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| issue date = 02/26/1981
| issue date = 02/26/1981
| title = 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
| title = 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
| author name = PACE P L
| author name = Pace P
| author affiliation = FLORIDA POWER & LIGHT CO.
| author affiliation = FLORIDA POWER & LIGHT CO.
| addressee name =  
| addressee name =  
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=Text=
=Text=
{{#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>>
{{#Wiki_filter:NRC PORM SBB                                                                                                                       Ua    ~  NUCLEAR RECULATOR Y COMMISSION tT TTI LlCEIVSKE EVENT REPORT
>>>>>>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
                                                                            'Q                      tPLEAEE PRINT OR TYPe ALL REQUIRED INFORMATlONI 070~1                              "I I
+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                            'I      Q~IQ Q~Q I
'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}}
1     9         LICWSaacooa I        I Q,          I          I LICSNSE 'IVM4ER I
JP    5>  ~151 CON'T 00!                 '"2;;2"'Q>> 40           41 SQCXET >iuMSER                   44     44       EVENT Q*TE               >4         >5 21216>>
AE)ORT o* 4         lp Q
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.
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
~QB well within limits. This is the 21st> event for loss of DDPS and backup
          'osition
                                                                                            ~8 indication for the                         CEAs.
joOQ 5   9 5Y5TEM           cAvsd         cAvla                                                             CQMt.             vALva svacooa            5vacoos
                                                                                  ~
eood         Suaccoa                     CCM)ONE>IT CQOZ.
ln Q WS   II LJS I1                ll                              35 2'JS I-'JQ
                                                                                                                                          >9 4
5 EOV EN TI A I                         OCCVR)IENCK             RE)ORT                   REVISION ~
G'62 lVENT VSAR
                                      ~81                  ~            ~00 44)QRT No.
                                                                                                                      ~03 eood                   Tvta
                                                                                                                                              ~L
                                                                                                                                                        ~
                                                                                                                                                              ~           NO
                                                                                                                                                                      ~iS 7             ~m                                                               ~0 11       11                               >4                       ~5                       Jp             ll         51 ACTION Su?VAE                   Ett'EC         5>auTQQwN                                     *ISua>4>TTso AcHMENT        vteo
                                                                                                                                )QRA<5vaL
                                                                                                                                            'I      )elMECQMS '
                                                                                                                                                    'Su)tv aR CQ>4tONaNT 4'I Vt A Tu R 9 R TAKEN ACTION                      tLANT        244T>2QQ                    >lovns +22 LJG Mie CN a6SQ28                         LJS LJS           >4                                       ap
                                                                                                                .Q2S 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   4 4
5
            )ACILITY6 1TATVS I'JS ACTIVITY CON TENT 9
                              ~S~
IP AELEASEO Ot RE( EASE
                ~Q ~ZQ         IP "6 )SV>ER
                    )SRSQNNal ax)QSvnas II I'1 NA OT>4ER STATl>S A))OVNTQP ACTIVITY        Q
                                                                                    ~ MS 44 44 MET>loo Qt QISCQVE>IV 4544 45 NA Q7SCOVEAVOascR7)TICN QE2 Operator Observation LOCATION Ot RELEASa QSB Sp Jp 5
                    ) SRSONNEL II      >2 INJURIES
                                                  '1 5    9               II      I1 I.CSS Qt CR OAMAOZ TO )ACILITVQ42 Tv)a       OESCRISTIQN EZ     1 L~JQ2 5     'p
                      )VELIC'-TY                                                                                                                                   NRC USE Ol'ILY 52$
ISSUES~ SESCR:tT:ON IQ44 Q                                   NA 4     '5         IP NA)6IE QP PREPARSR P.L. Pace                                                   PHONE'05 ) .>552-'3801
 
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Latest revision as of 09:55, 4 February 2020

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
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)


Text

NRC PORM SBB Ua ~ NUCLEAR RECULATOR Y COMMISSION tT TTI LlCEIVSKE EVENT REPORT

'Q tPLEAEE PRINT OR TYPe ALL REQUIRED INFORMATlONI 070~1 "I I

- Q 'I Q~IQ Q~Q I

1 9 LICWSaacooa I I Q, I I LICSNSE 'IVM4ER I

JP 5> ~151 CON'T 00! '"2;;2"'Q>> 40 41 SQCXET >iuMSER 44 44 EVENT Q*TE >4 >5 21216>>

AE)ORT o* 4 lp Q

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.

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

~QB well within limits. This is the 21st> event for loss of DDPS and backup

'osition

~8 indication for the CEAs.

joOQ 5 9 5Y5TEM cAvsd cAvla CQMt. vALva svacooa 5vacoos

~

eood Suaccoa CCM)ONE>IT CQOZ.

ln Q WS II LJS I1 ll 35 2'JS I-'JQ

>9 4

5 EOV EN TI A I OCCVR)IENCK RE)ORT REVISION ~

G'62 lVENT VSAR

~81 ~ ~00 44)QRT No.

~03 eood Tvta

~L

~

~ NO

~iS 7 ~m ~0 11 11 >4 ~5 Jp ll 51 ACTION Su?VAE Ett'EC 5>auTQQwN *ISua>4>TTso AcHMENT vteo

)QRA<5vaL

'I )elMECQMS '

'Su)tv aR CQ>4tONaNT 4'I Vt A Tu R 9 R TAKEN ACTION tLANT 244T>2QQ >lovns +22 LJG Mie CN a6SQ28 LJS LJS >4 ap

.Q2S 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 4 4

5

)ACILITY6 1TATVS I'JS ACTIVITY CON TENT 9

~S~

IP AELEASEO Ot RE( EASE

~Q ~ZQ IP "6 )SV>ER

)SRSQNNal ax)QSvnas II I'1 NA OT>4ER STATl>S A))OVNTQP ACTIVITY Q

~ MS 44 44 MET>loo Qt QISCQVE>IV 4544 45 NA Q7SCOVEAVOascR7)TICN QE2 Operator Observation LOCATION Ot RELEASa QSB Sp Jp 5

) SRSONNEL II >2 INJURIES

'1 5 9 II I1 I.CSS Qt CR OAMAOZ TO )ACILITVQ42 Tv)a OESCRISTIQN EZ 1 L~JQ2 5 'p

)VELIC'-TY NRC USE Ol'ILY 52$

ISSUES~ SESCR:tT:ON IQ44 Q NA 4 '5 IP NA)6IE QP PREPARSR P.L. Pace PHONE'05 ) .>552-'3801

E

/ Cg ~ <<'r