ML20237G389

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Summary of Operating Reactors Events Meeting 87-25 on 870804 Re Events That Occurred Since 870728 Meeting.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20237G389
Person / Time
Site: Mcguire, Palo Verde, Catawba, Prairie Island, McGuire, 05000000
Issue date: 08/27/1987
From: Lanning W
Office of Nuclear Reactor Regulation
To: Rossi C
Office of Nuclear Reactor Regulation
References
OREM-87-025, OREM-87-25, NUDOCS 8709020228
Download: ML20237G389 (18)
v • d • e


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, hI M MEff0RANCUM FOR: Charles E. Rossi, Director Division of Operational Events Assessment FR0f t: Wayne Lanning, Chief

' Events Assessment Branch Division of Operational Events Assessment l,

SUBJECT:

THE OPERATIllG REACTORS EVENTS MEETING l AUGUST 4, 1987 - HEETING 87-25  !

On August 4,1987 an Operating Reactors Events meeting (87-25) was held to _

brief senior managers from NRR, RES, AE0D and Regional Offices on events which occurred since-our-last meeting on July PA, 1987. The list of attendees is included as Enclosure 1.

The events discussed and the significant elements of these events are presented in Enclosure 2. Enclosure 3 provides a summary of reactor scrams.. There were

, no "significant events" since our July 28, 1987 0 briefing.

8 h g, Chie Events Assessment r ch Division of Operat onal Events Assessment

Enclosures:

As stated

-cc w/ Encl.:

See Next Page  ;

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.. NEMORANDUM FOR: Charles E; Rossi,. Director Division of Operatior.al- Events Assessment FRCM: llayne Lanning, Chief Events Assessment Branch Division of Operational Events Assessment'

SUBJECT:

THE OPERA 11NG REACT 0P.S EVENTS NLETING AUGUST 4,,1987 - MEETING 87-25 On August 4, 19871an Operating Reactors Events meeting (87-25) was held to brief senior managers from NRR, RES, AE0D and Regional Offices on events which occurred since our'last meeting on July 28,~19871 The list of attendees is included as Enclosure.l.

The events discussed and the.significant' elements of'these events.are presented in Enclosure P. Enclosure 3 provides a summary of reactor scrams. There were no "significant events" since our July 28, 1987'OR briefing.

Wayne Lanning, Chief Events Assessment Branch Division of Operational Events Assessment

Enclosures:

As stated cc w/ Encl.:

See Next Page DISTRIBUTION:

f,e;)entra1xF11e p' NRC PDR EAB Rdg Oudinot Rdg.w/o Enclosure EAB Members l

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- EAB:NRR AF EAB:SL NFields RLobel ($ening Vg i.

8////87 84UL/87 BAj(g87 A -*

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  • Charles E. Rossi cc: T. Murley E. Licitra J. Sniezek G. Knighton R. Starostecki L. Reiter J. Taylor G. Bagchi E. Jordon E. Sylvester E. Beckjord E. Adensam k!. Russell, Reg. I K. Stefano J. helson Grace, Peg. II~ M. Virgilio B. Davis, Reg. III R. D. Martin, Reg. IV J. B. Martin, Reg. V W. Kane, Reg. I L. Reyes, Reg. II C. Norelics. heg. III E. Jchnson, Reg. IV D. Kirsch, Reg V S. Varga D. Crutchfield B. Boger G. !.cinas

. G. Holahan F. Schroeder-L. Shao J. Partlow

8. Grimes F. Congel H. Miller E. Weiss S. Black T. Martin, ED0 F. Miraglia E. Merschoff R. Hernan H. Bailey

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.- 'ENCLOSilRE 1 LIST OF ATTENDEES CPERATING REACTORS EVEf!TS BRIEFING, J87-25)

/UGUST 4, 1987 i

NAME , ') ORGANIZATION.

C.H. Berlinger- 00EA/0GCB j P. Daranowsky DOEA/EAB P. Prescott  !!RR/VIB .

R. Lobel. NRR/EAB J. Roe NRR/DLP0

F. J. Miraglia NRR/ ADP G. Lainas NRR/DRP II A. Rubin RES/DRPS E. flerschoff NRR/RVIB M. Pavis NRR/PD5-D. Hood FRR/PD P-3 K. Naidu.. NRR/DP,Ia/VIB R. F. Scholl Jr. NRR/EAD-

.1 R. Starostecki NRR/ADP B. Grimes NRR/DRIS D. Dilanni. NRR/PD III 3 E. Butcher DOEA/0TSB it. Johnson CEDO-G. Klingler Ptte.5/!LRB L. Shao NRR/ DEST J. Sniezek- NRR-T. Murley NRR

Enclosure 2 1 i-OPEPATING. REACTORS EVENTS BRl_EFING 87-25 IUESDAYAlGGT 4-1987, 11 A,M, i

TE AGENDA INFORMATION MAY ALSO BE OBTAINED BY DIALING D(TENSION B' 174, PALO VEPK 3 EEPGB CY DIESEL GUERATOR PROBLEMS MCGUIRE 182/ CATAWBA 1 RX TRIP BREAKER FAILURE (2rtn EPEAKER)

PRAIRIE ISLAND 182 PARTIAL LOSS OF 0FFSITE POWER j

...________O

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PALO VERDE IINIT 3 E"ERGEPCY U:tstl 6telue PROBLEMS DELE.5RER 25, 1985 - JULY 12, 198/

PROBLEM PEPEATED COMPONENT FAllVRES AND SHUTDOWNS OF THE EMERGENCY DIESEL GENEPATOR (EDG) UN!T III 2 SN7187 AT THE ARIZONA NUCLEAR oCWER PP0 JECT.

SIGNIFICANCE.

EDG OPERABILITY iS CRITICAL PATH ITEM FOR PODE 4.

DISCUSSION DECEMBER 23, 1986 - INCIDENT UNMBER 1. NUMBEP 9 POWER (MASTEP)

R0D FROKE, APPROXIMWiELY ZUU HOUPS 10TAL RUNNING TIME.

MARCH 3,1987 - NRC VENDOR INSPECTION AT COOPER 15!DUSTRIES THE PEBUILDING OF THE EDG FOLLOWING THE DECEMBER 23, 1986 R0D

- FAILURE, COMPLETED MAY 31, 1987 AND THE ENGINE RESTARTED JUNE 2, 1987. RAN 15 MINUTES OKAY.

ON JUNE 8, 1987, AN ATTEMPTED RESTART VAS NOT COMPLETED DUE TO A HEAD CRACK WHICH ALLOWED COOLING WALER TO ENTER' CYLINDER 8 RIGHT. BETWEEN JUNE 12 AND JUNE 23, THE ENGINE WAS SHUT DOWN THREE TIMES BY A BEARING OVERTEMPERATUFE DEVICE ON THE NUMBER 2 MAIN BEARING.

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JUNE 12, 1987 - NUMBER 2 AFT MAIN JOURNAL BEARING EUTECTIC TRIPPED TWO MINUTES AFTER ENGINE BEING LOADED TO 100%,

JUNE 17, 1987 - NUMBER 2 AFT MAIN JOURNAL BEARING EUTECTIC- -

TRIPPED ONE MINUTE AND SEVEN SECONDS AFTER ENGINE ACHIEVED 100% LOAD, JUNE 23, 1987 - NUMBER 2 FORWARD MAIN JOURNAL BEARING EUTECTIC TRIPPED WHEN CHANGING ENGINE LOAD TO 50% HAVING RUN APPROXIMATELY TEN MINUTES AT 25%..

JUNE 24, 1987 - NRC VENDOR INSPECTOR MET WITH LICENSEE, COOPER REPRESENTATIVE AND CLEVITE BEARING REPRESENTATIVE.

FOLLOWING THE REP 0LISHING 0F THE NUMBER 2 MAIN JOURNAL AND APPR0XIMATELY 50 HOURS OF SUCCESSFUL ENGINE RUNNING, THE ENGINE WAS SHUT DOWN BY THE TURBOCHARGER BEARING WEAR DETECTOR, DURING THE NIGHT OF JUNE 30, THE ENGINE WAS SHUT DOWN BY THE

-CRANKCASE OVERPRESSURE SAFETY DEVICE, A SUBSEQUENT INSPECTION OF THE INSIDE OF THE ENGINE REVEALED A HEAVY SCUFF MARK ON THE THRUST (LEFT) SIDE OF THE NUMBER 9 LEFT CYLINDER,

.___i_______m .__.__._i_._.__.__

JilLY 8,1987 - APPROXIMATELY 110 HOURS OF RUNNINr: TIME AT 100T I OR GREATER ENGINE LOAD ACCRUED, JULY 10 - PVNGS AND NRR MEETING IN EETHESDA TO DISCUSS NUMBEP 9 AND NUMBER 2 MAIN CRANK SHAFT BEARING INSPECTION,

  • JULY 12 - INSPECTION OF Nt;MBER 9 CYLINDER LINER NUMBER 9 AND NU,PER

" 2 MAIN CRANK SHAFT BEARINGS, j JULY ?3, 1987 . CONFERENCE CALL WITH RV TO DISCUSS PALO VERDE PROBLEMS AND FU JJRE VENDOR / PLANT INSPECTIONS, FOLLOW llP VENDOR BRANCH WILL INSPECT COOPER IN SEPTEMBER

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I' MCGUIRE ?-RTR BREAKER FAILUPE-UPDATE

  • FAILEP BPEAKER HAS. BEEN SHIPPED' T0' WESTINGHOUSE FOR FL'PTHER TESTING, FPI' REPRESENTATIVE AND RVIB WILL WITNESS TESTING.

WESTINGHOUSE CLAIMS THAT THERE IS NO DESIGN PROBLEM, FRI's REPORT TO NRC TO INCLUDE THE FOLLOWING:

QUANTITATIVE /0UAllTATIVE ACCEPTANCE / REJECTION CRITERIA T0 INSPECT THE 6 WELDS,

- DETERMINE ADEQUACY'0F THE WELD ON Tile POLE SHAFT, EVALUATE WELDS ON THE POLE SHAFT OF THE CATAWBA RTB AND DETERMINE TIME TO FAILURE, INFORMATION NOTICE 87-35 ISSUED JULY 30, 1987 ADDITIONAL RTB PROBLEMS-CATAWBA 1 - CRACKS IN WELDS ON 7/24/87 MCGU1RE FAILURE OF UVTA TRIP MARGIN TEST 0N 7/27/87 1

i CONTACT: RUDY KARSCH, NRR l l

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CATAWPA 1 ON 7/24/87 VISUAL INSPECTION OF THE 6 WELDS A 4

LEVERS T0 THE CENTER SHAFT INDICATED A SMALL " CRATER" CPACK, LONG LACK OF FUSION IN THE WELD THAT ATTACPES T

'TO THE POLE SHAFT, AND PUBBING 0F ONE SIDE OF.THE-CLOSING CAK ITS ADJACENT SUPPORTING FRAME MEMBER.

7/30/87 AIT VISITED CATAWBA, INSPECTED WELDS, CONCURRED WITH LICENSEE OBSERVATIONS.

LICENSEE WILL DISASSEMBLE BREAKER AND PERMIT N SHAFT FOR ACRS BRIEFING.

SUBSEQUENTLY, POLE-SHAFT WILL BE SENT TO FRANKLIN RESEARCH FO EVALUATION OF THE. WELDS.

FRI WILL BE REQUESTED TO DEVELOP QUANTITATIVE AND Q ACCEPTANCE / REJECTION CRITERIA TO INSPECT WELDS O AT 0THER PLANTS.

CONTACT: RUDY KARSCH, NRR l

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_______....._.___._.__U

,, 'MCGillRE 1 ON 7/27/87 WHILE PERFORMING THE TRIP MARGIN TEST, THE CLEARANCE DETVEEN UVTA AND THE TR1P DAP VAS INADECUATE.

WITH INSERTION'0F A THICKNESS GAUGE (0.070"), THE BREAKER'DID NOT TRIP.-

AIT ARRIVED AT SITE AND.0BSERVED REPETITION OF THE TESTS ON 7/28/87 AND CONCURRED WITH THE LICENSEE OBSERVATIONS,

'*' UVTA WAS REMOVED, A SPARE UVTA WAS INSTALLED, RETESTED,:AND

~

DETERMINED ACCEPTABLE.

AIT REVIEWED MAINTENANCE HISTORY AND DETERMINED THAT THERE WERE NO PREVIOUS PROBLEMS,_ THE FAILED UVTA WAS ONE OF THE FIRST-BATCH OF UVTAs WHICH WERE MANUFACTURED SUBSEQUENT TO THE SALEM ATWS, CONTACT:- RUDY KARSCH, NRR i

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PPAlRIE-lSLAFD 1 8 2 PARTTAI G5TW 0FF5TTPOWER PROBLEM

  • PARTIAL LOSS OF 0FFSITE POWER CAUSE
  • LIGHTNING STPIKES AND POSSIBLE TORNADOES Sl'NIFICANCE G
  • POTENTIAL FOR COMPLETE LOSS OF 0FFSITE POWER WITH ONE OF TWO DIESEL GENERATORS 0VT OF SERVICE DISCUSSION
  • ON 7/27/87, BOTH UNITS WERE AT 100% POWER

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  • 2 0F 5 0FFSITE LINES AND THE 345 KV/161.KV TRANSFORMER WHICH SUPPLIES-

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POWER TO BOTH VITAL BUSES FOR UNIT 1 WERE LOST

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  • THE VITAL BUSES AUTOMATICALLY TRANSFERRED TO OTHER SOURCES OF POWER
  • DIESEL GENERATOR 1 AUT0 STARTED

' FANS, AND OTHER EQUIPMENT TRIPPED l

  • LICENSEE DECLARED AN UNUSUAL EVENT 9 MINUTES AFTER A TORNADO WAS SIGHTED WITHIN 2 MILES OF THE PLANT AND 4 MINUTES AFTER PARTIAL LOSS OF POWER
  • D1ESEL GENERATOR 2 HAD BEEN TAKEN OUT OF SERVICE EARLIER IN THE DAY, BUT l C0llLD HAVE PERFORMED ITS FUNCTION L
  • EACH DIESEL GENERATOR CAN SUPPLY ONE UNIT DURING A LOCA AND THE OTHER  ;

DURING HOT SHUTDOWN

  • AFTER 2-1/2 HOURS, THE PLANT HAD RETURNED TO NORMAL g
  • BOTH UNITS OPERATED AT 100% THROUGH0llT THE EVENT FOLLOWUP 1
  • LICENSEE WILL-INSTALL 2 ADDITIONAL DIESEL GENERATORS IN 1990 OR 1991 CONTACT: R0GER WOODRUFF w-__.__-.__.____-_-_._-.-.-.___.-- _ . _ - . _ _ . ,

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SUMMARY

01/01/87 10 06/30/67 PLANT.~ NSSS AUTD AUTO MANUAL MANUAL SCRAMS TOTAL FLANT. CR. HRS SCRAMS-VENDOR SCRAMS SCRAMS SCRAMS SCRAMS 'WITH SCRAMS OPER. / 1000

)l51- (151' )151 '<!LI COMPL. CR.HR$

V06TLE l' W 11 9- 0 2 0 22 V0STLE 1 1663 13.23 HARRIS 1 W 4 2 9 1 0 16 HARRIS 1 1216 13.16 BSAILWOOD 1 W 0 0 0 4 0 4 BRAIDWOOD 1 369

  • i NIN: MILE E0lNT 2 GE O 2 0 0 0 2 NINE MILE FOINT 2 497 4.02

.FERRYl- BE 3 1 3 1 0 8 FERRY l- 2329 3.43 LASALLE 2- GE 1 0 0- 0 0 i LASALLE 2 364 2.75

- QlLLSTONE 3 .W 7 2. 0 0- 0 9 MILLSTONE 3 3428 .2.63 BVRON 2 W 3. 3 1 0 0 7 BYRON 2 3325 2.!!

'TUREEY POINT 3 W l .1 1 0 0 3 TURKEY FDINT 3 1428 2.10 C00FERl- BE 4 1 0 2- 0 7 C00FER 1 4007 1.75 WNP2- GE 3 0 1 0 1 4 WNP 2 2424 1.65 FERM1 2 EE 4 0 0' 0 1 4 FERH1'2 251; 1.59 INDIAN FDINI 3 W 3 1 0 0 0 4 INDIAN FDINT 3 2642 1.51 T91 l' EW l 2 0 0 0 3 TMI I 2029 1.48 WATERFORD 3 CE -1 0 0 0 0 5 WATERFORD 3 3376 1.46 SAINI LUCIE l' CE 2 2 .0 .0 0 4 SAINT LUCIE 1 2776 1.44

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WOLF CREEK 1 W 6 0 0 0 1 6 WOLF CREEK 1 4189 1.43 3]ABLO CANTON 2 W 1 2 0 0 0 3 DIABLO CANYDN 2 2133 1.41

- s' CATAWiiA 2 W 3 0 2 0 2 5 CATAWBA 2 3776 1.32 CLINTON 1 GE 1 0 1 1 0 3 CLINTON 1 2268 1.32 LASALLE 1. 6E 4 0 0 0 0 4 LASALLE I 3144 1.27 RDBlNSM 2 W 0 3 0 0 0 3 ROBINSON 2 2395 1.25 FARLEY I- W 3 1 1 0 0 5 FARLEY I 4092 1.22 F00T 51. VRAIN 1 6A 1 0 1 0 0 2 FDRT ST. VRAIN 1 1710 1.17 BEAVER VALLEY l N 4 0 0 0 0 4 BEAVER VALLEY 1 3405 1.17 FEACH BOTTOM 3 GE i 1 0- 0 0 2 FEACH BOTTOM 3 1825 1.10 PAllSALES 1 CE 0 0 2 0 0 2 PALISADES 1 1937 1.03

. CATAWBA 1- W 2 0 1 1 1 4 CATAWBA 1 3932 1.02 DIABLO CANYON 1 W 4 0 0 0 1 4 DIABLO CANYON ! 4147 0.96 000t? W  ! 2 0 0 0 3 COOK 2 3159 0.95 SAINT LUCIE 2 CE 4 0 0 0 0 4 SAINT LUCIE 2 4280 0.93 BIG ROCK POINT I SE O 2 0 0 0 2 B16 ROCK F0lN1 1 217B 0.92 SURRY 2 W 0 2 0 0 0 2 SURRY 2 2476 0.81 DRESLEN 3 GE 3 0 0 0 0 3 DRESDEN 3 3644 0.78 SALEM 2 W 2 1 0 0 0 3 SALEM 2 3963 0.76 NORTH ANNA 1 W 2 0 0 0 0 2 NDRTH ANNA 1 2647 0.76 MONTICELLO 1 GE 3 0 .0 0 0 3 MONilCELLO 1 4119 0.73 CALVERT CLIFFS 1 CE O O 2 0 0 2 CALVERT CLIFFS 1 2766 0.72 l

-DCONEE2 BW 3 0 0 0 0 3 DCONEE 2 4204 0.71 kATCH1 BE 2 0 0 0 0 2 HATCH I 2814 0.71 LACROSSE 1 AC 1 0 1 0 0 2 LACROSSE 1 2005 0.71 i

BRUNSWICK 1 6! 0 1 0 0 0 i BRUNSWICK ! 1455 0.69 i DYSTERCREEK1 GE 2 0 0 0 0 2 OYSTER CREEK 1 3085 0.65 I TURLEY POINT 4 - W l 'O I 0 0 0 1 TURLEY POINT 4 1552 0.64 FALD VERDE 1 CE 2 0 0 0 0 2 PALD VERLE 1 3155 0.63 I

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SUMMARY

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g 01/01/87 TO 06/30/87.'"

PLANT NSSS: [ Al'70 ? UTO MANUAL MANUAL SCRAMS .TuiAL PLANT CR. HRS SCRAMS VENDOR SCf06 ELM @ SCRAM 3 SCFAMS WITH KRAMS OPER. / 1000

>l5% ' f ! R 3151' <l51 COMPL. 3 CR. HRS 1-  ; s l

. LRESDEN 2 ~ GE - 1 0 0 0 'r 0 1DRESDEN2 1649.- 0.61 LAVIS BES5E 1 ' BW 2 0- 0 -0 L l' 2 DAVIS BESSE 1 3317 0.60-TEWAUNEE l' .W Ig 1 0' 0 .0 2 EEW W EE 1 3450 0.56 CALVERI CLIFFS 2 CE 1 0 0 0 0 q  ! CALVERT CLIFFS 2 1733 0.58 B(RON1 'W 0 1 .0 0 0 1 BYRON 1 i 1873 0.53 GliLS10'4I': CE 2 IO 0 0 0 2 MILLSTONE 2 ' 3904 0.51' COOL 1 W  ! l 0 0 0 2 COOK 1 3909 0.51

,,1172rATFsICKl' GE 1 0 'O O O 1 FillPATRICL 1 2002 0.50 UtVERBEND1 GE-  ! l 0 0 0' .) 2 RIVER BEND 1 4017. 0.50

. 5RUNSWICK 2 GE  : 0 0 0 J. "

, 2 BRUNSWICK 2 3963 0.50 i's )%

' '1NDIAN PUINI W 2l 0 1 0 1' '

2 IUDIAN POINT 2 4043 0.49 H0FE CREEK 1 GE I 0 0 1. 0 2 HOPE CREEK 1 4172 0.45 SUMMER 1 W l 0 0 0 0' 1 SUMMER I 2094 0.4B

'MCSUIRE 1 t 2 0 0 0 0 2 MC6UIRE 1 4226 0.47 SAN DN2FRE 2- CE 1 0 1 0 0 2 SAN DNGFRE 2 4252 0.47 HATCH 2 LE 2- 0 0 0 0 2 HATCH 2 4306 0.46 ZION 1 'W s 0 1 0 0 0 1 Il0N 1 2177 0.46 TROJAN 1 h 1 0- 0 0 0 1 TROJ M 1 2151 0.46 SURRY ! .

'h  ! 0 0 0. 0 1SURRY! 2274 0.44 MA PE VANLEE 1 CE O 0 1 0 0 1 MAINE'Y M EE 1 2401 0.42 PALD VERDE 2 CE 1' 0, 0 0 0 1 PALD VERDE 2 2659 0.38 SAN ONDFRE 3 .E 1 C. 0 0 1 1 SAN ONDFRE 3 2738 0.37 MCSUIRE 2- .W  ! 0 0 0 1 1MC6UIRE2 2825 0.35 PRAIR!E ISLAND l- W l 0 0 0 0 1 PRAIRIE ISLAND 1 2076 0.!5 7ANKEE RDWE'l W  ! 0 0 0 0 1 YAFKEE RDWE 1 2866 0.35 PolNT BEACH 1 W D 0 0 1- 0 1 P0lNT BEACH I 2987 0.33 SAN DN0FRE 1 'W. 1 0 0 0 0 1 SAN DNOFRE 1 3033' 0.33 CALLAWAY l W D 1 0 0 0 1CALLAWAY! 3378 '0.30 ARKANSAS 2 CE O 1 0 0 0 1 ARKANSAS 2 3573 0.28 00ADCITIES2 BE 1 0 0 0 0. I DUAD CITIES 2 3716 0.27 MILLS 10NE 1 GE 1 0 0 0 0 1 MILLSTONE 1 3725 0.27 FARLD 2 W l 0 0 0 0 1 FARLEY 2 3966 0.25 l

SUSQUEHANNA2 GE 1 0 0 0 0 1 SUSQUEHANNA 2 4067 0.25 SUSDUEHANNA I BE 1 0 0 0 0 1 SUSQUEHANNA 1 4051 0.25 SALEMi W .1 0 0 0 0 1 SALEM 1 4158 0.24 GRAND EULF 1 SE  ! 0 0 0 0 i BRAND BULF 1 4183 0.24 HADDAM NECK 1 W  ! 0 0 0 0 1 FAK AM NECK 1 4309 0.23 09AD ClilES 1 GE 1 0 0 0 0 1 QUAD CITIES 1 4281 0.23 OCONEE 3 EW 0 0 0 0 0 0 DCONEE 3 0.00 1725 BROWNS FERRY l BE D '0 0 0 0 0 3RDWNS FERRY ! 0 0.00 FRA!RIE ISLAND 2 W 0 0 0 0 0 0 PRAIRIE ISLAND 2 4343 0.00 PolNTBEACH2 h 0 0 0 0 0 0 P0'NT BEACH 2 4265 0.00 LIMERICK 1 GE O O O 0 0 0 LIMERICK 1 3137 0.00 SEABROOK 1 W 0 0 0 0 0 0 SEABRDOK 1 0 0.00 SEQUDYAH I W 0 0 0 0 0 0 SEQUOYAH ! 0 0.00

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SCRAM SUMARY 01/01/B7 10 06/30/B7 FLANT NESS AUTO AUID MANUAL MANUAL SCRAM 5 T01AL FLANT CR.HR5 SERAM5 VENLCR 3CRM3 SCRAM 3 SCRAM 3 SCRAM 5 WITH SCFAM5 0FER. / 1000

>l5; US 1151 <151 COMPL. CR.HR5 SEQU0fAH 2 W 0 0 0 0 0 0 SEQUDYAH 2 0 0.00 SH0FEHAM i 6! 0 0 0 0 0 0 SHDEEHAM i 267 0.00 DANCHO SEC0 1 th 0 0 0 0 0 0 RANCHD SEC0 1 0 0.00 FILERin 1 EE O 0 0 0 0 0 FIL6Rin 1 0 0.00 ER063 FERRY 2 EE 0 0 0 0 0 0 BROWN 5 FERRY 2 0 0.00 DUANE ARNDLD 1 GE O 0 0 0 0 0 0UANE ARNDLD i 1776 0.00 ARPAN5AS 1 En 0 0 0 0 0 0 ARKANSAS 1 4110 0.00 FORT CALHOUN 1 CE 0 0 0 0 0 0 FDRT CALHOUN 1 2191 0.00 FALO VERDE 3 CE O 0 0 0 0 0 PALD VERDE 3 0 0.00 GINNA 1 W 0 0 0 0 0 0 61NNA 1 3598 0.00 FEACH BOT 10M 2 GE 0 0 0 0 0 0 FEACH BOTTOM 2 173') 0.00 UERMChi VANtEE ! 6E O O O 0 0 0 VERMONT YANKEE 1 4343 0.00 NORTH ANNA 2 W 0 0 0 0 0 0 NORTH ANNA 2 4132 0.00 CRYSTAL RIVER 3 EW 0 0 0 0 0 0 CRfSTAL RIVER 3 3840 0.00 DC0 NEE 1 Ek 0 0 0 0 0 0 DCONEE 1 4015 0.00 BRDWN3 FERRY 3 GE 0 0 0 0 0 0 BROWNS FERRY 3 0 0.00 NINE MILE FDINT 1 GE O O O O 0 D NINE MILE F0lNT 1 4343 0.00 BEAVER VALLEY 2 W 0 0 0 0 0 0 LEAVER VALLEY 2 0 0.00 ZION 2 h 0 0 0 0 0 0 710N 2 0 0.00 lli 10tal fil 145 48 29 14 12 236 o Scrams occurred before criticality i

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j. II. COMFARISOtJ OF WEElLY STAT]5TICE WITH ITCUSTRY AVEF4GE  !

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SCRAME FOR WEEl Ef1D I tJG i OS/02/E7 SCRAM CAUSE FOWER tJUMBER 1987 1956 19Er OF WEEt,LY WEEi:LV WEEtLi SCRAMS (5> AVERAGE AVERAGE AVEFASE YTD (;'J (4 ) (E) C,

    • POWER '15%

EQUI F . RELATED >15% 4 4.5 4.0 5,4 FERS. RELATED(6) '15% 1 1.3 1.5 2.0 OTHER(7) ~15% 0 1.2 0.4 0.6 4s Subtotal 84 8 7.0 6.5 E.O s* FOWER <15%

EQUIF. RELATED <15% 1 1.2  :.4 1.;

FER5. RELATED <15% 0 0.7 0.8 O.9 OTHER <15% 0 C. O O.2 O. 2

    • Suototal **

1 22 2.4 2.4

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      • Total ***

9 9.2 8.9 10.4 MANUAL VS AUTO SCRAMS TYFE NUMBER 1957 1986 1985

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OF WEEl:LY WEEULY WEEi:LY SCRAM 5 AVERAGE AVERAGE AVERAGE YTD MANUAL SCRAMS O 1.6 1.O 1.O AUTOMATIC SCRAMS 9 7.7 7.9 9.4 O

G

NOTES ,.

1. PLANT SPECIFIC DATA BASED ON INITIAL PEVIEW OF S0.72 PEPORTS FOR THE WEEK OF INTEREST. PERIOD IS MIDNIGPT SUNDAY THROUGH MIDEIGMT SUNDAY SCRAMS ARE PEFINED AS REACTOR PRCTECTIVE ACTUATIONS WHICP PLSULT IN ROD MOTION, AND EXCLUDE PLANNED TESTS OR SCRAMS AS PART OF PLAFNED SHUTDOWN IN ACCOP.CANCE WITF A PLANT PROCEDURE.
2. RECOVERY COMPLICATED BY EQUIPMENT FAILURES OR PEP.SONNEL ERR UNRELATED TO CAUSE OF SCRAM.
3. 19P6 INFORMATION DERIVED FROM ORAS STUDY OF UNPLAFNED REACTOR TRIPS IN 1986. WEEKLY DAJA DETERMINED BY TAKING TOTAL TRIPS

@ IN A GIVEN CATEGORY AND DIVIDING BY S2 WEEKS / YEAR.

i

4. IN 1986, THERE PERE AN ESTIMATED TOTAL OF 461 AtTTOMATIC AND f- MANUAL tiNPLANNED REACTOR TRIPS AT 104 REACTORS (HOLDING OPERAT!'NG LICENSES). THIS YIELDS AN AVERAGE RATE OF 4.4 TRIPS l ,

I' PER REACTOR PER YEAR AND AN AVEPAGE RATE OF S.8 TRIPS PER WEEK e

l FOR ALL REACTORS.

V

~

> S. BASED ON 107 REACTORS HOLDING AN OPERATING LICENSE.

6. PERSONNEL RELATED PROBLEMS INCLUDE HUMAN ERROR, PROCEDURAL J

DEFICIENCIES, AND MANUAL STEAM GENERATOR LEVEL CONTROL PROBLEMS.

'[i

7. 'OTHER" 1NCLUDES AUIDMATIC SCRAMS ATTRIBUTED TO ENVIRONMENTAL CAUSES (LIGHTNING), SYSTEM DESIGN, OR UNKNOWN CAUSE.

f l

B. 1985 INFORMATION DERIVED FROM AN ORAS STUDY OF UNPLANNE IN 1985. WEEKLY DATA DETERMINED BY TAKING TOTAL TRIPS IN A GIVEN l

. CATEGORY AND DIVIDING BY S2 WEEKS / YEAR. .

9. IN 1985 THERE WERE AN ESTIMATED TOTAL OF 541 AUTOMATIC AND F

'l (

UNPLANNED REACTOR TRIPS AT 93 REACTORS (FOLDING FULL POWER LICENSES). THIS YIELDS AN AVERAGE RATE OF 5.B TRIPS PEP. REACTO

. YEAR AND AN AVERAGE RATE OF 10.4 TRIPS PER WEEK FOR ALL REACT L

a b_____.______

o Enclosure 3 l

REACTOR SCRAM

SUMMARY

e WEEK ENDINS (9/02/27 l 1. plt.NT SPECIFIC LATA L

CATE SITE UNIT F0kER KPS CAUSE COMPL1- VfD YTD YTD CATICNS ABD'iE IELOW TOTAL 151 15; 07/27/E7 CATAhEA 2 90 A EQUIP / MECH. N3 6 0 6 07/28/07 VD6TLE 1 100 A PERSCNNEL ND  !!

14 25 07/30/87 CYSTER CEEEK 1 95 A EQUlF/ MECH. ND 3 0 3 07/30/87 HOPE CREEE 1 100 A EQUl?/ ELECT. ND 2 1 3 07/30/E7 lyRON 1 98 A UNXN3WW h3  ! 1 2 07/31/57 EYFON 1 00 A UNKNOWN NO 2 1 3 07/31/67 FEEMI 2 2A EQUlFMENT N3 5 1 6 07/31/87 EATERFCRD 3 100 A EQUlPnENT ND 6 0 6 08/01/67 QUAD CITIES 2 100 A UNKNOWN YES 2 0 2 SUM.".ARY 0F CCP.PLICATICNS SITE UNIT CC5PLICAT!DMS QUAD CITIES 2 2 FUSES FAILED TO TRANSFER - RCIC TRIPPED SCRAM IISCHARCE VOLUME DRAIN VALVES INDICATICN FAILE.:

I

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