ML19340D900: Difference between revisions
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{{#Wiki_filter:- - . - . _ _ - _ _ _ - _ _ _ _ _ __. ___ __ __ . _ . -_ _ .. .. | {{#Wiki_filter:- - . - . _ _ - _ _ _ - _ _ _ _ _ __. ___ __ __ . _ . -_ _ .. .. | ||
reR CFCC M- 366 - U. S. NUCLE AR REGULATC3Y COMMIS$10N mm | reR CFCC M- 366 - U. S. NUCLE AR REGULATC3Y COMMIS$10N mm | ||
* LICENSEE EVENT REPORT | * LICENSEE EVENT REPORT | ||
- CostmotatCCx:l l l 1 1 I l (PLEAsE PRINT om Tyre ALL REcu RED INFORMATION) i e@ | - CostmotatCCx:l l l 1 1 I l (PLEAsE PRINT om Tyre ALL REcu RED INFORMATION) i e@ | ||
, le t t 1.1 7 8 9 N ltJCErdSEEJ l O C00g lC l P l1 lgl3 0l 0l -l 0UCENS& | , le t t 1.1 7 8 9 N ltJCErdSEEJ l O C00g lC l P l1 lgl3 0l 0l -l 0UCENS& | ||
Line 30: | Line 28: | ||
] EvEN r ceSCRirTioN AND PRCSABLE CCNSEQUENCES h l | ] EvEN r ceSCRirTioN AND PRCSABLE CCNSEQUENCES h l | ||
t c 1: Ll Limiting condition for operation per T.S. 3.4.A.3 when Core Sprav Systm I | t c 1: Ll Limiting condition for operation per T.S. 3.4.A.3 when Core Sprav Systm I | ||
) .I o ,3 t l I was renoved frun service to megger and inspect core spray pump NZOlA f | ) .I o ,3 t l I was renoved frun service to megger and inspect core spray pump NZOlA f Ioi4i I and NZOlC notors. Core Spray System II was available and verified to be I i o 4 s i ; operable. There were no adverse effects on the public health and safety l IC es t i i t | ||
Ioi4i I and NZOlC notors. Core Spray System II was available and verified to be I i o 4 s i ; operable. There were no adverse effects on the public health and safety l IC es t i i t | |||
Is l:, i i i | Is l:, i i i | ||
10!al I sc | 10!al I sc SYSTEM CAuSE CAvSE COMP. VALV E | ||
SYSTEM CAuSE CAvSE COMP. VALV E | |||
:::.s .cc:t Su::::a ::ur: nan 7 :cce $ts:::: sus::: | :::.s .cc:t Su::::a ::ur: nan 7 :cce $ts:::: sus::: | ||
io191 7 3 lR l Bl@ l El@ l B l@ l Pl Il PI El XI X lh l A l@ l Zl@ | io191 7 3 lR l Bl@ l El@ l B l@ l Pl Il PI El XI X lh l A l@ l Zl@ | ||
3 30 ft 12 12 18 19 ;0 SecutNTIAL CC0uR AENCE MEROm? - mEVISICN | 3 30 ft 12 12 18 19 ;0 SecutNTIAL CC0uR AENCE MEROm? - mEVISICN EVENTvtAm REPomi No. C00s Tyrs No, | ||
EVENTvtAm REPomi No. C00s Tyrs No, | |||
@ ;aa e.?,g aC l-l l 0l sl 41 1/l 10131 L2J L-J I.o_I lai810l 22 22 24 s 2r :s :s :: si 22 | @ ;aa e.?,g aC l-l l 0l sl 41 1/l 10131 L2J L-J I.o_I lai810l 22 22 24 s 2r :s :s :: si 22 | ||
'# ^ "' | '# ^ "' | ||
Line 49: | Line 40: | ||
lB ln Z l@ lZl@ l0 10 wCums l0 l0 l@ Yl@ l $5s'dI1TE5# | lB ln Z l@ lZl@ l0 10 wCums l0 l0 l@ Yl@ l $5s'dI1TE5# | ||
lYl@ (Jij@ lwl3l1l8l@ | lYl@ (Jij@ lwl3l1l8l@ | ||
u l@l24 Zl@ ze 21 <a at a2 s2 aa as CAUSE DESCRIPriCN AND CCRRECTIVE ACTIONS h i | u l@l24 Zl@ ze 21 <a at a2 s2 aa as CAUSE DESCRIPriCN AND CCRRECTIVE ACTIONS h i | ||
g , , o g lhe cause was attributed to water leaking into the motor lead connection I | g , , o g lhe cause was attributed to water leaking into the motor lead connection I | ||
Line 57: | Line 46: | ||
I | I | ||
,,,,,greinstalled with new gaskets and the conduit was sealed. l | ,,,,,greinstalled with new gaskets and the conduit was sealed. l | ||
! - I tit 4 I | ! - I tit 4 I | ||
' 7 8 9 80 gPQwim is C y CISCcytRY DESCmiPTION A CrwtmSTATuS | ' 7 8 9 80 gPQwim is C y CISCcytRY DESCmiPTION A CrwtmSTATuS L'_t5J l E l@ l 0 l 6 l 312l@l?S NA l l A l@l Operator Observation l 1 7 sg Ig 44 et de So i m.uut , meLcui A CUNT e, ACTivirv @l l toCATieNomeuAse@ | ||
L'_t5J l E l@ l 0 l 6 l 312l@l?S NA l l A l@l Operator Observation l 1 7 sg Ig 44 et de So i m.uut , meLcui A CUNT e, ACTivirv @l l toCATieNomeuAse@ | |||
fits 1Lz_1 NA n l i | fits 1Lz_1 NA n l i | ||
7 8 9 l zJ@l | 7 8 9 l zJ@l | ||
Line 68: | Line 54: | ||
! NupeEm TYPE OESCptPTION NA j I: 17110 l010 l@l zi@l" ' | ! NupeEm TYPE OESCptPTION NA j I: 17110 l010 l@l zi@l" ' | ||
l | l | ||
..mseN~ENuLS | ..mseN~ENuLS | ||
:nem,Tio~@ f: '3 1H | :nem,Tio~@ f: '3 1H | ||
# ib | # ib | ||
: Nuo..A l Fir 18 l9 010 10 l@l12 NA ; 1 T 2k l | : Nuo..A l Fir 18 l9 010 10 l@l12 NA ; 1 T 2k l | ||
! 7 11 80 il i LCSS 08 Cm CAUAGE 70 #ACILITv Tvet CESCmiPTION | ! 7 11 80 il i LCSS 08 Cm CAUAGE 70 #ACILITv Tvet CESCmiPTION l 9 Izl@l _ | ||
NA l | |||
l 9 Izl@l _ | t' . . | ||
NA | |||
Pt/suCITv ia | Pt/suCITv ia | ||
.t o1050 NRC USE ONLY iSSueo CEScat* Tion f, f l_2_)ol [Y_j l Weekly News Mme:o I I!l!lIIIIIIIIi j , , , io ss se so.: | .t o1050 NRC USE ONLY iSSueo CEScat* Tion f, f l_2_)ol [Y_j l Weekly News Mme:o I I!l!lIIIIIIIIi j , , , io ss se so.: | ||
' . SW pueyg; rgnm 693-6037 2, NAME OF *PE*ARER | ' . SW pueyg; rgnm 693-6037 2, NAME OF *PE*ARER | ||
~ | ~ | ||
1 OYSTER CREEK NEX2EJR GENERATING STIu'IW Forked River, New Jersey 08731 | 1 OYSTER CREEK NEX2EJR GENERATING STIu'IW Forked River, New Jersey 08731 | ||
, Licensee Event Report ' | , Licensee Event Report ' | ||
Reportable Occurrence No. 50-219/80-54/3L Report Late Decerber 23, 1980 Occurrence Date Noverber 30, 1980 l Identification of Occurrence | Reportable Occurrence No. 50-219/80-54/3L Report Late Decerber 23, 1980 Occurrence Date Noverber 30, 1980 l Identification of Occurrence Operation in a degraded mode pennitted by a Jimiting condition for operation per | ||
Operation in a degraded mode pennitted by a Jimiting condition for operation per | |||
%chnical Specifications, section 3.4.A.3, when Core Spray Systan I was retovtd fran service to inspect Core Spray Pumps NZ01A and NZ01C. The pumps had been i | %chnical Specifications, section 3.4.A.3, when Core Spray Systan I was retovtd fran service to inspect Core Spray Pumps NZ01A and NZ01C. The pumps had been i | ||
sprayed with water when the control Rod Drive (CRD) punp seal / bearing water pipes developed leaks. | sprayed with water when the control Rod Drive (CRD) punp seal / bearing water pipes developed leaks. | ||
t This event is considered to be a reportable occurrence as defined in the Technical Specifications, paragraph 6.9.2.b. (2) . | t This event is considered to be a reportable occurrence as defined in the Technical Specifications, paragraph 6.9.2.b. (2) . | ||
Conditions Prior to occurrence | Conditions Prior to occurrence m e plant was operating at steady state power. Bhjor plant parameters at the | ||
m e plant was operating at steady state power. Bhjor plant parameters at the | |||
; time of occurrence were: | ; time of occurrence were: | ||
Power: Core 1210 FWt | Power: Core 1210 FWt | ||
Line 109: | Line 78: | ||
Flow: Recirculation 11.2 x 10 gpn | Flow: Recirculation 11.2 x 10 gpn | ||
! Feedwater 3.75 x 106 lb/hr | ! Feedwater 3.75 x 106 lb/hr | ||
, j Description of Occurrence l i l On Noveuber 30, 1980 leaks were discovered to have developed in the seal water | |||
, j Description of Occurrence l i | |||
l On Noveuber 30, 1980 leaks were discovered to have developed in the seal water | |||
; piping of both CRD purrps. As a result water was sprayed over the Core Spray Pumps below. As a precautionary measure, punps NZ01A and NZ0lc were renoved l}i fran service for inspection after performing an operability check on the redundant systen. Initial megger readings taken (prior to stopping the water spray cxxupletely) revealed resistance readings of approximately 20-40 Megohms which indicates that the pumps would have started if necessary. | ; piping of both CRD purrps. As a result water was sprayed over the Core Spray Pumps below. As a precautionary measure, punps NZ01A and NZ0lc were renoved l}i fran service for inspection after performing an operability check on the redundant systen. Initial megger readings taken (prior to stopping the water spray cxxupletely) revealed resistance readings of approximately 20-40 Megohms which indicates that the pumps would have started if necessary. | ||
After the water spray had been stcpped the pumps were inspected. -S e inspection indicated that water had collected in the motor lead connection box on the punp motors. The water had apparently leaked into the junction box through worn cover gaskets and also possibly through the conduit carrying the cables to the l junction box. The conduit was found to be open where the cable enters fran the | After the water spray had been stcpped the pumps were inspected. -S e inspection indicated that water had collected in the motor lead connection box on the punp motors. The water had apparently leaked into the junction box through worn cover gaskets and also possibly through the conduit carrying the cables to the l junction box. The conduit was found to be open where the cable enters fran the | ||
! cable trays. | ! cable trays. | ||
i i d | i i d | ||
---c. , ,,,,wn . . g e ,y-.-.g.+7 , -nn, .ye-y,m--a ,,,p,,w ,. y , - . . -e- , p .- , , | ---c. , ,,,,wn . . g e ,y-.-.g.+7 , -nn, .ye-y,m--a ,,,p,,w ,. y , - . . -e- , p .- , , | ||
l l | |||
l | |||
l | |||
Reportable Occurrence Page 2 Report No. 50-219/80-54/3L Apparent Cause of Occurrence | Reportable Occurrence Page 2 Report No. 50-219/80-54/3L Apparent Cause of Occurrence | ||
, The cause of the occurrence was attributed to water spray frun the CRD seal piping leak wetting the notor power leads. Water had entered the connection box | , The cause of the occurrence was attributed to water spray frun the CRD seal piping leak wetting the notor power leads. Water had entered the connection box through worn cover gaskets and possibly through open ended conduit. | ||
through worn cover gaskets and possibly through open ended conduit. | |||
J | J | ||
, Analysis of occurrence i | , Analysis of occurrence i | ||
'Ihe Core Spray Systen is an emergency standby systen designed to provide continued cooling of the reactor core during loss of coolant accidents. There are two independent redundant loops, each capable of performing the design function. | 'Ihe Core Spray Systen is an emergency standby systen designed to provide continued cooling of the reactor core during loss of coolant accidents. There are two independent redundant loops, each capable of performing the design function. | ||
The safety significance of the event is considered mininni since the redundant | The safety significance of the event is considered mininni since the redundant loop was verified to be operable before reroving Systen I from service. | ||
loop was verified to be operable before reroving Systen I from service. | |||
i' Corrective Action The notor leads were dried out and megger rmMngs taken afterwards indicated resistance valves of 2,000 and 2,500 Megohms for pumps NZ01A and NZ01C, respectively. | i' Corrective Action The notor leads were dried out and megger rmMngs taken afterwards indicated resistance valves of 2,000 and 2,500 Megohms for pumps NZ01A and NZ01C, respectively. | ||
1 'Ihe junction box cover was replaced using new gaskets and tle conduit was sealed | 1 'Ihe junction box cover was replaced using new gaskets and tle conduit was sealed | ||
Line 142: | Line 97: | ||
l Failure Data Not applicable. | l Failure Data Not applicable. | ||
1 i . | 1 i . | ||
4 l | 4 l | ||
l a | l a | ||
i i | i i | ||
t t | t t | ||
l i | l i | ||
9 I | |||
9 | t l | ||
l | |||
I i | I i | ||
, ) | , ) | ||
'il C Z.. | 'il C Z.. | ||
. ._, . .J ^ C~~~ T. - . - . . . . . , . Ti-._--.__.-._ ___-. _ _. - . . , . h. l__. , . _ . - - - . _ - . , , - ,}} | . ._, . .J ^ C~~~ T. - . - . . . . . , . Ti-._--.__.-._ ___-. _ _. - . . , . h. l__. , . _ . - - - . _ - . , , - ,}} |
Latest revision as of 09:13, 18 February 2020
ML19340D900 | |
Person / Time | |
---|---|
Site: | Oyster Creek |
Issue date: | 12/23/1980 |
From: | Crosby P JERSEY CENTRAL POWER & LIGHT CO. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
Shared Package | |
ML19340D863 | List: |
References | |
LER-80-054-03L, LER-80-54-3L, NUDOCS 8101050541 | |
Download: ML19340D900 (3) | |
Text
- - . - . _ _ - _ _ _ - _ _ _ _ _ __. ___ __ __ . _ . -_ _ .. ..
reR CFCC M- 366 - U. S. NUCLE AR REGULATC3Y COMMIS$10N mm
- LICENSEE EVENT REPORT
- CostmotatCCx:l l l 1 1 I l (PLEAsE PRINT om Tyre ALL REcu RED INFORMATION) i e@
, le t t 1.1 7 8 9 N ltJCErdSEEJ l O C00g lC l P l1 lgl3 0l 0l -l 0UCENS&
to 1 l 0 lNyugtm 0 l 0 l 0 l- l0 l240 l@l 24 4lUCE%&E ll 1l 1l TYPt1l@l 40 l
ti sai be l@
con ~r
_ l0I*I E*,"c l L gl 0l 5l 0l 0 l 0 l 2 l 1 l 9 @l 1 59 l 1 EVENT l 3 l0 CAfg l 8 l0 l@l 74 lj 2 !REPCAT 7S 2 l 3OATE l 8 l 0_l@ 80 F 4 80 61 OOCK ET Nuns tm et
] EvEN r ceSCRirTioN AND PRCSABLE CCNSEQUENCES h l
t c 1: Ll Limiting condition for operation per T.S. 3.4.A.3 when Core Sprav Systm I
) .I o ,3 t l I was renoved frun service to megger and inspect core spray pump NZOlA f Ioi4i I and NZOlC notors. Core Spray System II was available and verified to be I i o 4 s i ; operable. There were no adverse effects on the public health and safety l IC es t i i t
Is l:, i i i
10!al I sc SYSTEM CAuSE CAvSE COMP. VALV E
- .s .cc:t Su::::a ::ur: nan 7 :cce $ts:::: sus:::
io191 7 3 lR l Bl@ l El@ l B l@ l Pl Il PI El XI X lh l A l@ l Zl@
3 30 ft 12 12 18 19 ;0 SecutNTIAL CC0uR AENCE MEROm? - mEVISICN EVENTvtAm REPomi No. C00s Tyrs No,
@ ;aa e.?,g aC l-l l 0l sl 41 1/l 10131 L2J L-J I.o_I lai810l 22 22 24 s 2r :s :s :: si 22
'# ^ "'
^*EN r "a'CSEd oEp'iEN7 "u"s5EY ac"ESIs "'*'Sup* h*EU w UP7CEn#
sm j
lB ln Z l@ lZl@ l0 10 wCums l0 l0 l@ Yl@ l $5s'dI1TE5#
lYl@ (Jij@ lwl3l1l8l@
u l@l24 Zl@ ze 21 <a at a2 s2 aa as CAUSE DESCRIPriCN AND CCRRECTIVE ACTIONS h i
g , , o g lhe cause was attributed to water leaking into the motor lead connection I
,,,,,;tox due to worn cover gaskets and open ended conduit. We noter leads I
- were dried and meggered satisfactorily. The connection box cover was ;
I
,,,,,greinstalled with new gaskets and the conduit was sealed. l
! - I tit 4 I
' 7 8 9 80 gPQwim is C y CISCcytRY DESCmiPTION A CrwtmSTATuS L'_t5J l E l@ l 0 l 6 l 312l@l?S NA l l A l@l Operator Observation l 1 7 sg Ig 44 et de So i m.uut , meLcui A CUNT e, ACTivirv @l l toCATieNomeuAse@
fits 1Lz_1 NA n l i
7 8 9 l zJ@l
?Q tt 44 46 80
. *tmSCNNEL E*PCSumES
! NupeEm TYPE OESCptPTION NA j I: 17110 l010 l@l zi@l" '
l
..mseN~ENuLS
- nem,Tio~@ f: '3 1H
- ib
- Nuo..A l Fir 18 l9 010 10 l@l12 NA ; 1 T 2k l
! 7 11 80 il i LCSS 08 Cm CAUAGE 70 #ACILITv Tvet CESCmiPTION l 9 Izl@l _
NA l
t' . .
Pt/suCITv ia
.t o1050 NRC USE ONLY iSSueo CEScat* Tion f, f l_2_)ol [Y_j l Weekly News Mme:o I I!l!lIIIIIIIIi j , , , io ss se so.:
' . SW pueyg; rgnm 693-6037 2, NAME OF *PE*ARER
~
1 OYSTER CREEK NEX2EJR GENERATING STIu'IW Forked River, New Jersey 08731
, Licensee Event Report '
Reportable Occurrence No. 50-219/80-54/3L Report Late Decerber 23, 1980 Occurrence Date Noverber 30, 1980 l Identification of Occurrence Operation in a degraded mode pennitted by a Jimiting condition for operation per
%chnical Specifications, section 3.4.A.3, when Core Spray Systan I was retovtd fran service to inspect Core Spray Pumps NZ01A and NZ01C. The pumps had been i
sprayed with water when the control Rod Drive (CRD) punp seal / bearing water pipes developed leaks.
t This event is considered to be a reportable occurrence as defined in the Technical Specifications, paragraph 6.9.2.b. (2) .
Conditions Prior to occurrence m e plant was operating at steady state power. Bhjor plant parameters at the
- time of occurrence were
Power: Core 1210 FWt
+ Electrical 360 bWe 4
Flow: Recirculation 11.2 x 10 gpn
! Feedwater 3.75 x 106 lb/hr
, j Description of Occurrence l i l On Noveuber 30, 1980 leaks were discovered to have developed in the seal water
- piping of both CRD purrps. As a result water was sprayed over the Core Spray Pumps below. As a precautionary measure, punps NZ01A and NZ0lc were renoved l}i fran service for inspection after performing an operability check on the redundant systen. Initial megger readings taken (prior to stopping the water spray cxxupletely) revealed resistance readings of approximately 20-40 Megohms which indicates that the pumps would have started if necessary.
After the water spray had been stcpped the pumps were inspected. -S e inspection indicated that water had collected in the motor lead connection box on the punp motors. The water had apparently leaked into the junction box through worn cover gaskets and also possibly through the conduit carrying the cables to the l junction box. The conduit was found to be open where the cable enters fran the
! cable trays.
i i d
---c. , ,,,,wn . . g e ,y-.-.g.+7 , -nn, .ye-y,m--a ,,,p,,w ,. y , - . . -e- , p .- , ,
l l
Reportable Occurrence Page 2 Report No. 50-219/80-54/3L Apparent Cause of Occurrence
, The cause of the occurrence was attributed to water spray frun the CRD seal piping leak wetting the notor power leads. Water had entered the connection box through worn cover gaskets and possibly through open ended conduit.
J
, Analysis of occurrence i
'Ihe Core Spray Systen is an emergency standby systen designed to provide continued cooling of the reactor core during loss of coolant accidents. There are two independent redundant loops, each capable of performing the design function.
The safety significance of the event is considered mininni since the redundant loop was verified to be operable before reroving Systen I from service.
i' Corrective Action The notor leads were dried out and megger rmMngs taken afterwards indicated resistance valves of 2,000 and 2,500 Megohms for pumps NZ01A and NZ01C, respectively.
1 'Ihe junction box cover was replaced using new gaskets and tle conduit was sealed
- at the open end. Core Spray Systen I was returned to service after performing an operability test on the Core Spray Pumps.
l Failure Data Not applicable.
1 i .
4 l
l a
i i
t t
l i
9 I
t l
I i
, )
'il C Z..
. ._, . .J ^ C~~~ T. - . - . . . . . , . Ti-._--.__.-._ ___-. _ _. - . . , . h. l__. , . _ . - - - . _ - . , , - ,