ML19270G101: Difference between revisions
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{{#Wiki_filter:.,. | {{#Wiki_filter:.,. | ||
f LICENSEE EVENT REPORT q% | |||
CONTROL BLOCK: l l l l l l l (PLEAsE PRINT oR TYPE ALL REQUIRED INFoRMATION) 1 eh l0 l0 l0-l l0 0l 0l@4 l1 UCENSE | |||
CONTROL BLOCK: l l l l l l l (PLEAsE PRINT oR TYPE ALL REQUIRED INFoRMATION) | |||
1 eh l0 l0 l0-l l0 0l 0l@4 l1 UCENSE | |||
-l1 l1TYPE l1 Jol@l57 CAT l@ | -l1 l1TYPE l1 Jol@l57 CAT l@ | ||
o 1 l 7 8 -l9 N lUCENSEEJ l 0CODE l C l'P l 1 l@150 l0UCENSE 14 l- l0NUM8En 25 26 58 CON'T o i | o 1 l 7 8 -l9 N lUCENSEEJ l 0CODE l C l'P l 1 l@150 l0UCENSE 14 l- l0NUM8En 25 26 58 CON'T o i | ||
,"y l L l@l 0 l 5 l 0 10 l 0 l 2 l 1 19 l@l 1 lo i 1 l 71 71 8l@l 1 10 l 3-l 0 l 7 l 880 l@ | ,"y l L l@l 0 l 5 l 0 10 l 0 l 2 l 1 19 l@l 1 lo i 1 l 71 71 8l@l 1 10 l 3-l 0 l 7 l 880 l@ | ||
7 8 60 81 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 I "On October 16, 1978. while oerformino inservica InRnectinn i nc lda *ha I | 7 8 60 81 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 I "On October 16, 1978. while oerformino inservica InRnectinn i nc lda *ha I o a I reactor vessel, an Indication was discovered on the sparger piping for l o 4 l Core Spray System II. The Indication which was at azimuth location I o s i 208' 'In the reactor vessel' appeared to extend 180* circumferential1y l o s 1 around the pipe. It was later established that there is a through wall l o 7 I crack for about 135* of the pipe's circumference. l oI8 l I 7 8 9 80 | ||
' CTOE "ISDE SuiCEE COMPONENT CODE Su,? D'E S E 7 | ' CTOE "ISDE SuiCEE COMPONENT CODE Su,? D'E S E 7 | ||
o 9 8 | o 9 8 | ||
Line 36: | Line 29: | ||
9 to 11 12 13 18 19 20 | 9 to 11 12 13 18 19 20 | ||
,,, SEQUENTIAL OCCURRENCE REPORT REVIS3ON LE R/RO EVENT YEAR REPORT NO. CCDE TYPE N O. | ,,, SEQUENTIAL OCCURRENCE REPORT REVIS3ON LE R/RO EVENT YEAR REPORT NO. CCDE TYPE N O. | ||
O17 RE 7 l8 l l_l lQ l2 l } l l/l p l] l Tl [] lQl 21 22 23 24 26 27 28 29 30 31 32 | O17 RE 7 l8 l l_l lQ l2 l } l l/l p l] l Tl [] lQl 21 22 23 24 26 27 28 29 30 31 32 N ACTC P NT MET HOURS SS I PCR B. SU L MA UP RER I33X l@l34X l@ l35C [@ l 36 l@ l 37 l l l l 40 l Y{@ ~ l N ]g 41 l'N l@ ]'44A l 6 l 6 ] 147 l@ | ||
N ACTC P NT MET HOURS SS I PCR B. SU L MA UP RER I33X l@l34X l@ l35C [@ l 36 l@ l 37 l l l l 40 l Y{@ ~ l N ]g 41 l'N l@ ]'44A l 6 l 6 ] 147 l@ | |||
42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o l It has been determined that the crack was most probably caused by the ; | 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o l It has been determined that the crack was most probably caused by the ; | ||
i i l methods used to install the spargers. Corrective action will be l i 2 1 determined after a full investigation is completed. I i I l 1 4 l l 7 8 9 80 ST % POWER OTHER STATUS Di RY DISCOVERY DESCRIPTION 32 7 | i i l methods used to install the spargers. Corrective action will be l i 2 1 determined after a full investigation is completed. I i I l 1 4 l l 7 8 9 80 ST % POWER OTHER STATUS Di RY DISCOVERY DESCRIPTION 32 7 | ||
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1 6 l Zl REUSE @DOPREux5El ,uOuuTOP4eTivnY ZlglNA @l l NA [ | 1 6 l Zl REUSE @DOPREux5El ,uOuuTOP4eTivnY ZlglNA @l l NA [ | ||
7 8 9 to 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION NA 1 7 l 0 l 0 l 0 l@l Z l@l l PERSONNE L INJURIES NUV8ER DESCRIPTION 1 a l 0 l 0 l 0 l@l12 NA 9977 917# | 7 8 9 to 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION NA 1 7 l 0 l 0 l 0 l@l Z l@l l PERSONNE L INJURIES NUV8ER DESCRIPTION 1 a l 0 l 0 l 0 l@l12 NA 9977 917# | ||
l 7 8 9 11 LLd8 - | l 7 8 9 11 LLd8 - | ||
80 LOSS OP OR DAMAGE TO PActLITY | 80 LOSS OP OR DAMAGE TO PActLITY 1 9 l Z lgl NA 79060407.53 ; | ||
1 9 l Z lgl NA 79060407.53 ; | |||
7 8 9 to 80 8, | 7 8 9 to 80 8, | ||
2 o IY ISSUEf@lDE CRIPTIONWeekly press release - October 26. 1978 l I'lIIIIIIIIIIII 1 8 9 to 68 69 80. ; | 2 o IY ISSUEf@lDE CRIPTIONWeekly press release - October 26. 1978 l I'lIIIIIIIIIIII 1 8 9 to 68 69 80. ; | ||
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{} | {} | ||
Jersey Central Power & Ught Company J N h'L . | Jersey Central Power & Ught Company J N h'L . | ||
EDH Madison Avenue at Punch Bowl Road Morristown, New Jersey 07960 (201)455-8200 OYSTER CREEK NUCLEAR GENERATING STATION Forked River, New Jersey 08731 Licensee Event Report Reportable Occurrence No. 50-219/78-21/1 T-_0_ | EDH Madison Avenue at Punch Bowl Road Morristown, New Jersey 07960 (201)455-8200 OYSTER CREEK NUCLEAR GENERATING STATION Forked River, New Jersey 08731 Licensee Event Report Reportable Occurrence No. 50-219/78-21/1 T-_0_ | ||
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~ | ~ | ||
: . ~., | : . ~., | ||
Reportable Occurrence No. 50-219/78-21/1T-0 Page 2 October 30, 1978 a complete break occur. A complete break and separation of the piping could reduce the capability of the core spray system Il to adequately wet the core during a LOCA condition. Further investigation of the indication and analysis of the consequences will provide for a more firm analysis of the occurrence. | Reportable Occurrence No. 50-219/78-21/1T-0 Page 2 October 30, 1978 a complete break occur. A complete break and separation of the piping could reduce the capability of the core spray system Il to adequately wet the core during a LOCA condition. Further investigation of the indication and analysis of the consequences will provide for a more firm analysis of the occurrence. | ||
Corrective Action Corrective action will be determined after a full investigation is complete. | Corrective Action Corrective action will be determined after a full investigation is complete. | ||
Failure Data Not applicable. | Failure Data Not applicable. | ||
2237 235}} | 2237 235}} |
Latest revision as of 19:28, 1 February 2020
ML19270G101 | |
Person / Time | |
---|---|
Site: | Oyster Creek |
Issue date: | 10/30/1978 |
From: | Ross D JERSEY CENTRAL POWER & LIGHT CO. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
Shared Package | |
ML19270G100 | List: |
References | |
LER-78-021-01T, LER-78-21-1T, NUDOCS 7906040253 | |
Download: ML19270G101 (2) | |
Text
.,.
f LICENSEE EVENT REPORT q%
CONTROL BLOCK: l l l l l l l (PLEAsE PRINT oR TYPE ALL REQUIRED INFoRMATION) 1 eh l0 l0 l0-l l0 0l 0l@4 l1 UCENSE
-l1 l1TYPE l1 Jol@l57 CAT l@
o 1 l 7 8 -l9 N lUCENSEEJ l 0CODE l C l'P l 1 l@150 l0UCENSE 14 l- l0NUM8En 25 26 58 CON'T o i
,"y l L l@l 0 l 5 l 0 10 l 0 l 2 l 1 19 l@l 1 lo i 1 l 71 71 8l@l 1 10 l 3-l 0 l 7 l 880 l@
7 8 60 81 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 I "On October 16, 1978. while oerformino inservica InRnectinn i nc lda *ha I o a I reactor vessel, an Indication was discovered on the sparger piping for l o 4 l Core Spray System II. The Indication which was at azimuth location I o s i 208' 'In the reactor vessel' appeared to extend 180* circumferential1y l o s 1 around the pipe. It was later established that there is a through wall l o 7 I crack for about 135* of the pipe's circumference. l oI8 l I 7 8 9 80
' CTOE "ISDE SuiCEE COMPONENT CODE Su,? D'E S E 7
o 9 8
l S l F l@ W@ lC l@ l Pl ll Pl El Xl Xl@ l B @l l@
9 to 11 12 13 18 19 20
,,, SEQUENTIAL OCCURRENCE REPORT REVIS3ON LE R/RO EVENT YEAR REPORT NO. CCDE TYPE N O.
O17 RE 7 l8 l l_l lQ l2 l } l l/l p l] l Tl [] lQl 21 22 23 24 26 27 28 29 30 31 32 N ACTC P NT MET HOURS SS I PCR B. SU L MA UP RER I33X l@l34X l@ l35C [@ l 36 l@ l 37 l l l l 40 l Y{@ ~ l N ]g 41 l'N l@ ]'44A l 6 l 6 ] 147 l@
42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o l It has been determined that the crack was most probably caused by the ;
i i l methods used to install the spargers. Corrective action will be l i 2 1 determined after a full investigation is completed. I i I l 1 4 l l 7 8 9 80 ST % POWER OTHER STATUS Di RY DISCOVERY DESCRIPTION 32 7
i s 8
Hl@ l0l0 0l@lm.
1 12 NA 44 l lB 45 l@l46 Inservice Inspecfion 80 l
1 6 l Zl REUSE @DOPREux5El ,uOuuTOP4eTivnY ZlglNA @l l NA [
7 8 9 to 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION NA 1 7 l 0 l 0 l 0 l@l Z l@l l PERSONNE L INJURIES NUV8ER DESCRIPTION 1 a l 0 l 0 l 0 l@l12 NA 9977 917#
l 7 8 9 11 LLd8 -
80 LOSS OP OR DAMAGE TO PActLITY 1 9 l Z lgl NA 79060407.53 ;
7 8 9 to 80 8,
2 o IY ISSUEf@lDE CRIPTIONWeekly press release - October 26. 1978 l I'lIIIIIIIIIIII 1 8 9 to 68 69 80. ;
NAME OF PREPARER n . oss PHONE: 201-455-8200 ,
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Jersey Central Power & Ught Company J N h'L .
EDH Madison Avenue at Punch Bowl Road Morristown, New Jersey 07960 (201)455-8200 OYSTER CREEK NUCLEAR GENERATING STATION Forked River, New Jersey 08731 Licensee Event Report Reportable Occurrence No. 50-219/78-21/1 T-_0_
Report Date October 30, 1978 Occurrence Date October 17, 1978 Identification of Occurrence Discovery of a crack in the core spray sparger piping. This event is con-sidered to be a reportable occurrence as defined in the Technical Specifi-cat ions, paragraph 6.9.2.a. (9).
Conditions Prior to Occurrence The plant was in a refueling shutdown. Reactor coolant less than 212*F.
Description of Occurrence On Monday, October 16, 1978, at approximately 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br />, an indication was discovered on the core spray sparger piping for System II.* Location of the indication was at an azimuth location of 208* in the reactor vessel.
From initial investigation, the indication appears to extend at least 180' circumferential1y around the pipe. Further investigation on October 19, 1978, established that there is a through wall crack for about 135' of the pipe's circumference.
- While performing inservice inspection'.
Apparent Cause of Occurrence Investigations into the cause of the crack have determined that the most probable cause was the methods used to install the spargers.
Analysis of Occurrence 2237 234 Cracking of the core spray sparger in the area found to have an indication could possibly cause a loss of redundaocy in the core spray systems should 1
1 b
Jersey Central Power & Ught Company is a Member of the General Pubhc Utihties System
~
- . ~.,
Reportable Occurrence No. 50-219/78-21/1T-0 Page 2 October 30, 1978 a complete break occur. A complete break and separation of the piping could reduce the capability of the core spray system Il to adequately wet the core during a LOCA condition. Further investigation of the indication and analysis of the consequences will provide for a more firm analysis of the occurrence.
Corrective Action Corrective action will be determined after a full investigation is complete.
Failure Data Not applicable.
2237 235