ML17266A410: Difference between revisions

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{{#Wiki_filter:HRCPORMSEE lZ77lLICENSEEEVENTREPORTUSNUCLEARRECULATORY COMMISSION 1CON'T~O1CONTROLEI.CCIEIIII'QiIPSEPAINTORTYPEALIREOUIREOINPORMATIONl IFlISLIS1Qz>HI-0ttlIHIil9-99QZ49UCE.'l$4$CQQE14'5UCSNS4NUM4fB1$IlIIQ<<~Qi1104NSETYS'E40Si<<AT5$8''i<<iii8i$0$1OCTETNVMEEA'$4$EVENTQAT$1415EVENTOESCRIPTION ANO>ROSAELECONSECUENCES QIODuring100/poweroerationtheDDPScornuterdrooe2I216181Q9AfrOATCATE10resultedinalossoftheCEApulsecountinbackuositionindicatin.Actionwastakeninaccordance withT.S.1.3.3.d.
{{#Wiki_filter:HRCPORMSEE lZ 77l LICENSEE EVENT REPORT U S NUCLEAR RECULATORY COMMISSION 1 CON'T~O 1 CONTROL E I.CCIEI I I I'Qi IPSE PAINT OR TYPE ALI REOUIREO INPORMATIONl I Fl I S LIS 1Qz>HI-0 ttlIH Iil 9-9 9 QZ4 9 UCE.'l$4$CQQE 14'5 UCSNS4 NUM 4f B 1$I l I IQ<<~Qi 1104NSE TYS'E 40 Si<<AT 5$8''i<<iii 8 i$0$1 OCTET NVMEEA'$4$EVENT QAT$14 15 EVENT OESCRIPTION ANO>ROSAELE CONSECUENCES QIO During 100/power o eration the DDPS corn uter droo e 2I21 61 8 1 Q9 Af rOAT CATE 10 resulted in a loss of the CEA pulse countin backu osition indicati n.Action was taken in accordance with T.S.1.3.3.d.
TheDDPSwaslineandbackupCEApositionindication restoredin30minuteswhichiswellwithinlimits.,Thisisthe22ndeventforlossofDDPSandbackup.positionindication fortheCEA's.5Y5TEMCAVSECAU5$CCMBIYALYECootCQQE5USCQOECCMSONEHT CQOE5VSCQOSSUECQOS RLJS4ISLJS~Gi48L'JSa91011IIla1919~0SEQUENTIAL OCCJABENCE BEPOATIIEVISION
The DDPS was line and backup CEA position indication restored in 30 minutes which is well within limits., This is the 22nd event for loss of DDPS and backup.position indication for the CEA's.5Y5TEM CAVSE CAU5$CCMBI YALYE Coot CQQE 5USCQOE CCMSONEHT CQOE 5VSCQOSSUECQOS RLJS 4IS LJS~G i48 L'JS a 9 10 11 II la 1919~0 SEQUENTIAL OCCJABENCE BEPOAT IIEVISION~LEBIBO EVENTY8~4>
~LEBIBOEVENTY8~4>
llfrOATNO COO E 1Y8E~No, Q'-~>>m~i~~m~uLIW.I I II 15 I~1~11<<5<<9<<0~)II ACTlON J AVTVAE tr SEC 514UTQOWN ATTACIiMENT'l)llO<<4 41IIMEC<<JMW CQMSONENT TAKEN Ai.TIQN CN PLANT'tTNOQ NOVAS ZZ SVSMITTSO rOAM>U$.SvrrUEB MANVPACTUAEB 44ihJS HIS 4iS i'LJ8 LJS i-'8~8 IO 54-A 14 51~40 41 45 44, 41 CAUSP.OESCRIPTION ANO CORREC IVE ACTIONS QZT 5 The loss of DDPS is sof tware re lated.Inves t i gat ion of the sof tware rob-lem is currently in progress by the vendor and FP&L.1 a 9$4CIUTY STA11is'.ro84EB.OTNEBSTAIVS QZO i8i L'JS~i'S~9 10 II II 44 ACTIVITY CQNTENT IIELEASEO OP O'EI fASt'MQVNl'QP ACIIVITY QZS~~QO.NA 1 5 9 10 Il 44 rSA'SQNNE L tlCAOSUBES
llfrOATNO COOE1Y8E~No,Q'-~>>m~i~~m~uLIW.IIII15I~1~11<<5<<9<<0~)IIACTlONJAVTVAEtrSEC514UTQOWN ATTACIiMENT'l)llO<<4 41IIMEC<<JMW CQMSONENT TAKENAi.TIQNCNPLANT'tTNOQ NOVASZZSVSMITTSO rOAM>U$.SvrrUEBMANVPACTUAEB 44ihJSHIS4iSi'LJ8LJSi-'8~8IO54-A1451~40414544,41CAUSP.OESCRIPTION ANOCORRECIVEACTIONSQZT5ThelossofDDPSissoftwarerelated.Investigationofthesoftwarerob-lemiscurrently inprogressbythevendorandFP&L.1a9$4CIUTYSTA11is'.ro84EB.
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OTNEBSTAIVS QZOi8iL'JS~i'S~910IIII44ACTIVITYCQNTENTIIELEASEO OPO'EIfASt'MQVNl'QP ACIIVITYQZS~~QO.NA15910Il44rSA'SQNNE LtlCAOSUBES
'NUMSEBTYSEOESCPIrnON Q~~r~F999'O~~O"8A15)lIlIIISSBSCNNELINIURIES~ia~SP9Q<<i"NAufTNQOOl'ISCQVf BY4$4$45olscovEBY olscBISTIQN Qsz0eratorObservation LOCATIONOPRELEASEQENA5010101I9I'II'I1aaNAAIEOPPREPARERI.c55opcll5AM*etoAAQIUTYQ4$.YSSOESCBISTIQN MOZ1'0SVSUC'>>IssvzoofscBln..oN 9I~'Q44'1'.0'AP.L.Pace10NRCUSEOHI.Y4$$9IOrNONEI305552-3801' 8103>607~8.
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Revision as of 12:20, 7 July 2018

LER 81-008/03L-0:on 810202,digital Data Processing Sys Dropped Off Line Resulting in Loss of Control Element Assembly Pulse Counting Backup Position Indication.Caused by software-related Problems.Investigation Continuing
ML17266A410
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 02/26/1981
From: PACE P L
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17209A814 List:
References
LER-81-008-03L, LER-81-8-3L, NUDOCS 8103160758
Download: ML17266A410 (2)
v • d • e


Text

HRCPORMSEE lZ 77l LICENSEE EVENT REPORT U S NUCLEAR RECULATORY COMMISSION 1 CON'T~O 1 CONTROL E I.CCIEI I I I'Qi IPSE PAINT OR TYPE ALI REOUIREO INPORMATIONl I Fl I S LIS 1Qz>HI-0 ttlIH Iil 9-9 9 QZ4 9 UCE.'l$4$CQQE 14'5 UCSNS4 NUM 4f B 1$I l I IQ<<~Qi 1104NSE TYS'E 40 Si<<AT 5$8i<<iii 8 i$0$1 OCTET NVMEEA'$4$EVENT QAT$14 15 EVENT OESCRIPTION ANO>ROSAELE CONSECUENCES QIO During 100/power o eration the DDPS corn uter droo e 2I21 61 8 1 Q9 Af rOAT CATE 10 resulted in a loss of the CEA pulse countin backu osition indicati n.Action was taken in accordance with T.S.1.3.3.d.

The DDPS was line and backup CEA position indication restored in 30 minutes which is well within limits., This is the 22nd event for loss of DDPS and backup.position indication for the CEA's.5Y5TEM CAVSE CAU5$CCMBI YALYE Coot CQQE 5USCQOE CCMSONEHT CQOE 5VSCQOSSUECQOS RLJS 4IS LJS~G i48 L'JS a 9 10 11 II la 1919~0 SEQUENTIAL OCCJABENCE BEPOAT IIEVISION~LEBIBO EVENTY8~4>

llfrOATNO COO E 1Y8E~No, Q'-~>>m~i~~m~uLIW.I I II 15 I~1~11<<5<<9<<0~)II ACTlON J AVTVAE tr SEC 514UTQOWN ATTACIiMENT'l)llO<<4 41IIMEC<<JMW CQMSONENT TAKEN Ai.TIQN CN PLANT'tTNOQ NOVAS ZZ SVSMITTSO rOAM>U$.SvrrUEB MANVPACTUAEB 44ihJS HIS 4iS i'LJ8 LJS i-'8~8 IO 54-A 14 51~40 41 45 44, 41 CAUSP.OESCRIPTION ANO CORREC IVE ACTIONS QZT 5 The loss of DDPS is sof tware re lated.Inves t i gat ion of the sof tware rob-lem is currently in progress by the vendor and FP&L.1 a 9$4CIUTY STA11is'.ro84EB.OTNEBSTAIVS QZO i8i L'JS~i'S~9 10 II II 44 ACTIVITY CQNTENT IIELEASEO OP O'EI fASt'MQVNl'QP ACIIVITY QZS~~QO.NA 1 5 9 10 Il 44 rSA'SQNNE L tlCAOSUBES

'NUMSEB TYSE OESCPIrnON Q~~r~F999'O~~O" 8A 1 5)l I lI II SSBSCNN EL INIU RIES~ia~SP 9 Q<<i" NA ufTNQO Ol'ISCQVf BY 4$4$45 olscovEBY olscBISTIQN Qsz 0 erator Observation LOCATION OP RELEASE QE NA 50 10 10 1 I 9 I'I I'I 1 a a NAAIE OP PREPARER I.c55 op cll 5AM*et o AAQIUTY Q4$.YSS OESCBISTIQN MOZ 1'0 SVSUC'>>Issvzo ofscBln..oN 9 I~'Q44'1'.0'A P.L.Pace 10 NRC USE OHI.Y 4$$9 IO rNONEI 305 552-3801'8103>60 7~8.

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