ||
,,,,,, restored the sump pump operable within seven hours. Second occurrence. ~ g | ,,,,,, restored the sump pump operable within seven hours. Second occurrence. ~ g | ||
,,,,,, Refer to LER 78-002/03L-0. i | ,,,,,, Refer to LER 78-002/03L-0. i OE C 6 $69 Q 4 C3980%4%TECD4 3 Si. [ | ||
OE C 6 $69 Q 4 C3980%4%TECD4 3 Si. [ | |||
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Line 94: | Line 66: | ||
, , , , , was restored. , | , , , , , was restored. , | ||
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. '8002 270 ( W l | . '8002 270 ( W l | ||
,g | ,g | ||
. . . , , SUPPLEMENTARI INFORMATION N | . . . , , SUPPLEMENTARI INFORMATION N | ||
: 1. Repor No.: 50-302/78-005/03L-0 | : 1. Repor No.: 50-302/78-005/03L-0 | ||
: 2. Facility: CrystalRiverdnit #3 | : 2. Facility: CrystalRiverdnit #3 | ||
: 3. Raport Date: 2 February 1978 | : 3. Raport Date: 2 February 1978 | ||
: 4. Occurrence Date: 9 January 1978 | : 4. Occurrence Date: 9 January 1978 | ||
: 5. Identification of occurrence: | : 5. Identification of occurrence: | ||
Line 146: | Line 97: | ||
: 7. Description of Occurrence: | : 7. Description of Occurrence: | ||
i At 0001, the Units 1 & 2 Shift Supervisor notified Unit 3 that when performing the . | i At 0001, the Units 1 & 2 Shift Supervisor notified Unit 3 that when performing the . | ||
Cable Tunnel Sump Pros Operability Surveillance Procedurs SP-322, one of the two sump pumps failed c: start. The one hour Action Statement of Technical Specification 3.8.1.1. was entered md both emergency diesel generators were verified operable and the Breaker Verificacica, SP-321, was performed. Units 1 & 2 maintenance restored operability of the sump pump at 0640 and SP-322 was complaced satisfactorily. | Cable Tunnel Sump Pros Operability Surveillance Procedurs SP-322, one of the two sump pumps failed c: start. The one hour Action Statement of Technical Specification 3.8.1.1. was entered md both emergency diesel generators were verified operable and the Breaker Verificacica, SP-321, was performed. Units 1 & 2 maintenance restored operability of the sump pump at 0640 and SP-322 was complaced satisfactorily. | ||
Designation of Apparent Cause: | Designation of Apparent Cause: |
Latest revision as of 22:57, 21 February 2020
ML19308D183 | |
Person / Time | |
---|---|
Site: | Crystal River |
Issue date: | 02/02/1978 |
From: | Cooper J FLORIDA POWER CORP. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
Shared Package | |
ML19308D179 | List: |
References | |
LER-78-005-03L, LER-78-5-3L, NUDOCS 8002270651 | |
Download: ML19308D183 (2) | |
Text
. _- . . . _ _ _ - - - _ . ______ _ - - - _
1 .
U.S.NUCLEAA REGULAfoeY COase.assacas i N,RC i.n ,7oAas 388
~* LICENSEE EVENT REPORT EXHISIT A l j
ietsui e=Nr oA TYM ALL REQUIRED INFopMafloNa l CoNtRob StoCo i I I i 1 I IQ '
[TTTl lF 1 ,,,,.mu LI Q. R) P 3 Iglu0 l 0 l- i O Oi 0 j Og0 ; ;0 i 0lgg 4: l i1gl ; 1u lgg q _lg . , , * .
'l
, . , .,u. .. n u - ... n .. ven a r...
con v j .
i lalil
, e
[**,"c' M u
)l 0! 51ooc..,
0 -101301 w ...
21gi.o : i to ol9
,. . I 718 l@l n ,o.re a O!2 ! al2a.noI 7 I al@
> ...c. .a 4
avsNr ossCmPTICN AND PACS ASLE CoNSEQbENCES notified Unit 3 that during the performange g i n mode 1 operation, Units 1 &
I
, of the :able Tunnel Sump Pump Operability, SP-322, one of the two sump , f
, , , , , , pumpe fail ed to start contrary to Tech Spec 3.8.1.1.a. No safety hazard , ,
i
,, ,,, , as both emergency diesel generators were available and verified operable. ,
g ,, , , Breaker vr.rification SP-321 was performed satisfactorily. Maintenance 1
,,,,,, restored the sump pump operable within seven hours. Second occurrence. ~ g
,,,,,, Refer to LER 78-002/03L-0. i OE C 6 $69 Q 4 C3980%4%TECD4 3 Si. [
u,,w. it i s I@ t,,sj@ L,,Aj@ IP I Ul Mf H X[,jg@
b4C008[,,,CJ@
u (,,2,J m @
.gviticae CCC:Jte .spo.et S.E.Q.t.;
.4 s t,fi.6 =.t %C3 - ..
o.e,.3
@ ,,a.=;*j"
_u i 'I I L-.-J u
10 I O f Si
.. u y,,
iO!31 i LI a
8u W
u
=w a:n 'ww , x.u : .;:. u *i: = .zie:..
t_ zJ O I o lo 1 0 9= 1 L.L.I@ NJO Iz !@ lM 0 710 f@
g.u@g.u@ u,u@
. . . 2 . .,
CAUSE DESCMif f1 cps AND CORRICflVE ACTIONS
, , , c , g The cause of this event was to failure of the starr control bulb switch g , of the sump pump installed on 4 January 1978. The current capacity of the, t
, start switch supplied with packaged pump was inadequate. The switch was ,
l 7 , renewed with one of a higher current capacity and operability of the pump ,
, , , , , was restored. ,
's,*.'j 7 *.:ws= we= ,t.v.s @ 5'E:NSI* : se: t.* :ss:=*t . a @
I,,+1 W @ lot 615 lgl NA l Q gl Operator obsarration l e g,,,,,, ga.,,,, u .: - n-
- m..2%...u.:,@
n,s.- @i u ... ...m m,. .z,j (
@. .. ..u .Ly,,,1@l i
4% s o.on u i NA i tvw.ge tvet !!S:.T*04 i n t 1 16 10 i Ol@W@l" A l
..,m.
..u ,'s'aiu=u: -.:%@
t i i- 5l 10 ! 0 i Ol@l NA I F P 11 12 33 T' ' *
- 5 3'j',".',~48 * ' @
NA R b., @lu I
- '#c ' 5 C' u
, R g,Q*L..j .e%@
, NA f ri ::::::: : ,
e . . 2 g << o sa
] . Cocoer ,,cy, (904) 7o5 4486'
%Avs cs >=cea,
, l.
. '8002 270 ( W l
,g
. . . , , SUPPLEMENTARI INFORMATION N
- 1. Repor No.: 50-302/78-005/03L-0
- 2. Facility: CrystalRiverdnit #3
- 3. Raport Date: 2 February 1978
- 4. Occurrence Date: 9 January 1978
- 5. Identification of occurrence:
Failure of one cable tunnel pump sump to start creating a condition contrary to Technical Specification 3.8.1.1.a.
- 6. Conditions Prior to Occurrence:
Mode 1 operation.
- 7. Description of Occurrence:
i At 0001, the Units 1 & 2 Shift Supervisor notified Unit 3 that when performing the .
Cable Tunnel Sump Pros Operability Surveillance Procedurs SP-322, one of the two sump pumps failed c: start. The one hour Action Statement of Technical Specification 3.8.1.1. was entered md both emergency diesel generators were verified operable and the Breaker Verificacica, SP-321, was performed. Units 1 & 2 maintenance restored operability of the sump pump at 0640 and SP-322 was complaced satisfactorily.
Designation of Apparent Cause:
The current capacity of the start control bulb switch for the pump installed en 4 January 1978 was inadequate, the switch failed rendering the pump inoperable.
- 9. Analysis of Occurrence:
There was no safety hazard to the plant or general public as both "3A" and "33" emergency diesel generators were available and verified operable.
- 10. Corrective Action: -
No corrective serion necessary as installation of a start control bulb switch of adequate current capacity restored operability of the pump.
l.. Failure Data:
This is the second occurrence of this event as reported by LER 78-002/03L-0.
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l . . - - . _ .