ML20153C186
| ML20153C186 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee, Zion, 05000000 |
| Issue date: | 08/23/1988 |
| From: | Jaudon J Office of Nuclear Reactor Regulation |
| To: | Rossi C Office of Nuclear Reactor Regulation |
| References | |
| REF-PT21-88 OREM-88-034, OREM-88-34, NUDOCS 8809010008 | |
| Download: ML20153C186 (15) | |
Text
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ya4 rr MEMORANDUM FOR:
Charles E. Rossi, Director Division of Operational Events Assessment Office of Nuclear Reactor Regulation FROM:
Johns P. Jaudon, Acting Branch Chief Everts Assessment Branch Division of Operational Events Assessment Office of Nuclear Reactor Regulation
SUBJECT:
THE OPERATING REACTORS EVENTS MEETINL August 23, 1988 - MEETING 88-34 On August 23, 1988, an Operating Reactors Events meeting (88-34) was held to brief senior managers from NRR, OSP, AE00, Commission Staff, and Regional Offices on events which occurred since our last meeting on August 16, 1988. The list of attendees is included as Enclosure 1.
The events discussed and the significant elements of these evente are presented in Enclosure 2. presents a summary of reactor scrams for the week ending August 21, 1988 and a scram summary for the first six months of 1988. No significant events were ident1fied for input to NRC's Performance Indicator Program.
Johns P. Jaudon, Acting 8 ranch Chief Events Assessment Branch Division of Operational Events Assessment Office of Nuclear Reactor Regulation
Enclosures:
As stated cc w/Encio.:
See Next Page l
DISTRIBUTION Central File l
EAB Reading File Circulating Copy EAB Staff MLReardon, EAB 00udinot, EAB
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UNITED STATES 8
NUCLEAR REGULATORY COMMISSION o
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WASHINGTON D. C. 20665
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HEMORANDUM FOR: Charles E. Rossi, Director Division of Operational Events Assessment Office of Nuclear Reactor Regulation FROM:
Jchas P. Jaudon, Acting Branch Chief Events Assessment Branch Division of Operational Events Assessment Office of Nuclear Reactor Regulation
SUBJECT:
THE OPERATING REACTORS EVENTS HEETING August 23, 1988 - MEETING 88-34 On August 23, 1988, an Operating Reactors Events meeting (88-34) was held to brief senior managers from NRR, OSP, AEOD, Comission Staff, and Regional Offices on events which occurred since our last meeting on August 16, 1988.
The list of attendees is included as Enclosure 1.
The events discussed and the significant elements of these events are presented in Enclosure 2. presents a sumary of reactor scrams for the week ending August 21, 1988 and a scram summary for the first six months of 1988. No significant events were identified for input to NRC's Performance Indicator Program, on, Acti g %
tLo o ns P. Ja Branth Chief Events Asse sment Branch Division of Operational Events Assessment Office of Nuclear Reactor Regulation
Enclosures:
As stated cc w/Enclo.:
)
See Next Page t
ENCLCSilRE 1 LIST OF ATTENDEES OPERATING REACTORS EVENTS BRIEFING (88-34)
August 23, 1988 NAME' ORGANIZATION NAME ORGANIZATION R. Scholl.
NRR/DOEA M.L. Reardon NRR/DOEA D. Crutchfield NRR/DRSP' W. Minners RES/DRPS D.C. Fischer NRR/00EA P. ' Baranows ky NRR/DOEA V. Benaroya AEOD/DSP B. Boger
' NRR/ADR 1 S. Varga
.NRR/DRP J.W. Clifford DEDRO C.J. Haughney NRR/DRIS D.R. Muller NRR/PD3-1 J. Ramsey NRR/D0EA C. McCracken NRR/ECEB G. Lainas NRR/ADR-2 J. Jaudon NRR/DOEA D. Terao OSP/CP V. Hodges NRR/DOEA M. Chiramal AE00/ROAB
ENCLO5URE 2 t
OPERATING REACTORS EVENTS BRIEFING 88-3l4 EVENTS ASSESSMENT BRANCH LOCATION:
12-B-ll WHITE FLINT i
TUESDAY, AUGUST 23, 1988, 11:00 A.M.
ZION UNITS 1 8 2 THINNING 0F EXTRACTION STEAM (ES)
PlPING GENERIC ISSUE 10 CFR PART 21 NOTIFICATION FROM GE REGARDING BINDING 0F MOVABLE CONTACT FINGERS.lN HFA RELAYS 4
l
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88-34 ZION UNITS'1 8 2 THINNING 0F EXTRACTION STEAM (ES) PIPING JULY 23, 1988 PROBLEM WALL THICKNESS IS LESS THAN NOMINAL IN SOME AREAS, CAUSE EROSION / CORROSION, SAFETY SIGNIFICANCE HAZARD TO PLANT STAFF FROM CATASTROPHIC FAILURE OF THE PIPING AND SYSTEM INTERACTIONS, DISCUSSION o
ON 07/23/88, UNIT I WAS SHUTDOWN TO REPAIR AN ES LEAK, o
ON 08/09/88, UNIT 2 WAS SHUTDOWN TO ULTRASONICALLY TEST ES PIPING, o
EACH UNIT HAS TWO 16-INCH ES PIPES FABRICATED FROM 500 MIL TYPE A-106B CARBON STEEL, o
MINIMUM WALL THICKNESSES IN UNIT 1 WERE O AND 130 Mils AND IN UNIT 2 WERE 190 AND 370 MILS, o
SURFACE AREAS THINNED TO LESS THAN 300 MILS IN UNIT 1 WERE 1,5 SQ, FT, IN EACH PIPE AND IN UNIT 2 WERE 0 AND 1,3 SQ, FT, o
THIS EVENT IS COVERED BY SURRY BULLETIN 87-01, IN 86-106, AND SUPPLEMENTS 1 AND 2 T0 IN 86-106, o
THE BULLETIN COVERS CONDENSATE, FEEDWATER, STEAM, AND CONNECTED HIGH-ENERGY SYSTEMS, WHETHER SAFETY-RELATED OR NONSAFETY-RELATED, o
BULLETIN RESPONSES ARE SUMMARIZED IN IN 87-17, WHICH STATES THAT THINNING PROBLEMS IN TWO-PHASE PIPING EXISTS IN VIRTUALLY ALL OPERATING PLANTS, o
NUMARC, EPRI, AND INP0 HAVE PROVIDED A PROGRAM FOR MONITORING SINGLE-PHASE PlPING BUT NOT FOR TWO-PHASE PIPING, o
ZION HAS HAD A MARGINALLY ADEQUATE, INFORMAL PROGRAM SINCE 1982, 1
)
CONTACT:
R. WOODRUFF
REFERENCE:
50.72 # 12936 AND MORNING REPORTS FROM 07/25/88, 08/10/88, AND 08/15/88: BULLETIN 87-01, IN 86-106, SUPPLEMENT 1 & 2, IN 88-17
x
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2-88-314
- ZION UNITS-1 & 2 1
g.,
o EPRI EXPECTS-TO ISSUE A TWO-PHASE PROGRAM DURING 12/88, i
1 F0ll0WUP 1
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.N0' ADDITIONAL F0ll0WUP IS PLANNED AT THIS TIME..
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- _ _ _ - - _. - - _ - - _ - _ _ _ - - - _ _ _ _ _ - _ _ _ _ _. - - - _. _ _ -, _. - _ - - _ -. - - _ -. - _... _ - - -. - - _ _ _. - - - - -. _ _ _ _ _ -. _ - -. - _ _ _. - - - -. - - - - _ _ _ _. - - _ - - - - - - _. = _ - - _. - _ _. _ _ _ _ -. - _ - - _ _ - - - -
88-34 10 CFR PART 21 NOTIFICATION FROM GE REGARDING BINDING 0F MOVABLE CONTACT FINGERS IN liFA RELAYS AUGUST 17, 1988 PROBLEM o
BINDING OF MOVABLE CONTACT FINGERS IN GE HFA RELAYS, CAUSE o
MOVABLE CONTACT FINGERS WERE MANUFACTURED WlDER THAN THE ALLOWABLE TOLERANCE, SAFETY SIGNIFICANCE o
POTENTIAL FOR RELAYS NOT PERFORMING THEIR INTENDED FUNCTION, DISCUSSION o
A LICENSEE HAS HAD DlFFICULTY MAKING WIPE AND GAP SETTINGS OF SOME ilFA RELAYS (CORRECT WIPE AND GAP SETTINGS ARE NECESSARY TO MAINTAIN CORRECT OPERATION AND SElSMIC RATING OF'THE RELAY),
o GE DETERMINED ROOT CAUSE TO BE MOVABLE CONTACT FINGERS THAT WERE MANUFACTURED WIDER THAN THE ALLOWABLE TOLERANCE (APPARENT QA-0C BREAKDOWN ALLOWED OUT OF TOLERANCE FINGERS TO BE UTillZED IN HFA RELAYS FOR AT LEAST 20 YEARS),
o POTENTIAL FOR SIMILAR PROBLEM APPLIES TO ALL HFA RELAYS, o
GE RECOMMENDS ALL HFA RELAYS BE CHECKED TO DETERMINE IF A BINDING CONDITION EXISTS, F0LLOWUP o
STAFF ISSUED INFORMATION NOTICE 88-69 ON AUGUST 19, 1988 TO PROMPTLY ALERT INDUSTRY TO THIS SITUATION, o
STAFF REVIEW IS CONTINUlNG, o
ADDITIONAL ACTIONS WILL BE TAKEN, IF APPROFRIATE, UPON COMPLETION OF STAFF REVIEW, CONTACT:
J. RAMSEY
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ENCLOSURE 3 i
PyeNo.
1 i
08/22188 l
PERFORhMCE INDICATORS SISN!FICANT EVEF4 PL HT MAME EVENT EVENTDESCRIPT!0N IfR SiONIFICMCE DATE 1
MAINYWEE 08/13198 SCRAM COWLICATED IV RESERVE BRE MERS FAILING TO CLOSE 1 SCRM u!TM COWLICATIONS i
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SUMMARY
M EK EhelW6 Ol/21/N f
I. PLMT SPECIFIC MTA l-l MIE SITE Uh!T POWER S!6hAL CAUSE COMPL1-Yip Yip Yip CAT 10NS ANVE MLON TOTAL f
151 151 08/15/89 SURRY 1
100 A EQUIPMENT NO 2
0 2
08/15i86 MAND 6'AF i 100 A EQUIPMENT N0 4
0 4
08/16/88 SOUTH TEIAS 1
100 A EQUIPMENT NO 2
1 3
08/16/89 TROJAN 1
IM A E00!PMENT NO 2
0 2
OE/19/f! TUCKEY POINT 4
10'. A EQU!PMENT NC 1
1 2
08/21/!8PALOVERIE 1
75 A EQUIPMENT N0 4
1 5
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1 Pheno.~
08/22/88
$CRM SUMARY 01/01/98 10 06/30/88 PLANT NS$5 AUTO AUTO MANUAL MNUAL SCRAMS TOTAL PLANT CR. HRS SCRMS
'ENDCR SCRARS SCRAMS SCRMs SCRAh5 WITH SCRAMS OPER. / IMO i
)151 (151 )!M (!$1 COMPL.
CR.HR$
f ARKAhSAS1 IW 1
0 0
0 0
1 ara uSAS 1 4335 0.23 ARKA4CAS2 CE 0
0 0
0 0
0 ARKANSAS 2 2004 0.H BEAVER VALLEY 1 W 1
2 0
0 0
3 DEAVLR VALLEY 1 2862 1.05 DEAVERVALLEY2 W 2
0 0
0 0
2 DEAVER VALLEY 2 3947 0.51 816 ROCK POINT 1 GE 0
1 0
1 0
2 316 ROCK POINT 1 2223 0.90 BRAIDt00D1 W
0 0
0 0
0 0 BRAIDWOOD 1 1643 0.M BRAIDWOOD 2 W
0 0
0 0
0 0 BRAIDWOCD 2 688 0.M IRCWh5 FERRY 1 GE 0
0 0
0 0
0 MCWNS FERRY 1
(
0.00 BRCWNS FERRY 2 6E 0
0 0
0 0
0 BROWNS FERRY 2 0
0.M
~
MCWNSFERRY3 BE 0
0 0
0 0
0 BROWNS FERRY 3 0
0.M IRUNSWICK 1 6E 0
0 0
0 0
0 BRUNSWICK 1 3661 0.00 BRUNSu!CK 2 6E 0
1 1
0 0
2 BRUNSWICK 2 1411 1.42 BYROM 1 W
1 0
0 0
0 1 SYROM 1 3471 0.27 BYRON 2 k
2 0
1 0
0 3 BYRON 2 4311 0.70 CALLAWAY 1 W
3 1
1 0
0 5 CALLAWAY 1 3960 1.26 CALVERT CLIFFS 1 CE 0
0 0
0 0
0CALVERTCLIFFS1 2370 0.M CALVERT CLIFFS 2 CE 2
0 0
0 0
2 CALVERT CLIFFS 2 3410 0.59 CATAtlA1 W
0 1
0 0
0 1 CATAWM 1 Mel 0.25 CATAWIA2 W
4 0
2 1
1 7 CATAWBA 2 2252 3.11 CLINTON 1 6E 0
1 0
0 0
1 CLINTON 1 3283 0.30 COOK 1 W
1 0
0 0
0 1 COOK 1 4314 0.23 COOK 2 W
0 0
0 0
0 A COOK 2 2716 0.M l
CCDPER 1 6E 1
0 0
0 0
200PER 1 1629 0.61 CRYSTAL KlVER 3 SW 1
0 0
0 1
1 CRYSTAL RIVER 3 4096 0.24 i
i DAVIS MSSE 1 SW 0
0 0
0 0
0 DAVil MSSE 1 1661 0.M IIABLO CANYDN 1 W 1
0 0
0 0
1 l!AR O CANYON 1 1532 0..$
DIABLO CANYON 2 W 0
0 0
0 1 l!ARO CMYON 2 43M 0.23 DRESDEN 2 6E 0
0 0
0 0
0 MESKM 2 4M6 0.M DREStEN 3 SE 0
0 0
0 0
0 BRESKN 3 2199 0.M DUANE ARNOLD 1 6E 0
0 0
0 0
0 SUAE At#0LD 1 4346 0.00 FARLEY 1 W
0 6
0 0
0 0 FARLEY 1 3023 0.H FARLEY 2 W
0 0
0 0
0 0 FARLEY 2 4367 0.M FEMI 2 6E 2
1 0
1 0
4 FEMI 2 2078 1,92 FIT! PATRICK 1 6E 0
0 0
0 0
0 Flf! PATRICK 1 3985 0.M FORT CALHOUN 1 CE 0
0 0
0 0
0 FORT CALHOUM 1 4367 0.00
- DAT ST. VRAIN 1 64 1
0 3
0 0
4FORTST.VRAINi 3679 1.09 6!MA 1 W
2 1
0 0
1 3 GINNA 1 3277 0.92 6 RAND BULF 1 6E 3
0 0
0 0
3 IRMO SLAF 1 4153 0.72 HADDAM NECK 1 W
1 2
0 0
0 3 MDOM ECK 1 1760 1.70 HARRIS 1 W
0 0
0 0
1 MAM ll !
4177 0.24 MTCH 1 GE 3
0 0
0 0
3 MTCH 1 3354 0.89 MTCH 2 GE 3
1 1
0 0
5 MTCH 2 2M7 2.40 HOPE CREEK 1 GE 1
1 1
0 0
3 HOPE CREEK 1 2936 1.02 INDIAN PolW1 2 W
1 1
0 0
0 2 I H: M Polui 2 3637 0.M
^
Pap No.
2 s
08/22/89 SCRAM SumARY 01/01/98 TO 04/30/88 PLMT WS$$
AUTO AUTO MANUAL MANUAL SCRAMS TOTAL PLMT CR.WRS SCRMS VENDOR SCRAMS SCRAMS SCRMS SCRMS WITH SCRus OKR. /1000
>151 <!51 >151 (151 COMPL.
CR. HRS f
INDIANPOINT3 W
2 0
1 0
0 3 IMIM POINT 3 3828 0.78 KENAUkEE 1 W
3 0
0 0
0 3 KEWAUNEE 1 3410 0.88 LACROSSE 1 AC 0
0 0
0 0
0 LACROSSE 1 0
0.00 LASALLE 1 6E 0
0 0
0 0
0 LASALLE 1 1730 0.00 LASALLE 2 6E 1
0 0
0 0
1 LASALLE 2 41M 0.24 LIMERICK 1 6!
0 1
0 0
0 1 LIMERICK 1 4059 0.25 MAINEYAkKEE1 CE 1
0 0
0 0
1 MAINE YANKEE 1 4351 0.23 MC6UIRE 1 W
3 0
1 0
0 4 MC64!RE 1 4286 0.93 MC6UIRE 2 W
0 0
1 o
0 1 MC6UIRE 2 3515 0.28 MILLSTONE 1 BE 1
0 0
0 0
1 MILLSTONE 1 4338 0.23 4
MILLSTCNE 2 CE 0
0 0
0 0
0 MI:LSTONE 2 2542 0.M MILLSIONE 3 M
2 0
0 0
1 2 MILLSTONE 3 3228 0.62 i
ENilCELLO 1 SE 0
0 0
0 0
0 MONTICELLO 1 4367 0.00 N!ht MILE POINT 1 6E 0
0 0
0 0
0 NINE MILE POINT 1 0
0.M NINE MILE POINT 2 6E 5
1 0
0 1
6 NINE MILE POINT 2 1583 3.79 ERTH AN44 1 W
0 2
1 0
1 3 NORTH A e4 1 3442 0.82 i
NORTH AMA 2 W
0 0
0 0
0 0 NORTH ANNA 2 4310 0.00 OCONEE1 CW 0
0 0
0 0
0 DCONEE 1 4347 0.M OCONEE 2 DN 0
0 0
0 0
0 DCONEE 2 2000 0.M OCONEE 3 IW 0
0 0
0 0
0 OCONEE 3 3051 0.M OfSTER CREEK 1 E
0 0
0 0
0 0 OYSTER CREEK 1 4347 0.00 PN.!SAMS 1 CE 0
0 0
0 0
0 PAllSAR S 1 3457 0.00 PALDVERDE1 CE 2
1 0
0 0
3 PALO VDtM 1 2579 1.16 PALD VERM 2 CE 0
0 0
0 0
0 PALO VERM 2 1513 0.00 PALD VERDE 3 CE 0
0 0
0 0
0 PALO VERN 3 42M 0.00 PEACH B01105 2 BE 0
0 0
0 0
0 MACH SOTTOM 2 0
0.00 PEACH 80T10M 3 6E e
0 0
0 0
0 MACH BOTTOM 3 0
0.00 PERRY !
SE 4
3 0
0 0
7 M RRY 1 3054 2.29 PIL6R!M1 E
0 0
0 0
0 0PILSRIM1 0
0.00 POINT H ACH 1 W
0 0
0 0
0 0 POINT BEACH 1 3431 0.00 f
POINT KACH 2 W
0 0
0 1
1 POINT SEACH 2 4341 0.23 PRAIRIE ISLAG 1 W 0
0 0
0 0
0 PRAIRIE ISLAND 1 4285 0 40 PRA!RIE ISLAG 2 W 0
0 0
0 0
0 PRAIRIE ISLAND 2 349 0.A DUADCITIES1 E
0 0
0 0
0 0 OUAB CITIES 1 4110 0.00 0040 CITIES 2 E
2 0
0 0
0 2 9U48 CITIES 2,
2441 0.82 RACHO SECO 1 IW 1
0 0
0 0
1 RANCHO SECO 1 1973 0.51 RIVER M G 1 E
2 1
0 0
0 3 RIVER Kul !
42M 0.71 R0ilNSON 2 W
3 0
0 0
0 3R00lus0N2 3205 0.94 SAINTLUCIE1 CE 2
0 0
0 1
2 SAlWT LUCIE 1 4328 0.46 SAINT LUCll 2 CE 0
0 0
0 0
0 SAINT LUCIE 2 4347 0.00 SALEM 1 W
0 1
1 0
0 2 SALEM i 2600 0.74 SAlEM 2 W
3 1
0 0
0 4 SALEM 2 4245 0.94 SANONOFRE1 W
0 0
0 0
0 0 SAN ONOFRE 1 1M9 0.M SAN ONOFRE 2 CE 0
0 0
0 0
0 SM ON0FRE 2 3110 0.M i
e
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Pap No,-
3 08/22/88
$ CRAM
SUMMARY
01/01/88 TO 04/30/88 PLWT NSSS AUTO AUTO MANUAL MANUAL SCRAMS TOTAL PLMi
'CR. HRS SCRAMS VENOCR SCRAMS SCRAMS SCPVS SCRAMS WITH SCRMS OPER. /1000
>151 (151 >151 (151 COMPL.
0 1
0 0
1 SAN ON0FRE 3 2632 0.38 SEABRDOK 1 W
0 0
0 0
0 0 SEABROOK 1 0
0.00 SE000YAH 1 W
0 0
0 0
0 0 EQUOYM 1 0
0.00 SEQUOYAH 2 W
4 1
0 2
0 7 SEQUDYAH 2 765 8.92 SHOREHAM 1 E
0 0
0 0
0 0 SHOREHAM 1 0
0.00 EDUTH TEIAS 1 W
0 1
0 0
0 1 SOUTH TEIAS 1 1193 0.54 SumER 1 W
3 0
0 0
0 3 SUMER 1 4105 0.73 SURRY 1 W
1 0
0 0
0 1 SURRY 1 2313 0.43 SURRY 2 W
1 0
1 0
0 2 St'tAY 2 3223 0.62 SUSQUEHAW A 1 E
2 0
0 0
0 2 SUS 0UEHAmA 1 3873 0.52 SUSQUEHAHA 2 E
0 0
0 0
0 0 SUSQUEHAmA 2 1905 0.00 iMI 1 SW G
0 0
0 0
0TMI1 3911 0.00 TROJAN 1 W
1 0
0 0
0 1 TROJM i 2345 0.43 TURKEY P0lWT 3 W
0 0
0 1
0 1TURKEYPO!NT3 3171 0.31 TURKEY FOINT 4 W
0 0
0 0
0 0 TURKEY POINT 4 3246 0.00 VERMONT YAkKEE 1 SE 2
0 0
0 0
2 VERM0WT Y MKEE 1 4201 0.4I V06TLE 1 W
3 0
1 0
0 4 V06TLE 1 3689 1.04 MTERFORD3 CE 1
1 1
0 0
3 MTERFORD 3 2041 1.05 WNP 2 GE 1
0 1
0 0
2 WIP 2 2424 0.83 WOLF CREEK 1 W
0 0
0 0
0 0 WOLF CREEK 1 3764 0.00 YMKEE R0WE 1 W
3 0
0 0
0 3 Y MKEE ROWE 1 4265 0.70 210N1 W
1 1
0 0
0 2 !!DN 1 2644 0.76
!!0N2 W
0 0
0 0
0 0 !!0N 2 4347 0.00 lli Total til 1H 29 20 6
8 155 i
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M
_m.
I Observations Related to Scram Sumary for Period January 1, 1988 - June 30, 1988 Plants With Highest Trip Rates (Scrams per 1000 critical hoursi Plant Trio Rate Critical Houis of (scrams /1000 critical hours)
Operation Sequoyah 2 8.92 785 Nine Mile Point 2 3.79 1583 Catawba 2 3.11 2252 Hatch 2 2.40 2087 Perry 2.29 3056 Fermi 1.92 2078 Haddam Neck 1.70 1760 Brunswick 2 1.42 1411 Ca11away 1.26 3960 Palo Verde 1 1.16 2579 The average trip rate is." 0.55 for the period January 1. 1988-June 30, 1988 The average trip rate was ~_.1.0 last year for the same period.
Plants With No Scram and largest Number of Critical Hours of Operation Plant Critical Hours of i
Operation Farley 2 4367 Fort Calhoun 4367 Monticello 4367 Oconee 1 4367 Oyster Creek 4367 Saint Lucie 2 4367 Zion 2 4367 Duane Arnold 4346.
North % : 2 4318 Prairie Island 1 4285 Palo Verde 3 4200 e
i 1