ML17266A408: Difference between revisions

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{{#Wiki_filter:NRCPORMSBBtTTTILlCEIVSKE EVENTREPORTUa~NUCLEARRECULATOR YCOMMISSION Q,19LICWSaacooa LICSNSE'IVM4ERCON'T00!'"2;;2"'Q>>
{{#Wiki_filter:NRC PORM SBB tT TTI LlCEIVSKE EVENT REPORT Ua~NUCLEAR RECULATOR Y COMMISSION Q, 1 9 LICWSaacooa LICSNSE'IVM4ER CON'T 00!'"2;;2"'Q>>
>>>>>>Q~Q21216>>Q4041SQCXET>iuMSER4444EVENTQ*TE>4>5AE)ORTo*4lpeVENTOESCRIPTlON ANOSROBABLFCONSECUENCEK
>>>>>>Q~Q 21216>>Q 40 41 SQCXET>iuMSER 44 44 EVENT Q*TE>4>5 AE)ORT o*4 lp eVENT OESCRIPTlON ANO SROBABLF CONSECUENCEK
+IQDuring100%poweroperation the&DPScomputerdroppedoffline.This6resultedinalossoftheCEApulsecountingbackuositionindication.
+IQ During 100%power operation the&DPS computer dropped off line.This 6 resulted in a loss of the CEA pulse counting backu osition indication.
'QtPLEAEEPRINTORTYPeALLREQUIREDINFORMATlONI I070~1"IIIIIII-Q'IQ~IQJP5>~151Actionwastakeninaccordance withT.S.1.3.3.d.TheDDPSwaslacedonlineandbackupCEApositionindication restoredin30minut'eswhichiswellwithinlimits.Thisisthe21st>eventforlossofDDPSandbackup~QB'ositionindication fortheCEAs.joOQ595Y5TEMcAvsdcAvlaCQMt.vALvaeoodSuaccoaCCM)ONE>IT CQOZ.svacooa5vacoosQWSLJS~82'JSI-'JQ4lnIII1ll35>95EOVENTIAIOCCVR)IENCK RE)ORTREVISION~lVENTVSAR44)QRTNo.eoodTvta~NOG'62~81~~007~m~03~L~~01111>4~5Jpll51ACTIONSu?VAEEtt'EC5>auTQQwN
'Q tPLEAEE PRINT OR TYPe ALL REQUIRED INFORMATlONI I 070~1"I I I I I I I-Q'I Q~IQ JP 5>~151 Action was taken in accordance with T.S.1.3.3.d.The DDPS was laced on line and backup CEA position indication restored in 30 minut'es which is well within limits.This is the 21st>event for loss of DDPS and backup~QB'osition indication for the CEAs.joOQ 5 9 5Y5TEM cAvsd cAvla CQMt.vALva eood Suaccoa CCM)ONE>IT CQOZ.svacooa 5vacoos Q WS LJS~8 2'JS I-'JQ 4 ln II I1 ll 35>9 5 EOV EN TI A I OCCVR)IENCK RE)ORT REVISION~lVEN T VSAR 44)QRT No.eood Tvta~NO G'62~81~~00 7~m~03~L~~0 11 11>4~5 Jp ll 51 ACTION Su?VAE Ett'EC 5>auTQQwN*I AcHMENT vteo'I)elMECQMS CQ>4tONaNT TAKEN ACTION CN tLANT 244T>2QQ>lovns+22 Sua>4>TTso)QRA<5vaL'Su)tv aR'4'I V t A Tu R 9 R a6SQ28 LJS LJS~.Q2S LJG Mie~iS>4 ap 41 4'1~4 4>CAUSE OEECRIPTION ANO CORREC6 IVE ACTiONS Q25 The loss of DDPS is software related.Investi5;ation of the software rob-~,'lem is currently in progress by the venaor and FP&L.CZ3 ACTIVITY CON TENT AELEASEO Ot RE(EASE A))OVNTQP ACTIVITY Q~Q~ZQ NA 5 9 IP I I 44)SRSQNNal ax)QSvnas 5 I I>2'1)SRSONNEL INJURIES 45 4)ACILITY6 MET>loo Qt 1TATVS"6)SV>ER OT>4ER STATl>S~QISCQVE>IV I'JS~S~MS 4 IP I'1 44 4544 NA LOCATION Ot RELEASa QSB Q7SCOVEAVOascR7)TICN QE2 Operator Observation Sp Jp 5 9 I I I 1 I.CSS Qt CR OAMAOZ TO)ACILITV Q42 Tv)a OESCRISTIQN EZ L~JQ2 1 5'p)VELIC'-TY ISSUES~SESCR:tT:ON Q IQ44 4'5 IP NA)6IE QP PREPARSR NA P.L.Pace 52$NRC USE Ol'ILY PHONE'05).>552-'3801 E/Cg~<<'r}}
*IAcHMENTvteo'I)elMECQMS CQ>4tONaNT TAKENACTIONCNtLANT244T>2QQ>lovns+22Sua>4>TTso
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'Su)tvaR'4'IVtATuR9Ra6SQ28LJSLJS~.Q2SLJGMie~iS>4ap414'1~44>CAUSEOEECRIPTION ANOCORREC6IVEACTiONSQ25ThelossofDDPSissoftwarerelated.Investi5;ation ofthesoftwarerob-~,'lemiscurrently inprogressbythevenaorandFP&L.CZ3ACTIVITYCONTENTAELEASEOOtRE(EASEA))OVNTQP ACTIVITYQ~Q~ZQNA59IPII44)SRSQNNal ax)QSvnas 5II>2'1)SRSONNELINJURIES454)ACILITY6 MET>looQt1TATVS"6)SV>EROT>4ERSTATl>S~QISCQVE>IV I'JS~S~MS4IPI'1444544NALOCATIONOtRELEASaQSBQ7SCOVEAVOascR7)TICN QE2OperatorObservation SpJp59III1I.CSSQtCROAMAOZTO)ACILITVQ42Tv)aOESCRISTIQN EZL~JQ215'p)VELIC'-TY ISSUES~SESCR:tT:ON QIQ444'5IPNA)6IEQPPREPARSRNAP.L.Pace52$NRCUSEOl'ILYPHONE'05).>552-'3801 E/Cg~<<'r}}

Revision as of 13:20, 7 July 2018

LER 81-007/03L-0:on 810131,DDPS Computer Dropped Off Line Causing Loss of Cambridge Electron Accelerator Pulse Counting Backup Position Indication.Cause Software Related. Computer Placed on Line & Indication Restored
ML17266A408
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
ML17209A803 List:
References
LER-81-007-03L, LER-81-7-3L, NUDOCS 8103130592
Download: ML17266A408 (2)
v • d • e


Text

NRC PORM SBB tT TTI LlCEIVSKE EVENT REPORT Ua~NUCLEAR RECULATOR Y COMMISSION Q, 1 9 LICWSaacooa LICSNSE'IVM4ER CON'T 00!'"2;;2"'Q>>

>>>>>>Q~Q 21216>>Q 40 41 SQCXET>iuMSER 44 44 EVENT Q*TE>4>5 AE)ORT o*4 lp eVENT OESCRIPTlON ANO SROBABLF CONSECUENCEK

+IQ During 100%power operation the&DPS computer dropped off line.This 6 resulted in a loss of the CEA pulse counting backu osition indication.

'Q tPLEAEE PRINT OR TYPe ALL REQUIRED INFORMATlONI I 070~1"I I I I I I I-Q'I Q~IQ JP 5>~151 Action was taken in accordance with T.S.1.3.3.d.The DDPS was laced on line and backup CEA position indication restored in 30 minut'es which is well within limits.This is the 21st>event for loss of DDPS and backup~QB'osition indication for the CEAs.joOQ 5 9 5Y5TEM cAvsd cAvla CQMt.vALva eood Suaccoa CCM)ONE>IT CQOZ.svacooa 5vacoos Q WS LJS~8 2'JS I-'JQ 4 ln II I1 ll 35>9 5 EOV EN TI A I OCCVR)IENCK RE)ORT REVISION~lVEN T VSAR 44)QRT No.eood Tvta~NO G'62~81~~00 7~m~03~L~~0 11 11>4~5 Jp ll 51 ACTION Su?VAE Ett'EC 5>auTQQwN*I AcHMENT vteo'I)elMECQMS CQ>4tONaNT TAKEN ACTION CN tLANT 244T>2QQ>lovns+22 Sua>4>TTso)QRA<5vaL'Su)tv aR'4'I V t A Tu R 9 R a6SQ28 LJS LJS~.Q2S LJG Mie~iS>4 ap 41 4'1~4 4>CAUSE OEECRIPTION ANO CORREC6 IVE ACTiONS Q25 The loss of DDPS is software related.Investi5;ation of the software rob-~,'lem is currently in progress by the venaor and FP&L.CZ3 ACTIVITY CON TENT AELEASEO Ot RE(EASE A))OVNTQP ACTIVITY Q~Q~ZQ NA 5 9 IP I I 44)SRSQNNal ax)QSvnas 5 I I>2'1)SRSONNEL INJURIES 45 4)ACILITY6 MET>loo Qt 1TATVS"6)SV>ER OT>4ER STATl>S~QISCQVE>IV I'JS~S~MS 4 IP I'1 44 4544 NA LOCATION Ot RELEASa QSB Q7SCOVEAVOascR7)TICN QE2 Operator Observation Sp Jp 5 9 I I I 1 I.CSS Qt CR OAMAOZ TO)ACILITV Q42 Tv)a OESCRISTIQN EZ L~JQ2 1 5'p)VELIC'-TY ISSUES~SESCR:tT:ON Q IQ44 4'5 IP NA)6IE QP PREPARSR NA P.L.Pace 52$NRC USE Ol'ILY PHONE'05).>552-'3801 E/Cg~<<'r

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