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L Jt!N 8 1987
~ MEMORANDUM FOR: . Charles E. Rossi, DirectorDivision' of Operational Events Assessment
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FROM: Wayne Lanning, Acting ChiefEvents Assessment Branch-Division of Operational Events Assessment ,{
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SUBJECT: - THE OPERATING REACTORS EVENTS MEETING -)APRIL'6, 1987 - MEETING 87-10g -i
~ lOn| April 6,1987, an Operating Reactors Events meeting (87-10) was ' held to
]brief senior managers. from NRR, RES, AE00 and Regional Offices.on ev0ntswhich occurred since our last meeting on March 30,: 1987. - The list of. attendees .is included as Enclosure 1.
-The events 'iscussed-and the significant elements of these" events are presented )din Enclosure 2. Enclosure 3 provides a summary of reactor scrams and j
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t-. "significant events" that will be input to NRC's performance indicator program.
Original Signed by+ . Wayne D, Lanning
Wayne Lanning, Acting Chief'
.eEvents Ass'essment Branch.
'
Division of Operational Events Assessment *
. Enclosures:'
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As stated50 2G3- 50 ~20 l ,
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Charles E. Rossi -2-
cc: T. Murley- H. Pastis '
J. Sniezek .B. YoungbloodR. Starostecki S. McNeil-J. Taylor R. CapraE. Jordan G. KalmanE.'Beckjord' G. KnightonW. Russell, Reg..I-
.
-J. Nelson Grace. Reg. II i
B. Davis, Reg. IIIR. D. Martin, Reg. IVJ. B. Martin, Reg. VW. Kane, Reg. I-L. Reyes, Reg. II 1
C. Norelius, Reg. IIIE. Johnson, Reg. IV-D. Kirsch, Reg. V-S; Varga-
' D. Crutchfield -B. BogerG. LainasG. HolahanF.:Schroeder-L. ShaoJ. Partlow -
B. Grimes.F. CongelH. MillerE. WeissS. BlackT. Martin,-EDOF. MiragliaE. MerschoffR. Hernan
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?. ENCLOSilRE 1
-LIST OF ATTENDEES'
OPERATING REACTORS EVENTS BRIEFING (87-10)
APRIL 6, 1987
o
NAME . DIVISION NAME DIVISION
J. Sniezek NRR G.'Holahan' .NRR
R. Smith- DEPER H. Pastis NRR
M. Chiramal. AE00- W. Lanning AEOD
K.-Eccleston TOSB J. Clifford 'NRR
|- S. Black- NRR V. Benaroya NRR
G. Murphy ORNL 5. McNeil' NRR
G. Klingler IE- W. Haass- ~IE
' G. Kalman NRR M. Virgilio NRR
- J. Rosenthal' IE. A. Thadani NRR
T..Novak NRR F. Miraglia NRR |T. Gwynn OCM. F. Schroeder NRR
R. Bernero- 'NRR W.'Swenson NRR
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ENCLOSURE 2.
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0PERATIflG PEACTOR EVENTS BRIEFIMG 87-10
APRIL 6,1987
OCONEE:1, 2,.3 FOULING.0F LOW. PRESSURE SERVICE WATER,
LOW PRESSURE INJECTION, AND.,
REACTOR BUILDING COOLING UNITS
CALVERT CLIFFS 1 UNIT SHUTDOWN DUE T0 ENVIRONMENTAL
QUALIFICATION PROBLEMS
OTHER FVENT'0F INTEREST
RANCHO SEC0' POWER CHANNEL DESIGN DOES NOT MEET
SEPARATION CRITERIA
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APPIL 6, 1987-
OCOMEE 1, 2 AND 3 - FOULING OF LOW PRESSURE,SEPVICE WATER, LOW PPFSSllPF INJECTION AND
REACTOR BUILDING COOLING UNITSMAPCP 3), 1987 - (H, PASTIS, NRR)
PROBLEM: FOULING OF THE LOW PRESSURE INJECTION (LPI) AND REACTOR ,
BillLDING COOLING UNIT (RPCU) HEAT EXCHANGER LIMITSOPERATING POWEP
CAUSE: LAKE SEDIMENT :
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SIGNIFICANCE:
EQUIPMENT INCAPABLE OF PERFORMING DESIGNED SAFETY FUNCT10tl*
DISCUSSION:
UNIT 3 WAS STARTING UP FROM ITS REFUELING OUTAGE AND TESTING*
THE REACTOR BUILDING COOLING UNITS AT NORMAL OPERATING CONDITIONS
THE LOW PRESSURE SERVICE WATER TAKES PAW LAKE WATER TO COOL THE*
LPI AND RBCU
LICENSEE ANALY7ED THE TEST DATA AFD CORRELATED IT TO*
EMERGENCY CONDITIONS j
THE ANALYSIS SHOWED THAT UNDEP LOCA CONDITIONS, THE COOLERS WOULD*
NOT PERFORM AT DESIGil RATINGUNIT 3 WAS BROUGHT TO COLD SHUTDOWN; Ut!1T 2 TO 60% POWER: ,
*
AND UNIT 1 TO 89% POWER
FOLLOW-UP:LICENSEE WILL CHEMICALLY CLEAN THE COOLERS FOR llNIT 3,*
HAS NOT YET DEVELOPED PLANS FOR OCONEE UNIT 2 AND 1 C00LEPS i
NRR ISSUED TEMPORARY WAIVER OF COMPLIANCE WHILE PROCESSING AN*
EMERGENCY AMENPMENT TO THE TECHNICAL SPECIFICATIONS
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APRIL 6, 1987-
CALVERT CLIFFS 3 - IINIT SHUTDOWN
DUE TO FNV!PONMENTAL OttALIFICATION PROBLEMSAPRIL 1, 1987 - (S. A MCNEIL, NRR)
PROBLEM: LICENSEE SHUTDOWN UNIT 1 TO INVESTIGATE ADEQUACY OF
ENVIRONMENTAL CUAllFICATION OF MOTOP OPERATED VALVES ANDS0LENDID OPERATED VALVES,
CAUSE: INCOMPLETE LICENSEE VEPIFICATION OF ENVIRONMENTAL QUAllFICATION
OF SAFETY-RELATED ELECTRICAL EQUIPMENT
SIGNIFICANCE: POTENTIAL FOR FAULTY ENVIRONMENTAL QUAllFTCAT10N'0F OTHER
SAFETY-RELATED ELECTRICAL COMPONENTS WHICH C0llLD Fall
WilEN REQUIRED FOR SPECIFIC DESIGN BASIS EVENTS
DISCUSSION:.MARCH 14, 1987 - UNIT 2 SHUTDOWN FOR REFUELING*
REGION I ENVIRONMENTAL QUALIFICATION INSPECTION TEAM IDENTIFIED THE*
USE OF TAPE IN ELECTRICAL SPLICES ON UNIT 2 THAT WAS NOTENVIRONMENTALLY QUALIFIEDTO BE ENVIRONMENTALLY QUALIFIED, THE METHOD OF TAPING, THE TYPE OF*
TAPE AND THE LOCATION MUST BE CONSIDEREDAPRIL 1, 1987 - LICENSEE SHUTDOWN UNIT 1 TO INVESTIGATE POTENTIAL*
ENVIRONMENTAL QUALIFICATION PROBLEMS !
APRIL 3,_1987 STATUS OF INSPECTION*
44 0F 83 SOLEN 0ID OPERATED VALVES INSPECTED, 12 VALVES HAVE-
TAPED SPLICES, UNQUAllFIED WIPING IN 5 VALVES13 0F 40 MOTOR OPERATED VALVES INSPECTED, Al.L SPLICES WERE-
ACCEPTABLE. ENVIRONMENTAL QUALIFICATION OF SillCON INSULATEDINSTPllMENTATION WIPING ON 5 MOTOR OPERATED VALVES WAF !DUESTIONABLE,
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CALVFRT-CLIFFS 1 (CON'T).
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FOLLOWilP ;
LICENSEE:
CONTINUE UNIT 1 ENVIPONMENTAL QUALIFICATION INSPECTION OF POTOP*
OPEPATED VALVES AND SOLENnID OPERATED VALVES
REPLACE TAPED SPLICES WITH RAYCHEM HEAT SHRINK TUBING*
INSPECT'480 VAC MOTOPS FOR' ENVIRONMENTAL QUALIFICATION*
DEVISE NEW CHECK LISTS AND INSPECT ALL PENETRATIONS AND*
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INSTRUMENTATION AND CONTROLS FOR ENVIRONMENTAL QUALIFICATION
CONTRACT AN INDEPENDENT ENVIRONMENTAL QUALIFICATION AUDIT j*
BRIEF REGION 1 AND NRR WHEN LICENSEE IS SATISFIED THAT UNIT 1 IS*
FULLY QUALIFIEDADDPESS STATUS 0F ENVIRONMENTAL QUALIFICATION FROM NOVEMBER 30, 1985*
4
TO PRESENT AND HOW THESE PROBLEMS AROSE
REGION 1:* DETERMINE IF LICENSEE HAS SATISFACTORILY OUALIFIED. UNIT 1 PRIOP
T0 PERMITTING RESTART*
CONDUCT FOLLOWUP INSPECTION LATER THIS YEAR
NRR: ASSIST REGION I WHERE NECESSARY
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APRll 6, 1987,.-
OTHER EVENT OF INTEREST
RANCHO SECO - POWER CHANNEL DESIGN
DOES NOT MEET SEPARATION CRITERIA'
april 6, 1987 - (GEORGE KALMAN, FPR)
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PROBLEM: EACH SET OF TWO POWFP CHANNELS SUSCEPTIBLE TO-COMMON MODE FAllllRE
CAUSE: B8W DESIGN ERROR
SIGNIFICANCE:
SAFETY SYSTEM SEPARATT.0N COMPROMISED. POTENTIAL FOP SINGLE FAILURE*
TO DISABLE REACTOR TRTP
DISCUSSION:* FEBRUARY 214, 1987, B&W NOTIFIED LICENSEE OF POTENTIAL PROBLEM WITH
SEPARATION OF POWER CHANNELS'
*
RPS CHANNELS A&D FEED COMMON ICS POWER AVERAGER''
PPS CHANNELS C8D FEED COMMON ICS POWER AVERAGER*
FIX lNVOLVES USE OF ISOLATION AMPLIFIERS* B&W BELIEVES, BASED ON INHOUSE DESIGN DRAWINGS, PROBLEM IS UNIQUF-
TO RANCHO SECO*
10 CFR 21 REPORT NOT ISSUED BY B8W
EOLLOW-UP:*
daw LETTER TO OWNERS RECOMPENDING SITE SPECIFIC CHFCK*
LICENSEE INITIATED INP0 NOTIFICATION NETWORK"
LICENSEE TO ISSUE 10 CFR 21 NOTIFICATION!
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[- RfACTORSCRAWSUMMARY.'
-
~ WEEK ENDING 04/05/B7, ,
!. PLANT SPECIFIC LATA
DATE' SITE' UN!i F0WER RFS CAUSE COMPLI- YTD YTD ' YTD,
' CAT 10NS- AB0VE BELOW TOTAL
'151 151
03/30/87 FRA!RIE ISLAND' 1 71 A P SONNEL: NO 1 0 1
03/31/57 BYRON- ' 2 17 A UNr'0dN ND 1 3 4
. 03/31/27 HARRIS:' ! 56 A EQUIP . N0 5 2 7E
-04/02/87 SUSQUEHANNA 1 -100 A EQUIP / ELECT NO. 1 0 1
04/02/87 CALLAWAY: 1 1A EQUIP / ELECT NO 0 1 1-
04/03/87 HARRIS 1 75 M FERSONNEL' NDL 6 -2 B
04/03/07 MONTICELLO 1 100 a EQUIP NO~ 3 0- 3,
' 04/04/87 INDIAN POINT 3 -!! A EQUIP NO '2 1 '3-.04/04/87 SURRY- 2 !! A UNKNOWN' NO 0 2 2,
E04/04/07.DIABLOCANYON. 2- 12 A . UNYN7aN ND 1 2 3
.04/04/07 POINT BEACH 1| ~.0 M PERSONNEL ND 0 1- 1
04/05/87 V0GTLE -1- 25 A ' - EQUIP /TURB!hE ND 1 ~6 7
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.I I . COMPARISON OF WEEKLY STATISTICS WITH INDUSTRY AVERAGES+
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SCRAMS FOR WEEK ENDING-.
04/05/87
SCRAM CAUSE POWER NUMBER 1987 19G6 1985OF WEEKLY WEEKLY WEEKLY j
SCRAMS (5) AVERAGE AVERAGE AVERAGEYTD (3)(4) (8) (9)
** POWER >15%EDUIP. RELATED >15% 4 3.6 4.3 5.4PERS. RELATED(6) >15% 2 1.6' 1.8 2.0OTHER(7)' >15% 1 1.0 0.4 0.6** Subtotal **
7 6.2 6.5 8.0 ||
** POWER <15%EOUIP. RELATED <15% 2 1.1 1.4 1.3PERS. RELATED <15% 1 1.0 0.8 0.9
4OTHER <15% 2 0.4 0.2 0.2 1** Subtotal 4* {
5 2.5 2.4 2.4 !-4** Total ***
|12 8.7 8.9 10.4 i
MANUAL VS AUTO SCRAMSl
TYPE NUMBER 1987 1986 1985OF WEEKLY WEEKL.Y WEEKLY
SCRAMS AVERAGE AVERAGE AVERAGEYTD
MANUAL SCRAMS 2 1.3 1.0 1.0AUTOMATIC SCRAMS 10 7.4 7.9 9.4
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