special rept:on 930525,nonsafety-grade standby …accei erate+ document dist ution system regulat~...
TRANSCRIPT
ACCEI ERATE+ DOCUMENT DIST UTION SYSTEMREGULAT~ INFORMATION DISTRIBUTIO YSTEM (RIDS)
ACCESSION NBR:9306160045 DOC'DATE: 93/06/10 NOTARIZED: NO DOCKETFACIL:50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251
AUTH.NAME AUTHOR AFFILIATIONPLUNKETT,T.F. Florida Power & Light Co.
RECIP.NAME RECIPIENT AFFILIATIONEBNETER,S.D. Region 2 (Post 820201)
SUBJECT: Special rept:on 930525,nonsafety-grade standby feedwaterpumps isolated for 18 h & 15 minutes to establish boundaryto repair valve 4-20-130.Standby feedwater sys supplyreturned to svc.Marked-up administrative procedure encl.
DTSTRZBDTTON CODE: TE22D COPIES RECEIVED:LTR ENCL i STZE: igTITLE: 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.NOTES:
R
D
RECIPIENTID CODE/NAME
PD2-2 LARAGHAVAN,L
INTERNAL: ACNWAEOD/DSP/TPABNRR/DE/EELBNRR/DRCH/HHFBNRR/DRCH/HOLBNRR/DRPW/OEABNRR/DSSA/SPLB
/REVILE/ 02RGN2 ~FILE 01
COPIESLTTR ENCL
1 11 1
2 21 11 11 11 11 11 11 11 1
RECIPIENTID CODE/NAME
PD2-2 PD
AEOD/DOAAEOD/ROAB/DSPNRR/DE/EMEBNRR/DRCH/HICBNRR/DRIL/RPEBNRR/DRSS/PRPBNRR/DSSA/SRXBRES/DSIR/EIB
COPIESLTTR ENCL
1 1
1 12 21 11 11 12 21 11 1
D
D
EXTERNAL: EG&G BRYCEEJ.HNRC PDRNSIC POORE,W.
2 21 11 1
L ST LOBBY WARDNSIC MURPHY,G.ANUDOCS FULL TXT
1 11 11 1
R
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NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE) CONTACI'HE DOCUMENT CONTROL DESK,
ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION
LISTS FOR DOCUMENTS YOU DON'T NEED!
D
TOTAL NUMBER OF COPIES REQUIRED: LTTR 30 ENCL 30
4l
f'.0. Box 029100, Miami, FL, 33102-9100
..L-93-15010 CFR 550.36"
Stewart D. EbneterRegional Administrator, Region IXU. S. Nuclear Regulatory Commission101 Marietta St. I N W I Suite 2900Atlanta, GA 30323
Mr. Stewart D. Ebneter:
Re: Turkey Point Unit 4Docket No. 50-251Special Report — Standby Feedwater PumpsA and B Pum s Out of Service Due to Valve Re air
Both non-safety grade standby feedwater pumps were madeinoperable in order to establish a boundary to allow therepair of a common valve. In accordance with TechnicalSpecifications 3.7.1.6 and 6.9.2, the attached Special Reportprovides details of the event.
Should there be any questions on this information pleasecontact us.
Very truly yours,
T. F. PlunkettVice PresidentTurkey Point Nuclear
TFP/JEK/jk
Attachment
cc: USNRC, Document Control Desk, Washington D.C.Ross C. Butcher, Senior Resident Inspector, USNRC, TurkeyPoint Plant
>500" 3930hib0045 9306i0PDR ADOCK 0500025iS PDR
an FPL Group company
II 0
L-93-150AttachmentPage 1
SPECIAL REPORT
BOTH STANDBY FEEDWATER PUMPS UNAVAILABLETO UNIT 4
PURPOSE
Technical Specification 3.7.1.6.b.2 requires thesubmission of a special report to the NRC if both standbyfeedwater pumps are inoperable'he Technical Specifi-cation requires the report to describe the cause of theinoperability, the actions taken and the schedule forrestoration.
Back round:
Turkey. Point Nuclear has two non-safety grade standby feedwaterpumps installed to supply feedwater to either the Unit 3 or Unit 4steam generators, if needed. During the Unit 4 startup afterrefueling, valve 4-20-130, the upstream isolation valve for themain feedwater regulating valve bypass line, was found to needrepair. ~ This valve is the inlet isolation valve for flow controlvalve 4-479-. , To isolate valve 4-20-130, a ,boundary must beestablished around the valve such that no water would be allowedinto the repair zone during the work process. The establishment ofthis boundary required the isolation of not only the normalfeedwater path to the steam generators, but also the standbyfeedwater path, as well. Normal auxiliary feed water paths weremaintained and used during the repair evolution. Unit 4 wasmaintained in Mode 2 during the repair process. Unit 3 was notaffected by this isolation and remained at 100% rated power withstandby feedwater available.
EVENTS
At 0130 on May 25, 1993, plant personnel established a boundary toallow the repair of valve 4-20-130. This resulted in the isolationof the non-safety grade standby feedwater pumps from. Unit 4. Theboundary was lifted and the flow path availability using thestandby feedwater pumps was reestablished on May 25, 1993, at 1945.The total time during which both the A and B standby feedwaterpumps were not available to Unit 4 was 18 hours and 15 minutes.Notification to the NRC was made at 1045 on May 25, 1993, inaccordance with Technical Specification 3.7.1.6.b.1.
II
L-93-150AttachmentPage 2
CAUSE AND ACTIONS TAKEN:
The cause of both pumps being out of service simultaneously, asdiscussed above, was the repair of valve 4 20 130, the upstreamisolation valve for the main feedwater regulating valve bypassline. Valve 4-20-130, and the standby feed water to Unit 4, wereisolated..at 0130 on May 25, 1993 for repair of the valve.
SCHEDULE FORRESTORATION'he
standby feedwater system supply to Unit 4 was returned toservice after repair of the valve at 1945 on May 25, 1993.
0
SEVENTY LEVEL
A. Q 3 working daysB. I&10calendar days
C. C3 25 calendar days
D. P Other. DAm
CONDITIONREPORT
Q CHECK IF OUTAGE RELATED
.PAGE I OF
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II
PLANT SYSTEMS
STANDBY FEEDWATER SYSTEM
LIMITING CONDITION FOR OPERATION
3,7. l. 6 Two standby feedwater pumps shall be OPERABLE" and at least 60,000gallons of water ('vailable volume), shall be in the Demineralized WaterStorage Tank"".
APPLICABILITY: MODES 1, 2 and 3
ACTION:
With one standby feedwater pump inoperable, restore the inoperable pumpsto available status within 30 days or submit a SPECIAL REPORT per 3..7. l. 6d.
With both standby feedwater pumps inoperable.
1. Within 24 hours, notify -,the NRC and provide cause for inoperabilityand plans to restore pump(s) to OPERABLE status and,
2. Submit a SPECIAL REPORT per 3.7.1.6d.
d.
With less than 60,000 gallons of water in the Demineralized Water StorageTank restore the available volume to at least 60,000 gallons within 24hours or submit a SPECIAL REPORT per 3.7. 1.6d.
If a SPECIAL REPORT is required per the above specifications submit areport describing the cause of the inoperability, action taken and aschedule for restoration within 30 days in accordance with 6'.9.2.
SURVEILLANCE RE UIREMENTS
4.7. 1.6. 1 The Demineralized Water Storage tank water volume shall be deter-s>ned to be within limits at least once per 24 hours.
:-4.7.1.6.2 At least monthly verify the standby feedwater pumps 'are OPERABLE bytesting in recirculation on a STAGGERED TEST BASIS.
7 1.6.3 At least once per 18 months, verify operability of the respectivestandby feedwater pump by powering from the non-safety grade diesel generators
,, ~~4 providing feedwater to the steam generators.
These pumps do not require plant safety 'related emergency power sources forooerability and the flowpath is normally isolated.The Oemineralized Water Storage Tank is non-safety grade.
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0-ADM-212
Unit No.
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(Y/N)
In-Plant E i ment Clearance Orders
AXTACHMEHZ 4 (Page 1 of 2)
CLEARANCE ORDERIV'd By
agd: 5iApproYal Date:
07 29 92
IVed By
Clear.Order
4-93-05-17
SystEBII g
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Originator
BEAGL'ES, STEVE
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Clearanoe g:
Zn-Plant E i ment Clearance OrdersATTACHMENT 4
(Page 2 of 2)
CLEARANCE ORDER
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Clearance f:
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Zn-Plant E i ment Clearance OrdersATTACHMENT 4
(Page 2 of 2)
CLEARANCE OROER
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ADM STRATIVE PROCEDURE 0103.12, P 6IFICATION OF EVENTS TO THE NR
8/22/91
8.0 Instructions:
NOTE 1: If any individual cannot be contacted, the responsibleindividual should cont'.nue with other requirednotifications.
NOTE 2: Consult Appendix C for,additional guidance on significantevent notification.
INITIALTIME
~~~ / ~ 4'.1 For anyshall fievents listed in Appendix A of this procedure, the PS-N
ll out Appendix 8 and notify:"l /1<'l~ &
pi~: per gpAV(
ygrf(pM7ii+
8.1.1 The Duty Call Supervisor or designee by commerci altelephone.
NOTE 1: If the Duty Call Supervi sor or designeecannot be contacted by commercial tel ephone,contact should be made via the pager numberlisted on the Duty Call Supervisor Schedule.
NOTE 2: The 'assigned Duty Call Supervisor, -': ardesignee, acts as Duty Call 'Supervisor duringthe scheduled duty period on a 24 hour basis.
8. 1.2 The Hazardous Materials Coordinator for even sinvolving hazardous materials.
8.1.3 The NRCOC as soon as possible within time limi sspecified in Appendix A
1. - Notify the NRCOC via the ENS,telephone, except forreports to the Region II office required by 10CFR20.205.
8.2
2. When the ENS telephone is inoperable, the NRCOC canbe contacted via commercial telephone using thenumbers listed in the Emergency Response Directory.
Followup,notifications shall be made as. specified in Appendix Aof this procedure.
The PS-N shal 1 document notification to NRC recordingappropriate information in the PS-N log book.
"AUTION: To reduce the likelihood of relaying inaccura=einformation, only the Duty Call Supervisor or hisdesignee should perform the notificat ions to theplant management staff and the NRC ResidentInspector.
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MODE OF OPEhATION ESTIMATE FOh
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PLANNED IIELKASE OHGOINQ TEhMJNATEDQASEOLIS REI.EASE UNPLANNED RELEASELIQUID RELEASE
MONITORED OFFSITE RKLEASE TL EXCEfDED i.. hM ALAhMS AIIEASEVACUATEDOf F sITE PRDTEcTIvf ACTIONS IIEcOMM ENDED 'Stat a rataata patri in pater>orion.
UHMOHITOIIEDPERSONNEL EXPOSf 0 OR CONTAMINATED
RADIOLOGICALRfLEAsfs: cHEcK 0 R F II L IN AppLtcABLE ITEMS ldracife daiaraiaapranarena anourd pa cowrad in awnr daacnpriont
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0+ 4/min
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PLANT STACK COHDENSERIAIR EJECTOR MAINSTEAM LINE SQ SLOWDOWN OTHER
RAD MONITOR READINGS:
ALARMSETPOINTS'it
applicaplal
RcS Qh sG TUBE LEAKs;, cHEcK oR F ILL IN AppLIcABLf.ITEMs: fdiacife dalairaioapunarionr anourd pa covered in aionr daaci>prionl
LOCATION OF THE LEAK la g., SG u, io/io, ppa, atc li
LEAK RATEI UNITS; cpm/gpd TS. LIMITS SUDDEN OR LDNQ TERM~DEY purENTI
LEAK START DATE: TIME: COOLANT ACTIVITY4 U TSI PRIMARY SECONDARY
LIST Of SAfETY RELATED EQ PMEHT'HOT OPERATION*LI
EVENT OESCRIPTIOM (Contrnued /lorn front)
Oi ii
EVENT NOTlRCATlON WORKSHEET
UA. NVCLEAR REOVLATORYCOeuetceIONOFERATIONS CENTER
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ALEIIT
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50.12 HOM-EMERGENCY
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(E) oecredsd Condition
0I)IA) Unsnetrsed Oendilien
(E)O)I Outside Orden Rss»
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(iii) Hurncene
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FHYSICALSECURITY PL71) VII) (4)(O) 'ktieet»nI TRAMSFORTATION (is) IAI he»ese ) EX Aoo 0Qii) Otlt Neturet FI»nen»non
20.e(O MATEhIA(lEXFOSURE ( fCCS O»cneree to RCS ( I Uqhe»eee>SXAOOROTHE It CI Q (g, P sl Lost EHS ONVte Medias(
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Inttude Srsttsnt attested. sets»r» 4 eeir inhmusf ufnels. tsures, e(»tc ot eront on o»nl oct)one (cern or S»nned. etc.
NOTIFICATIONSHRC RESIDENT
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AEO UNMONITORED OFF SITE RELEASE T~ fltCEEDEO 4 hM ALAhMS AhEAS EVACUATEQ
HEL EXFOSE0 Oh CONTAMINATf0 OFFSITE ohoTEcTIYE AcTIDHS AEcoMMEHDE0 'state reteete oetrr rrt detcrnxsort.
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10 uG
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Total Actrrrty IGI LIMIT HOO GUI0 E
1000 G
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54
F»»
»Q'hRAD MONITOR READINGS:
F LANTSTACK CONDEHSEh/AIR EJECTOR MAINSTEAM LINE SG 4 LOWOOWH OTHER
ALARMSfTFO IHTS:
% T . I/Ieoo/icoolr/
ACS OR SG TUbf LEAKSICHE CK Olt FILL IH AFFLICASLE ITEMS:/~rwaek~eLOCATIONOF THE LEAKle.. SIT o, ro/ro. Oere. eto//
LEAKhATE: UNITS: OOtnt/eod TS. LIMITS SUODEHOR LONG TEhMOEV
LEAKSTAhT DATE: TIMEI COOLANT ACTIVtTVWl TS: FRIMARY SECONOAh Y
LIST OF SAF ETY RfLATED EO T OFERATIONALI
EVENT OESCRIFTION fContrnMetf from ffonff
i'
152
IFT RESPONSIBILITY IN ACCORDANCE W'~
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