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OYSTER CREEK NUCLEAR GENERATING STATION g u gf g 5j yj (609) 693-1951 P.O. BOX 388 | OYSTER CREEK NUCLEAR GENERATING STATION g u gf g 5j yj (609) 693-1951 P.O. BOX 388 | ||
* FORKED RIVER | * FORKED RIVER | ||
Line 24: | Line 22: | ||
* 08731 w.b. ua s - . | * 08731 w.b. ua s - . | ||
April 27, 1981 | April 27, 1981 | ||
@. ~ 4 Mr. Boyce H. Grier, Director Office of Inspection and Enforcanent Region I | @. ~ 4 Mr. Boyce H. Grier, Director Office of Inspection and Enforcanent Region I | ||
'(\ /[' [ | '(\ /[' [ | ||
Line 32: | Line 29: | ||
==Dear Mr. Grier:== | ==Dear Mr. Grier:== | ||
4 sp | 4 sp | ||
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Office of Nuclear Reactor Regulations United States Nuclear Regulatory Camission Washington, D. C. 20555 Director NBC Resident Ins g-W (1) | Office of Nuclear Reactor Regulations United States Nuclear Regulatory Camission Washington, D. C. 20555 Director NBC Resident Ins g-W (1) | ||
Oyster Creek N el a r Generating Station Forked River, N. J. | Oyster Creek N el a r Generating Station Forked River, N. J. | ||
Ob 3 'l 8105010Y/o | Ob 3 'l 8105010Y/o S | ||
S | o . | ||
OYS'IER CREEK NUCLEAR GDERATING STATION Ebzked River, New Jersey 08731 Nontoutine Envitmo.iutal Operating Report No. 50-219/81-1 Report Date April 27, 1981 Occtu. ins Date April 15 & 16, 1981 Identification of Occtu.imm Excaading a limiting cx:niition as dafined in the Envircomental Tachnical Speci-fication, Paragraph 2.1.4.3, when within a span of two days, two indivichm1 ~ | |||
OYS'IER CREEK NUCLEAR GDERATING STATION Ebzked River, New Jersey 08731 Nontoutine Envitmo.iutal Operating Report No. 50-219/81-1 Report Date | |||
April 27, 1981 Occtu. ins Date April 15 & 16, 1981 Identification of Occtu.imm Excaading a limiting cx:niition as dafined in the Envircomental Tachnical Speci-fication, Paragraph 2.1.4.3, when within a span of two days, two indivichm1 ~ | |||
dilution ptmp trips occurred in which the reserve ptmp oculd not be started within the required 15 minutes. Dur ng each occurrence, the station intake canal tm-reture was below 60.00F. | dilution ptmp trips occurred in which the reserve ptmp oculd not be started within the required 15 minutes. Dur ng each occurrence, the station intake canal tm-reture was below 60.00F. | ||
This event is considered to be a ncteoutine envircnnental operating report as dafined in the Technical Snac4 fica *4rms, Amandix "B", paragraph 5.6.2. | This event is considered to be a ncteoutine envircnnental operating report as dafined in the Technical Snac4 fica *4rms, Amandix "B", paragraph 5.6.2. | ||
Line 64: | Line 53: | ||
na= -intion of occuu.ma Dilution Ptmp 1-3 was manually triW at 0109 on April 15, 1981. 'Ihe ptmp i shutdown was necessitated by low gear box oil pressure. An 4-ad< ate attspt i | na= -intion of occuu.ma Dilution Ptmp 1-3 was manually triW at 0109 on April 15, 1981. 'Ihe ptmp i shutdown was necessitated by low gear box oil pressure. An 4-ad< ate attspt i | ||
was made to start Dilution Ptmp 1-1, the reserve ptmp, but this failed due to a faulty seal water flow switch. Ctmpers were plaM around the flow switch and Dilution Ptmp 1-1 was started at 0545. During this occurrence, the total time of insufficient dilution ptrp operaticn was 4 hours and 36 minutes and the time of ml4ance was 4 hours and 21 minutes. The following day, April 16, 1981, the seal water suction inlet plugged with grass. Dilution Ptmps 1-1 and 1-2 tripped at 1008. Operators cleaned the inlet and started dilut' m puup 1-1 at 1020. Dilution Ptmp 1-2 was started two minutes later, but an asso-lated transient tripped ptmp 1-1. A pressure switch across the lube oil cxcler was l reset and Dilution Ptmp 1-1 was restarted at 1042. The time of rs-dying di eharge was 5 minutes. | was made to start Dilution Ptmp 1-1, the reserve ptmp, but this failed due to a faulty seal water flow switch. Ctmpers were plaM around the flow switch and Dilution Ptmp 1-1 was started at 0545. During this occurrence, the total time of insufficient dilution ptrp operaticn was 4 hours and 36 minutes and the time of ml4ance was 4 hours and 21 minutes. The following day, April 16, 1981, the seal water suction inlet plugged with grass. Dilution Ptmps 1-1 and 1-2 tripped at 1008. Operators cleaned the inlet and started dilut' m puup 1-1 at 1020. Dilution Ptmp 1-2 was started two minutes later, but an asso-lated transient tripped ptmp 1-1. A pressure switch across the lube oil cxcler was l reset and Dilution Ptmp 1-1 was restarted at 1042. The time of rs-dying di eharge was 5 minutes. | ||
.c . , -s -- | .c . , -s -- | ||
: w. , _ . , , , _ , _ , , _ , - - _ . - . . . - _ | : w. , _ . , , , _ , _ , , _ , - - _ . - . . . - _ | ||
Ncmroutine Enviu-- --Fa1 Operating Report No. 50-219/81-1 Page 2 Apparent Cause of Occe41ce Ccr.ponent Failure Analysis of Occurrence Ccx*4rmia operation of the two dilution puups when the intake water tenperature is below 60.0 F during plant operation will reduce the area of ai.Lition and thereby minimize a build-up in the fish standing stock in the discharge canal. | |||
6 At the time of the pung trips, the reactor l power level was approximately 60% of rated power. 'Ihe heat discharge to the diacharge canal was, therefore, greatly reduced. Failure to operate the dilution punps in accordux:e with Tehnical spe4 fication 2.1.4.3 had minimal, if any, adverse biological effects on aquatic organisms. | |||
Ncmroutine Enviu-- --Fa1 Operating Report No. 50-219/81-1 Page 2 Apparent Cause of Occe41ce Ccr.ponent Failure | |||
Analysis of Occurrence Ccx*4rmia operation of the two dilution puups when the intake water tenperature is below 60.0 F during plant operation will reduce the area of ai.Lition and thereby minimize a build-up in the fish standing stock in the discharge canal. | |||
6 At the time of the pung trips, the reactor l power level was approximately 60% of rated power. 'Ihe heat discharge to the diacharge canal was, therefore, greatly reduced. Failure to operate the dilution punps in accordux:e with Tehnical spe4 fication 2.1.4.3 had minimal, if any, adverse biological effects on aquatic | |||
organisms. | |||
I , | I , | ||
Oorrective Action i i | Oorrective Action i i | ||
r_n==44=te cxh.loct.ive actica cxmsisted of j == ring the flow switch on Dilution Pung 1-1 and restarting the pmp at 0545 on April 15, 1981. On April 16, 4wn=94 ate corrective-action consisted of resetting the lube oil cooler switch on 1-1 dilution punp and restarting the pmp at 1042. | r_n==44=te cxh.loct.ive actica cxmsisted of j == ring the flow switch on Dilution Pung 1-1 and restarting the pmp at 0545 on April 15, 1981. On April 16, 4wn=94 ate corrective-action consisted of resetting the lube oil cooler switch on 1-1 dilution punp and restarting the pmp at 1042. | ||
Mxlifications to the cooling and seal water systems for the dilution pungs are presently in the design evaluation stage. | Mxlifications to the cooling and seal water systems for the dilution pungs are presently in the design evaluation stage. | ||
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18 19 20 | 18 19 20 | ||
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7 8 R EVISION SEOVENTIAL OCCURRENCE REPORT | 7 8 R EVISION SEOVENTIAL OCCURRENCE REPORT REPORT NO. CODE TYPE N O. | ||
REPORT NO. CODE TYPE N O. | |||
EVENT YEAR O as=R*RO LE l#1/I L-J 10101/I26 24 L'J 27 l | EVENT YEAR O as=R*RO LE l#1/I L-J 10101/I26 24 L'J 27 l | ||
28 I I 29 LJ 30 L-1 31 LJ 32 | 28 I I 29 LJ 30 L-1 31 LJ 32 | ||
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li i s I LJ@ l 1 I l@l i I l@l ' | li i s I LJ@ l 1 I l@l i I l@l ' | ||
ACTIVIT y CO TENT AMOUNT OF ACTIVITY LOCATION OF RELEASE l RELEASED OF RELEASE I I i | ACTIVIT y CO TENT AMOUNT OF ACTIVITY LOCATION OF RELEASE l RELEASED OF RELEASE I I i | ||
l | l LueJ 7 8 9 LJ@ LJ@l 10 11 44 45 80 PERSONNEL EXPOSURES NUU8ER TYPE l | ||
LueJ 7 8 9 LJ@ LJ@l 10 11 44 45 80 PERSONNEL EXPOSURES NUU8ER TYPE l | |||
l 1 7 l l l l hl DESCRIPTION PERSONNE L INJU IES NUVBE R DESCRIPTION I | l 1 7 l l l l hl DESCRIPTION PERSONNE L INJU IES NUVBE R DESCRIPTION I | ||
ITT l l I l l@l12 80 7 8 9 11 LOSS OF OR DAMAGE TO FACILITY h TYPE DESCRIPTION %./ | ITT l l I l l@l12 80 7 8 9 11 LOSS OF OR DAMAGE TO FACILITY h TYPE DESCRIPTION %./ | ||
I iTTU 7 8 9 LJ@l 10 | I iTTU 7 8 9 LJ@l 10 i liiiiiiiiiiil: | ||
L2 ts.l ISSUET@OESCRIPTION l l 10 68 69 80 = . | L2 ts.l ISSUET@OESCRIPTION l l 10 68 69 80 = . | ||
7 8 9 PHONE: | 7 8 9 PHONE: | ||
NAME OF PREPARER | NAME OF PREPARER | ||
- - - . . _ , _ - . , _ _ _ _ .}} | - - - . . _ , _ - . , _ _ _ _ .}} |
Latest revision as of 03:26, 31 January 2020
ML19345H254 | |
Person / Time | |
---|---|
Site: | Oyster Creek |
Issue date: | 04/27/1981 |
From: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
References | |
RO-50-219-81-1, NUDOCS 8105010410 | |
Download: ML19345H254 (4) | |
Text
.
OYSTER CREEK NUCLEAR GENERATING STATION g u gf g 5j yj (609) 693-1951 P.O. BOX 388
- FORKED RIVER
- 08731 w.b. ua s - .
April 27, 1981
@. ~ 4 Mr. Boyce H. Grier, Director Office of Inspection and Enforcanent Region I
'(\ /[' [
i {- \
United States Nuclear Regulatory Ccmnissicn 631 Park Avenue p AER.?0 /gg7'2
,3'2 LA King of Prussia, Pennsylvania 19406 u.s,kl,,g g h s J
Dear Mr. Grier:
4 sp
SUBJECT:
Oyster Creek Nuclear Generating Station *
(
Docket No. 50-219 Nonroutine Envi m mr.ad.al Operating Report No. 50-219/81-1 l
'Ihis letter forwards two copies of Nonrout:l e Envimmental Operating t
Report No. 50-219/81-1 in 714ance with parag2.J 5.6.2 of Appendix B to l the Technical F4 #4 catims.
Very truly yours,
. N-van R. F Jr.
Vice Preside 1t JCP&L ,
Director - Oyster Creek IRF:dh Encla.,sures cc: Director (17 copies)
Office of Nuclear Reactor Regulations United States Nuclear Regulatory Camission Washington, D. C. 20555 Director NBC Resident Ins g-W (1)
Oyster Creek N el a r Generating Station Forked River, N. J.
Ob 3 'l 8105010Y/o S
o .
OYS'IER CREEK NUCLEAR GDERATING STATION Ebzked River, New Jersey 08731 Nontoutine Envitmo.iutal Operating Report No. 50-219/81-1 Report Date April 27, 1981 Occtu. ins Date April 15 & 16, 1981 Identification of Occtu.imm Excaading a limiting cx:niition as dafined in the Envircomental Tachnical Speci-fication, Paragraph 2.1.4.3, when within a span of two days, two indivichm1 ~
dilution ptmp trips occurred in which the reserve ptmp oculd not be started within the required 15 minutes. Dur ng each occurrence, the station intake canal tm-reture was below 60.00F.
This event is considered to be a ncteoutine envircnnental operating report as dafined in the Technical Snac4 fica *4rms, Amandix "B", paragraph 5.6.2.
Conditic 1s Pricr to Occtu.rus Steady State Power Ptmp Trip No.1 Dilution Ptmp Flow: 5.20 ES GPM Circulating Water
. Ptmp Flow 3.45 E5 GPM Ptmp Trip No. 2 Dilution Ptmp Flow: 5.20 E5 GPM Circulating Water Ptmp Flow 2.30 E5 GPM l
na= -intion of occuu.ma Dilution Ptmp 1-3 was manually triW at 0109 on April 15, 1981. 'Ihe ptmp i shutdown was necessitated by low gear box oil pressure. An 4-ad< ate attspt i
was made to start Dilution Ptmp 1-1, the reserve ptmp, but this failed due to a faulty seal water flow switch. Ctmpers were plaM around the flow switch and Dilution Ptmp 1-1 was started at 0545. During this occurrence, the total time of insufficient dilution ptrp operaticn was 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and 36 minutes and the time of ml4ance was 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and 21 minutes. The following day, April 16, 1981, the seal water suction inlet plugged with grass. Dilution Ptmps 1-1 and 1-2 tripped at 1008. Operators cleaned the inlet and started dilut' m puup 1-1 at 1020. Dilution Ptmp 1-2 was started two minutes later, but an asso-lated transient tripped ptmp 1-1. A pressure switch across the lube oil cxcler was l reset and Dilution Ptmp 1-1 was restarted at 1042. The time of rs-dying di eharge was 5 minutes.
.c . , -s --
- w. , _ . , , , _ , _ , , _ , - - _ . - . . . - _
Ncmroutine Enviu-- --Fa1 Operating Report No. 50-219/81-1 Page 2 Apparent Cause of Occe41ce Ccr.ponent Failure Analysis of Occurrence Ccx*4rmia operation of the two dilution puups when the intake water tenperature is below 60.0 F during plant operation will reduce the area of ai.Lition and thereby minimize a build-up in the fish standing stock in the discharge canal.
6 At the time of the pung trips, the reactor l power level was approximately 60% of rated power. 'Ihe heat discharge to the diacharge canal was, therefore, greatly reduced. Failure to operate the dilution punps in accordux:e with Tehnical spe4 fication 2.1.4.3 had minimal, if any, adverse biological effects on aquatic organisms.
I ,
Oorrective Action i i
r_n==44=te cxh.loct.ive actica cxmsisted of j == ring the flow switch on Dilution Pung 1-1 and restarting the pmp at 0545 on April 15, 1981. On April 16, 4wn=94 ate corrective-action consisted of resetting the lube oil cooler switch on 1-1 dilution punp and restarting the pmp at 1042.
Mxlifications to the cooling and seal water systems for the dilution pungs are presently in the design evaluation stage.
l I
?
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U. S. NUCLEA3 REIULATO.;Y COMMIS$10N '
NRC FORM 366 (7 77) ' '
- LICENSEE EVENT REPORT CONTROL BLOCK: l 1
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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)
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7 8 R EVISION SEOVENTIAL OCCURRENCE REPORT REPORT NO. CODE TYPE N O.
EVENT YEAR O as=R*RO LE l#1/I L-J 10101/I26 24 L'J 27 l
28 I I 29 LJ 30 L-1 31 LJ 32
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CAUSE OESCRIPTION AND CORRECTIVE *CTIONS I
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li i s I LJ@ l 1 I l@l i I l@l '
ACTIVIT y CO TENT AMOUNT OF ACTIVITY LOCATION OF RELEASE l RELEASED OF RELEASE I I i
l LueJ 7 8 9 LJ@ LJ@l 10 11 44 45 80 PERSONNEL EXPOSURES NUU8ER TYPE l
l 1 7 l l l l hl DESCRIPTION PERSONNE L INJU IES NUVBE R DESCRIPTION I
ITT l l I l l@l12 80 7 8 9 11 LOSS OF OR DAMAGE TO FACILITY h TYPE DESCRIPTION %./
I iTTU 7 8 9 LJ@l 10 i liiiiiiiiiiil:
L2 ts.l ISSUET@OESCRIPTION l l 10 68 69 80 = .
7 8 9 PHONE:
NAME OF PREPARER
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