ML20198B556
| ML20198B556 | |
| Person / Time | |
|---|---|
| Issue date: | 10/28/1985 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Thompson H Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8511060525 | |
| Download: ML20198B556 (27) | |
Text
OCT 2 81985 MEMORANDUM FOR:
Hugh L. Thompson, Jr., Director Division of Licensing FROM:
Dennis M. Crutchfield, Assistant Director for Safety Assessment, DL
SUBJECT:
SUMMARY
OF THE OPERATING REACTORS EVENTS MEETING ON OCTOBER 21, 1985 - MEETING 85-20 On October 21, 1985, an Operating Reactor Events meeting (85-20) was held to brief the Office Director, the Division Directors and their representatives on events which occurred since our last meeting on October 7,1985. The list of attendees is included as Enclosure 1.
The events discussed and the significant elements of these events are presented in Enclosure 2.
In addition, the assignment of follow-up review responsibility was discussed. The assignments made during this meeting and the status of previous assignments are presented in Enclosure 3.
Completion dates hwe been assigned for items in Enclosure 3.
Each assignee should review Enclosure 3 with regard to their respective responsibilities.
Note that several assignees are approaching the due date.
Please be responsive and advise ORAB (D. Tarnoff, x29526) if the target completion date cannot be met.
Dennis M. Crutchfield, Assistant Director for Safety Assessment, DL
Enclosures:
DISTRIBUTION As Stated Central Files NRC PDR cc w/ encl:
ORAB Rdg See next page ORAB Members OBA S:
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OCT 2 81985 MEMORANDUM FOR:
Hugh L. Thompson, Jr., Director Division of Licensing FROM:
Dennis M. Crutchfield, Assistant Director for Safety Assessment, DL
SUBJECT:
SUMMARY
OF THE OPERATING REACTORS EVENTS MEETING ON OCTOBER 21, 1985 - MEETING 85-20 On October 21, 1985, an Operating Reactor Events meeting (85-20) was held to brief the Office Director, the Division Directors and their representatives on events which occurred since our last meeting on October 7, 1985. The list of attendees is included as Enclosure 1.
The events discussed and the significant elements of these events are presented in Enclosure 2.
In addition, the assignment of follow-up review responsibility was discussed. The assignments made during this meeting and the status of previous assignments are presented in Enclosure 3.
Completion dates have been assigned for items in Enclosure 3.
Each assignee should review Enclosure 3 with regard to their respective responsibilities.
Note that several ass:3nees are approaching the due_date. Please be responsive and advise ORAB (D. Tarnoff, x29526) if the target completion date cannot be met.
Denn s M. Crutchfield, sistant Director for Safety Assess ent, DL
Enclosures:
As stated cc w/ encl:
See next page L
Hugh L. Thompson, Jr..
cc:
H. Denton R. Hernan R. Bernero F. Schroeder J. Knight D. Silver T. Speis J. Lyons C. Heltemes D. Brinkman T. Novak E. Weiss W. Russell R. Baer J. Taylor G. Vissing E. Jordan B. Rothman F. Rowsome H. Bailey W. Minners S. Miner L. Shao M. Licitra
.T.
Ippolito P. Sears G. Lainas L. Engle E. Sullivan M. J. Campagnone D. Beckhan R. Singh G. Edison E. Butcher K. Seyfrit J. Stolz T. Murley, R-I R. Bosnak J. Nelson Grace, R-II G. Knighton J. Keppler, R-III W. Butler R. D. Martin, R-IV G. Rivenbark J. B. Martin, R-V G. Lanik R. Starostecki, R-I R. Walker, R-II C. Norelius, R-III E. Rossi, IE P. Baranowski D. Kirsch, R-V R. Denise, R-IV
ENCLOSURE I LIST OF ATTENDEES OPERATING REACTORS EVENTS BRIFFING (85-20) 1 OCTOBER 21, 1985 Name Division Name Division M. Caruso NRR/0RAB K. Seyfrit AEOD S. Newberry NRR/0RAB R. Freeman AEOD
- 0. Gonnley IE/DQAUT D. Zukor AEOD P. Sears NRR/DL/0RB3 G. Vissing NRR/DL/0RB4 C. McCracken NRR/DL/ ORB 4 S. Rubin AEOD G. Kalman NRR/0RB4 I. Ahmed NRR/PSB B. Rothman NRR/GSB T. M. Novak NRR/DL/ADL E. Butcher NRR/DL/0RB3 H. Thompson, Jr.
NRR/DL R. Perfetti NRR/DL/ ORB 3 H. Denton NRR D. Crutchfield NRR/DL/ADSA T. Speis NRR/DSI C. Miller NRR/DL/ADSA E. Rossi IE/DEPER/EAB B. Fisher IE/DEPER R. Baer IE/DEPER/EAB S. Long IE/DEPER/EAB J. Stolz NRR/DL/0RB4 M. Ley NRR/DL/LB3 D. Humenanski OCM/Com. Zech R. Singh IE/DEPER/EAB F. Schroeder NRR/ DST G. Lanik IE/DEPER/EAB J. P. Knight NRR/DE L. B. Marsh NRR/DSI/RSB F. Miraglia NRR/DL E. J. Weinkam NRR/DL/ADL G. Holahan NRR/DL M. Chiramal AEOD/ROAB R. Wessman NRR/DL H. Bailey IE/EAB J. Lyons NRR/PPAS W. Lanning AEOD
- 5. Black NRR/DL 4
H. Ornstein AEOD L. P. Crocker NRR/DHFS J. Hannon NRR/DL
OPERATING REACTORS EVENTS BRIEFING (NO, 85-20)
OCTOBER 21, 1985 PALO VERDE UNIT 1 TEAMFINDINGSONRECENTEUENTS EVENT FOLLOWUP RANCHO SEC0 NORTH ANNA UNIT 2 EMERGENCY DIESEL GENERATOR (EDG)
FAILURE MAINE YANKEE ROSEMONT TRANSMITTER IMPROPER INSTALLATION HATCH UNIT 1 CRACK IN THE DRYWELL INERTING AND PURGE VALVE MEXICAN EARTHOUAKE
SUMMARY
SUSOUEHANNA UNIT 1 RWCU ISOLATION ON HIGH FLOW ARKANSAS UNIT 1 FAILURE OF A SERVICE WATER PUMP DISCHARGE CHECK VALVE l
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PALO VERDE 1 TEAM FINDINGS ON RECENT EVENTS OCTOBER 21, 1985 (E, A. LICITRA, NRR)
EVENTS:
9/12/85 LOSS OF AUXILIARY SPRAY SYSTEM (N0 PORVs) 10/3/85 TOTAL LOSS OF 0FFSITE POWER (FROM 50% POWER)-
MULTIPLEXER 10/7/85 TOTAL LOSS OF 0FFSITE POWER (WITH REACTOR DOWN)-
MULTIPLEXER TEAM VISIT NRR, IE, AND AE0D PERSONNEL VISITED SITE 10/9-11/85 FOCUS ON PRE-AND POST-TRIP EVALUATIONS AND SYSTEMS DESIGN APS PROVIDED SUPPORT TO TEAM NEEDS TEAM EXIT MEETING
' DESIGN OF AUXILIARY SPRAY SYSTEM BEING HANDLED SEPARATELY MULTIPLEXER DESIGN CHANGE REQUIRED OF APS SEVERAL AREAS IDENTIFIED FOR IMPROVEMENT PRE-TEST EVALUATION DID NOT ALERT OPERATOR TO POTENTIAL SEQUENCE WHICH OCCURRED ON 9/12 EVENT POST-TRIP REVIEW 0F 9/12 EVENT DID NOT EVALUATE THE EFFECTIVENESS OF THE RESULTING NATURAL CIRCULATION C00LDOWN DOCUMENTED REVIEW 0F 10/3 EVENT DID NOT ESTABLISH APS HAD A CLEAR UNDERSTANDING OF THE COURSE OF EVENTS DURING 10/3 EVENT, OPERATORS DID NOT RESTART RCS PUMPS PROPERLY AND CAUSED A DIESEL TRIP BY SHEDDING LOADS T00 RAPIDLY TROUBLE SHOOTING OF MULTIPLEXER PROBLEM ON 10/7 WAS BEING PERFORMED SIMULTANE0USLY WITH MAINTENANCE WORK ON ONE OF THE BREAKERS 10/7 EVENT MAY HAVE BEEN AVOIDED BY LINING UP THE PLANT ELECTRICAL SYSTEM S0 THAT MULTIPLEXER WOULD NOT AGAIN CAUSE TOTAL LOSS OF 0FFSITE POWER TEAM RECOMMENTDATIONS TO APS PROCEED CAUTIOUSLY AND DELIBERATELY DURING POWER TEST PROGRAM FOCUS MANAGEMENT ATTENTION ON OVERVIEW 8 SAFETY SIGNIFICANCE OF EVENTS
RANCHO SECO-EVENT FOLLOWUP-(HENRY BAILEY, IE)
- 1. REACTOR TRIP AND EXCESSIVE C00LDOWN OCTOBER 2, 1985
- 2. AUXILIARY FEEDWATER PUMP BEARING FAILURE OCTOBER 7, 1985 a
EVENT NO 1 - EXCESSIVE C00LDOWN SAFETY SIGNIFICANCE APPARENT VIOLATION OF C00LDOWN TECH SPECS
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MULTIPLE EQUIPMENT FAILURES ADEQUACY OF MAINTENANCE SEQUENCE REACTOR AT 15% WITH TURBINE OVERSPEED TEST UNDERWAY TRIP 0F STEAM BYPASS VALVES ON LOW CONDENSER VACUUM FW HEATER RELIEF VALVES LIFT "A" MFW PUMP TRIPS.
BOTH AFWP START ON LOW MFW DISCHARGE PRESSURE REACTOR TRIPS ON HIGH PRESSURE (2300 PSIG)
"B" MFW PUMP TRIPS C00LDOWN TRANSIENT RESULTS IN RAPIDLY DROPPING PRESSURIZER LEVEL. "B" HPI PUMP STARTED THROUGH "A" INJECTION VALVE; "B",
"C", AND "D" INJECTION VALVES ALSO OPENED.
"A" HPI PUMP STARTED.
HPI FLOW INDICATION GOES TO ZERO IN "A" LINE.
PRESSURIZER LEVEL REACHES 35 INCHES.
RCS PRESSURE REACHES 1840 PSIG.
ALL HPI SECURED SLOW DEPRESSURIZATION STARTED TO GET WITHIN PTS LIMITS RCS OVERC00 LING IS STOPPED.
RCS C00LDOWN OF 100*-110*F.
TECH SPECS ALLOW 100*F IN A ONE HOUR PERIOD.
"B" MFW PUMP TRIP IS RESET AND PUMP STARTED.
AFW VALVES GO SHUT AFW PUMPS SECURED RCS DEPRESSURIZED TO 1400 PSIG.
3 HOUR SOAK BEGINS
EVENT NO, 2 - AFWP FAILURE SAFETY SIGNIFICANCE PARTIAL LOSS OF DECAY HEAT REMOVAL CAPABILITY SEQUENCE REACTOR IN HOT SHUTDOWN WITH MFPs PROVIDING FEEDWATER.
STEAM FOR MFPs SUPPLIED BY AUXILIARY BOILERS.
BOTH AUXILIARY BOILERS TRIPPED MANUALLY STARTED MOTOR DRIVEN AFWP ("A")
"A" MFP RESTORED TO SERVICE IN 2 HOURS SM0KE OBSERVED FROM AFWP "A" BEARING HOUSING JUST BEFORE PUMP WAS SECURED CAUSE:
AFW PUMPS RARELY RUN FOR MORE THAN A SHORT PERIOD OF TIME.
SLINGER RING MISPOSITIONED IN 1978, CHANGE TO OIL FEEDER LEVEL MADE IN 1982 FOLLOWUP OCTOBER 4, 1985 - REGION V CONFIRMATORY ACTION LETTER OCTOBER 10, 1985 - HQ TEAM TO SITE OCTOBER 16, 17, 1985 - HQ TEAM TO SITE LICENSEE DEVELOPED " PROJECT RESTART" LIST WHICH INCLUDED REPAIR OF AFW PUMP BEARINGS, ENDURANCE RUN AND ROOT CAUSE ANALYSIS OF BOTH EVENTS MAIN NRC CONCERNS ARE:
1 CAUSE OF MFP TRIPS 2, HPI FLOW ANOMALY
- 3. DIRECT CAUSE OF OVERC00 LING EVENT 4
POSITION WHETHER C00LDOWN TECH SPEC WAS VIOLATED 5 AFW INITIATION AND MFW PUMP RESET 6, PREVENTATIVE MAINTENANCE PROGRAM
- 7. VEND 0R INTERFACE
- 8. USE OF M0ISTURE SEPARATER REHEATER VALVE C0 VERS
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NORTH ANNA EMERGENCY DIESEL GENERATOR (EDG) FAILURE OCTOBER 8, 1985 (L. B. ENGLE, NRR)
PROBLEM:
2H EDG FAILED ON START DUE TO CRANK CASE: PRESSURE TRIP.
UNIT 2 REQUIRED TO SHUTDOWN IN ACCORDANCE WITH 72 HR ACTION STATEMENT.
SIGNIFICANCE: DEGRADATION IN EMERGENCY POWER SUPPLY CIRCUMSfANCES:
2H EDG HAD BEEN REMOVED FROM SERVICE FOR ROUTINE TESTING PRIOR TO FAILURE
.2H FAILED ON RESTART DUE TO HIGH CRANK CASE PRESSURE SUBSEQUENT INVESTIGATION REVEALED FAILED UPPER PISTON APPARENT TIE-IN WITH DEFORMATION / EXTRUSION OF WRIST PIN BUSHINGS AND RESULTANT PISTON-TO-CYLINDER CONTACT AND SCORING FOLLOWUP:
EDG VENDOR AND LICENSEE'S INDEPENDENT CONSULTANT ASSISTED LICENSEE IN ROOT CAUSE DETERMINATION HISTORY OF 70 PREVIOUS FAST STARTS WITH RAPID LOADING BELIEVED TO BE PRIME SUSPECT BY LICENSEE
- 11 8 #12 CYLINDERS AND LINERS AND ALL UPPER AND LOWER PISTONS REPLACED 24 HOUR POST REPAIR TEST SUCCESSFUL a UNIT 2 RESTARTED ON 10/13/85 ROOT CAUSES CONTINUE TO BE INVESTIGATED LICENSEE MET WITH STAFF ON 10/18/85 TO INFORM STAFF ON LATEST STATUS LICENSEE PLANS MAJOR OVERHAULS OF UNIT 1 EDGs DURING NOVEMBER 1985 0UTAGE AND UNIT 2 EDGs IN APRIL 1986 0UTAGE
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MAINE YANKEE - ROSEMONT TRANSMITTER IMPROPER INSTALLATION OCTOBER 10, 1985 (P. M. SEARS, NRR)
PLANT DOWN FOR REFUELING i
PROBLEM:
MAINE YANKEE DISCOVERED THAT PRESSURIZER PRESSURE (4), PRESSURIZER LEVEL (2), AND STEAM GENERATOR LEVEL (12) i TRANSMITTERS HAD NOT BEEN INSTALLED IN COMPLETE l
AGREEMENT WITH THE E0 TEST CONFIGURATION, THE INSTALLATION WAS COMPLETED IN 1982 AND THE TESTS j
WERE COMPLETED LATER SAFETY SIGNIFICANCE:
A STEAM LINE BREAK COULD HAVE COMPROMISED THE AB0VE SYSTEMS, l
DISCUSSION:
UPON CHECKING THE EQ TEST REPORT, MAINE YANKEE FOUND THE j
FOLLOWING:
i SOME CONAX SEAL ASSEMBLIES (WHERE LEADS ENTER) WERE j
NOT TOROUED UP AS TIGHTLY AS IN THE TEST CONFIGURATION, 1
SOME ROSEMONT/CONAX SEAL CONNECTIONS NOT TORQUED AS TIGHTLY AS IN THE TEST CONFIGURATION,
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SOME VENTING ENCLOSURES ON LIMIT SWITCHES NOT SCREWED DOWN AS TIGHTLY AS IN THE TEST. CONFIGURATION, NO DRAIN H0LES IN THE BOTTOM 0F JUNCTION BOXES, ROSEMONT COVERS NOT TORQUED DOWN AS TIGHTLY AS IN THE TEST CONFIGURATION, THE COVERS ON ALL CONAX RTDs AND TCs (WHICH WERE ON THE l
EQUIPMENT QUALIFICATION LIST) WERE NOT TIGHTENED AS l
TIGHTLY AS IN THE, TEST CONFIGURATION, j
FOLLOWUP:
j MAINE YANKEE IS CHECKING FOR LI,KE PROBLEMS WITH OTHER j
QUALIFIED EQUIPMENT, THE VENDOR INSFECTION BRANCH IS LOOKING INTO THIS PROBLEM FOR GENERIC ASPECTS AS WELL i
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MEXICAN EARTHOUAKE
SUMMARY
SEPTEMBER 19, 1985 (R.L. ROTHMAN, NRR) o SITUATION:
MAGNITUDE 8.1 EARTHQUAKE IN SUBDUCTION ZONE ON WEST C0AST OF MEXICO o
SIGNIFICANCE:
POTENTIAL FOR CONCERN AT PLANTS IN WESTERN WASHINGTON AND OREGON:
AMPLIFICATION AT S0ll SITES; FOUNDATION AND STRUCTURE LESSONS o
CIRCUMSTANCES:
EARTHOUAKE OCCURRED IN A SUBDUCTION ZONE WHOSE CLOSEST AN0 LOG IN THE CONTERMIN0US 48 STATES IS WESTERN WASHINGTON AND OREGON LOW EPICENTRAL GROUND MOTIONS (0.15G), LITTLE OR NO DAMAGE TO INDUSTRIAL FACILITIES 4
HIGH, LONG DURATION GROUND MOTION IN MEXIC0 CITY WHICH WAS 400 KM AWAY SEVERE DAMAGE TO SOME TYPES OF ENGINEERED STRUCTURES OVER RESTRICTED AREAS, POSSIBLY DUE TO LOCAL S0ll CONDITIONS SITE PROBLEM PREVIOUSLY IDENTIFIED, INTENSITY OF GROUND MOTION WAS A SURPRISE 4
MOST DAMAGE MAY BE DUE TO RESONANCE EFFECT OF THE SITE AND STRUCTURES l
PREVIOUS LACK 0F LARGE EARTHOUAKES IN EPICENTRAL AREA LED TO DIFFERING ASSESSMENTS OF HAZARD.
o FOLLOW-UP: STAFF INVOLVEMENT IN EVALUATION OF EVENT TO l
IDENTIFY LESSONS WITH RESPECT TO NUCLEAR POWER PLANT BEHAVIOR DURING EARTHOUAKES l
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r SUS 00EHANNA-1, RWCU ISOLAT!0N ON HIGH FLOW OCTOBER 11, 1985 (M. CAMPAGNONE, NRR)
PROBLEM:
DISCHARGE OF WATER AND SPENT RESINS ONTO:RX BLDG FLOOR FROM RWCU SYSTEM SIGNIFICANCE:
P0TENTIAL FOR INTERFACING SYSTEMS LOCA AND CONTAMINATING PLANT PERSONNEL CIRCUMSTANCES:
DAY BEFORE INCIDENT OPERATOR TRIED TO PUT THE "A" DEMIN, INT 0 SERVICE; EFFORT TERMINATED DUE TO BINDING OF FV-14566A IN FULLY OPEN POSITION RWCU DEMIN, "A" WAS BEING LINED UP S0 MAINTENANCE PERSONNEL COULD FIX FV-14566A FILTER "A" DE-ISOLATED; HIGH PRESSURE COOLANT LEAKED INTO 4
LOW PRESSURE BACKWASH AND PREC0AT PIPING AT LEAST ONE, RELIEF VALVE (LOW PRESSURE SIDE) LIFTED WATER (750 GAL.) AND RESIN (20 GAL.) DISCHARGED INTO RX BLDG, FLOOR DRAINS AND SPILLED ONTO FLOOR ONE OPERATOR CONTAMINATED (SHOE)
AIRBORNE RADIATION LEVELS REACHED 3/4 MPC NO 0FFSITE RELEASE l
FOLLOW-UP:
LICENSEE TO MODIFY PROCEDURES LICENSEE TO MODIFY TIMER SEQUENCE FOR CHANGING VLV POSITIONS 4
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6 AND FAILURE OF A SERVICE WATER PUMP DISCHARGE CHECK VALVE SEPTEMBER 17, 1985 (GUY VISSING, NRR)
PROBLEM:
ANCHOR DARLING MFG, C0, 18" CHECK VALVE INTERNALS CORRODED SUCH THAT THE DISK BECAME MISPLACED SIGNIFICANCE:
DURING AN EVENT AND WITH SUCH A VALVE FAILURE, BACK FLOW THROUGH THE VALVE WOULD RENDER A SW LOOP IN0 PERATIVE IF THE VALVE WERE OF THE PUMP WHICH WAS NOT OPERATING.
THIS WOULD BE AN UNLIKELY EVENT, CIRCUMSTANCES:
THE "A" SW PUMP DISCHARGE 18" CHECK VALVE FAILED, FAILURE 1
WAS DISCOVERED DURING A MONTHLY SW WATER SURVEILLANCE THE VALVE IS A WELDED END CARBON STEEL CHECK VALVE WITH STELLITED SEAT & DISK.- MODEL N0, 18-S40SC "A" VALVE FAILED COMPLETELY - THE ARM ON THE DISK CORRODED AT THE PIN - THE ARM BROKE AT THE PIN i
"B" VALVE SHOWED SIGNIFICANT CORROSION AT THE PIN WITH A NUT MISSING BUT HAD NOT FAILED "C" VALVE SHOWED CORROSION BUT NOTHING MISSING AND WAS OPERABLE, l
VALVES HAVE BEEN IN SERVICE FOR 14 YEARS WHICH THE MFG, INDICATES IS GOOD EXPERIENCE THE LICENSEE AND MFG INDICATE THAT THE CAUSE OF CORROSION IS GALVANIC CORROSION DUL' TO DISSIMILAR MATERIALS IN THE VALVE - CARBON STEEL BODY AND SEAT, STAINLESS STEEL PIN, STELLITED BUSHINGS - SALINE WATER OF LAKE WOULD ACCELERATE SUCH CORROSION LICENSEE BELIEVES THIS TO BE UNIQUE TO THESE VALVES, i
FOLLOW-UP LICENSEE HAS LOOKED FOR BUT HAS FOUND NO OTHER SIMILAR CIRCUMSTANCES IN THE SW SYSTEM
. LICENSEE PROPOSING IMPROVED SURVEILLANCE TO DET$CT-BACK LEAKAGE ON SITE ASSISTANCE BY MANUFACTURER'S REPRESENTATIVE 1
ALL THREE VALVES HAVE BEEN REPLACED WITH SIMILAR VALVES VALVES HAVE BEEN RETURNED TO MFG FOR REFURBISHMENT PROCEDURES ARE PROPOSED WHICH WOULD CHECK VALVES FOR BACKFLOW LEAKAGE DURING MONTHLY SWS SURVEILLANCE.
LICENSEE PLANS TO OPEN UP VALVES AT NEXT REFUELING TO CONFIRM THAT GALVANIC CORROSION IS SLOW AND OVER A LONG PERIOD OF TIME.
.THERE ARE NO PLANS TO CHANGE THE ISI ON THESE VALVES RESIDENT INSPECTOR HAS REQUESTED ADVICE FROM NRR CONCERNING OPERABILITY SURVEILLANCE PROGRAM - LICENSEE CHECKS FOR FLOW l
- ONLY, RI WILL FOLLOW UP, NRR PROVIDED STAFF POSITION ON SURVEILLANCE - LICENSEE APPEARS TO l
HAVE AN ACCEPTABLE SURVEILLANCE PROGRAM, 4
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BREAKDOWN OF REPORTED CAUSES:
AUTOMATIC EQUIPMENT FAILURES 33%
PERSONNEL ACTIVITIES 56%
MANUAL 11%
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- BASED ON 10CFR 50.72 REPORTS FOR PLANTS WITH LICENSES FOR l
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Page No.
10/24/85 0FERAflh5 REA 10RS EVENTS MEEilh5 FOLLCt / ITEPS AS OF MEtilh5 85-20 CN OCTC ER 21, 1985 (IN ASCEh:!h6 MEEilh5 EATE, NSSS VECOR, FA:lLITV OUER)
MEET!hi FA:!LITY RESP 0hS!!LE TASr HStRIFi!CN SCHED1E CLOSEDIATE C vtsis t.?!ERI hS55 VEh::R/
t!V1510N/
COMPLET. IV DOCURENT, EETING EVENT H S FIP.
IN !v! DUAL DATE($)
MEETINS,ETC.
CATE RANCHO SECO 1 1CSl!RCSA,F.
SU9ARl!E lit LIC. RESFDNSES 70 10/30/85 0FEh
//
SIAFF REVIEt Or 04/10/14 lu / MA!h E!h
/
GUESil045SutSEQUENTTORAN:WD 09/30/85 lit Cu%ERS 6R005 NYDROSEN SECO LOS$ OF kN! EVENT AND 08/30/85
$UIMlfTAL CF EIFLOS10h -
PRESEhi AT FCLL0s-UP DR EVENTS 1/11/25 15 IN PART!AL LCSS OF BRIEFING PROGRESS (TNil Wh! 3/19/84 REA:TIVATED-CRYS.RIV,3)
CRYSTAL RIVER 3 1CSI/R:!A,F.
[0hSI ER NEtt FOR A:llTIONAL 12/30/25 CPEN
//
ICSBCCNS!LER!hi 01/03/85 la / TEP.P. LOSS
/
REGUIREMENTS On ALARMS /
09/30/65 0:0 NEE I LOSS OF 0F Nh! 12/28/84 ANhuN:!ATOR$
07/30/65 AhNUh:!A.
14/25/E5)InAhAL.
OF REGUIREME475.
MILLSTONE 2 C8AS/MURFHY,E.
REVIEW $606 LETTER 04 EIDY 11/30/85 0 FEN
//
04L CONTRACTED TO
' 05/07/85 CE / itDY LE /C0hKA?. H.
CU3REhiTESTINSISSUE,INVIEW 10/01/95 EVALUATE EFFECT OF CURREWiTESTCF 0F MILLSTCN! 2 FINL!h65.
02/07/85 C0FFliDNELLY STEAMBEh.
CUFRENTTElilN TL1ES,4/10/85 MLAYS IN ORN; TES'!hl CATAREA2 EL /JAll205.,K.
FOLL0s UF BRIEFINS ArTER EVAL.
!!/04/65 0 FIN
//
FOLL0sUPIRIEFINS 95/07/95 W / IDTH RHR I
Cr CVERFAISS. EFFECTS ON 09/30/85 SCHECAEC ON TRAlh5 VARIOUS iVSTEMS AC CORRECTIVE 08!07/85 10/07/t5 DVERPRES$3RIZED ACTIONS.
4/19/B5 8510 DAVIS M SSE 1 IS! /FAH. C.
RE-EIARINE STAFF REV!EW OF 12/30/95 OPEh
//
AWAlf!h5 STAFF Ce/12/85 is / LCSS OF ALL CL /IEASA!!D,A. ACCEPTA!! LIT 1/ 31VERSITY OF 08/30/25 RESTAlf SER -
MAIN AC AUI.
8 AVIS RESSE AFW SYSTEM.
06/19/05
[IFICTEt 12/85 FEttuATER6/9/85 85 10 BIV!S SE 5E I CL /M AGAIIC, A.
PROVIDE H. M NTON WITH 12/30/15 04/12/85 is / LOSS CF ALL
/
IICOMPARISON H IWIEN BAvll 08/30/85 CLOSED 10/01/B5 MA!N AC AUI.
BESSE I AC TMI-! 0F iM1 ACT!DN 04/19/15 - UFIATED FEED #ATER 6/9/B5 PLANIMPLEMENTAi!DuSTATUS RESPONSE TO.
MARKEY TMI !
IUESTIONS FOR 31 STATUS OF STARTUP Fu PUMP EAR!uS UPERADE.
35-11 CYSTERCREEEI HFS/Claff0N3.
DETERMINE EFFICACY OF E'5/
10/30/15 OPEN
//
07/01/95 BE /
/
OPERATOR Atil0N A C E!CESSIVE 09/15/05 UNCONTROLLEI RESFCNSE TIME.
06/30/15 LEAlAGE CF DEAttE CCOLANT i
l OUIS!tt
(
CONTAIN*ENT j
6112/95
F4;e be.
2 10/24/65 0'E8AT!h5 REA:TERS EVEhTS MElithS FOLLts;P !!ERS AS Or MEEithi 65 20 DN CCTCEER 21,19E5
(!k A5;Eh;Iki MEEllh5 CATE, h555 VEhM R, FA:ltlly OR ER)
RIET!n3 FA:lLITT RE58:4511LE TASA EESCRIF110N SCHEDULE CLCSEELATE C0"Ehis N?!ERI h555VEhME/
!!V!S!04/
COMPLET. If D C ?Eni, PiEilbi EVEhi IES: elf.
Ih:IVIOUR tate ($1 RIEllki,ETC, CATE E5-12 SEAEC:t 25! / mat.SH AhtflE StrETy in;LICAfith! OF 10/30/25 08Eh
//
07/23/E5 W / tulit MAlh
/
V4VEFLtuEEFlt!Eh:Y 09/30/85 STEA9 SAFETV
//
V4VE FLCe MFl !Eh*V 12!!4 E5-13 FORElin II /R 551. E.
C0h!!tER !!SUAh:E OF !E 10/30/25 05En
//
!E 4:TICE lh 08/13/I5 NA / PJ.TIFLE
/
lbFORMAi!04 h37!CE.
09/30/85 C04:e8FEk:!
FEtth!TER 09/03/E5 FalLUsiS B5-13 F0thi M A*H IE /LDhi. S.
CFArf IE b;TICE CN PT LEA:H 11/27/85 0FEh
//
DEATT IE h3il:E th OS!!3/E5 W / SarEit CH)/tA%'!
M.
EVDT.Cth!!!ER TEMP.!hSTR.FER 10/18/21 tch:GFEn:E lb. LECT!th RES.In5FECTOR RE6ARDIh5 09113/25 Mlhl FLte FEtlK CC9Pi!AN:E WITH AFF.K IE5154 IEFICIEh:1 85-13 TUVEY F Ihi3 EL In:IchALI,I. ha d LitEh!EE IN:0RP0 FATE USE 10/13/85 CSD
//
02/13/E5 t /F;51-TR15
/
OF P37tf L;1VEN Ash PUM.83 Ik
//
LOSS Of AFu th EPiRSEN:V FACCEEURES
//
7/21/E5 85-13 TUVEY P010 3 D51 /FA5R, C.
FEVID A:EEUA:Y OF E0ERN:R 01/05/66 05D
//
06tl3!E: b /PCST-TElf
/
EES!6h 04 TURl!NE ORIVEN AFs 10/l:/85 LESS 0: Arg pegps
//
95-1A CAT &hla 1
!!! i '.lulVASAN P REVIEu SEFARATION OF UNIT I AC 10/15/E5 CSD
//
t 08/26/95 W / BLA:r0UT
/
UNIT 2 AN: MEET WITH DUKE PAlth 09/30/85 5164E AC TO LICEN!!h6 0F UNIT 2
//
INTERA:1104 EETutEhUhl151 AG 2 85-14 SEGUDYA4 tl /STAF. t INITIATE STAFF REVIEb 0F TVA 12/30/85 DPEu
//
06/26/15 g / UhlTS 1 AG
/
SUBMITIES 09/10/85 2 VOLUNTARY
//
SHUIECWW lY TVA BECAUSE OF EGulPMENT G;RIFitAT104 (EGI INAMGUA:!ES B5-15 PEACH $0T105 3 M /LIAN 3 D NTERMINE WHAT FUTURE A: TION
!!/30/e5 OPEN
//
09/09/05
/ NEW PIPE DE /HAZELTON N NEEEEE ON 6DERIC BA;15 10/15/25 CRACK
//
l IN:ItAi!0NS
?
Fa;r No.
3 10/24/85 OPERATIN5 REA:TCR$ EVENTS MEET]h5 FOLLCOP ITEMS AS Or MEETING B5-20 DN OCTCBER 21, 1925 IIN ASCEC Ih6 MEETING CATE, NSSS VE C OR FA !LITY ORDER)
MEET!Ni FA:!LITY REEFON3!RE TASL DES: RIFT 10N SCHEDULE CLOSED DATE C0"EnTS k?.iER!
Ni!S VEk:3/
t!VISICN/
CD*LET. If D0;L"Ehi, RIETIhi EVEh1 IES:RIF.
Ih;IVIEyAL DATEts)
NEETIN!,ETC.
IATE 85-17 BREstEn 3 EL /ICLINSKI J DETER'!!h! WHY SDV 15 CT VENTED !!/0B/95 0 FEN
/ /
09/2:II5
/ S:Ru
/
TO SASECUS RAD WASTE SYSTEM
/ /
SDLECID PR3LEM
//
I CU:EI R*S LEAAASE B5-17 PALD VER:E 1 DL /th!6HTON E DETERf!INI WHETHER PROKER IS
!!/06/23 OPEh I /
09/23/25
/ REA:TCR
/
GENERIC TO WATERF06 AC 584
/ /
TRIP, SAFETY Cn:rRE
/ /.
- CEtTION. LOSS j
OF PRESS'JIZER Ay!!LIARY EFRA SYSTIR 85-19 RJLTI IST /RGIn A EST u!LL FA: TOR EIPERIEu E INTO 10/30/85 OPEN
//
09/30/85
/ N3RICAnE
/
CC'alIS$10N BRIEFING ON STATION
/ /
SLORIARESF;NSE hA:t0UT
//
15-19 iSUNieltr 2 EL /ESOTEh"J!$ M FOLL0e 5 18!EFINE WHEN CAUSE 12/15/85 0*EN
//
10/C7/85
/ M51Vs
/
AC IMPLICATIONS OF EVENT ARE
/ /
i FAILtRE TO CLCSE FULLYL%;EP.iT00D
//
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