ML20215C872

Summary of Operating Reactors Events Meeting 87-10 on 870406 Re Events Which Occurred Since 870330 Meeting.List of Attendees,Events Discussed & Significant Elements of Events & Summary of Reactor Scrams & Significant Events Encl

ML20215C872
Person / Time
Site:	Monticello, Calvert Cliffs, Peach Bottom, Oconee, Indian Point, Harris, Point Beach, Byron, Susquehanna, Prairie Island, Surry, Diablo Canyon, Vogtle, Rancho Seco, 05000000
Issue date:	06/08/1987
From:	Lanning W Office of Nuclear Reactor Regulation
To:	Rossi C Office of Nuclear Reactor Regulation
References
OREM-87-010, OREM-87-10, NUDOCS 8706180277
Download: ML20215C872 (12)

Text

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L Jt!N 8 1987

~ MEMORANDUM FOR: . Charles E. Rossi, Director Division' of Operational Events Assessment __

FROM: Wayne Lanning, Acting Chief Events Assessment Branch-Division of Operational Events Assessment ,{

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SUBJECT:

- THE OPERATING REACTORS EVENTS MEETING APRIL'6, 1987 - MEETING 87-10 -

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~ l Onl April 6,1987, an Operating Reactors Events meeting (87-10) was ' held to brief senior managers. from NRR, RES, AE00 and Regional Offices.on ev0nts ]

which occurred since our last meeting on March 30,: 1987. - The list of. attendees .

is included as Enclosure 1.

-The events d'iscussed-and the significant elements of these" events are presented )

in Enclosure 2. Enclosure 3 provides a summary of reactor scrams and j

t -. "significant events" that will be input to NRC's performance indicator program.

Original Signed by

+. Wayne D, Lanning

.e Wayne Lanning, Acting Chief

. Events Ass'essment Branch '

Division of Operational Events Assessment *

Enclosures:

As stated 50 2G3- 50 ~20 l ,

cc w/ Encl : , ~} -

See Next Page 5@~26 N 50-26 IG dL7

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e. A Charles E. Rossi cc: T. Murley- H. Pastis J. Sniezek .B. Youngblood R. Starostecki S. McNeil-J. Taylor R. Capra E. Jordan G. Kalman E.'Beckjord' G. Knighton W. Russell, Reg..I-

-J. Nelson Grace. Reg. II i B. Davis, Reg. III R. D. Martin, Reg. IV J. B. Martin, Reg. V W. Kane, Reg. I-L. Reyes, Reg. II 1 C. Norelius, Reg. III E. Johnson, Reg. IV-D. Kirsch, Reg. V-S; Varga-

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F. Congel H. Miller E. Weiss S. Black T. Martin,-EDO F. Miraglia E. Merschoff R. Hernan l

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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 l-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 l T. Gwynn OCM. F. Schroeder NRR R. Bernero- 'NRR W.'Swenson NRR

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ENCLOSURE 2 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

- APPIL 6, 1987 OCOMEE 1, 2 AND 3 - FOULING OF LOW PRESSURE, SEPVICE WATER, LOW PPFSSllPF INJECTION AND REACTOR BUILDING COOLING UNITS MAPCP 3), 1987 - (H, PASTIS, NRR)

PROBLEM: FOULING OF THE LOW PRESSURE INJECTION (LPI) AND REACTOR ,

BillLDING COOLING UNIT (RPCU) HEAT EXCHANGER LIMITS OPERATING POWEP CAUSE: LAKE SEDIMENT  :

i 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 RATING UNIT 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 l

1

- APRIL 6, 1987 CALVERT CLIFFS 3 - IINIT SHUTDOWN DUE TO FNV!PONMENTAL OttALIFICATION PROBLEMS APRIL 1, 1987 - (S. A MCNEIL, NRR)

PROBLEM: LICENSEE SHUTDOWN UNIT 1 TO INVESTIGATE ADEQUACY OF ENVIRONMENTAL CUAllFICATION OF MOTOP OPERATED VALVES AND S0LENDID 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 NOT ENVIRONMENTALLY QUALIFIED TO BE ENVIRONMENTALLY QUALIFIED, THE METHOD OF TAPING, THE TYPE OF TAPE AND THE LOCATION MUST BE CONSIDERED APRIL 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 VALVES

- 13 0F 40 MOTOR OPERATED VALVES INSPECTED, Al.L SPLICES WERE ACCEPTABLE. ENVIRONMENTAL QUALIFICATION OF SillCON INSULATED INSTPllMENTATION WIPING ON 5 MOTOR OPERATED VALVES WAF  !

DUESTIONABLE, l

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. CALVFRT-CLIFFS 1 (CON'T)

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 ,

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 QUALIFIED ADDPESS 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 j

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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)

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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SUMMARY

~ 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 7 E

-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 E

04/04/07.DIABLOCANYON. 2- 12 A . UNYN7aN ND 1 2 3

.04/04/07 POINT BEACH 1l ~.0 M PERSONNEL ND 0 1- 1 04/05/87 V0GTLE 25 A ' - EQUIP /TURB!hE ND 1 ~6 7

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.I I . COMPARISON OF WEEKLY STATISTICS WITH INDUSTRY AVERAGES

-. SCRAMS FOR WEEK ENDING 04/05/87 SCRAM CAUSE POWER NUMBER 1987 19G6 1985 OF WEEKLY WEEKLY WEEKLY j SCRAMS (5) AVERAGE AVERAGE AVERAGE YTD (3)(4) (8) (9)

• • POWER >15%

EDUIP. RELATED >15% 4 3.6 4.3 5.4 PERS. RELATED(6) >15% 2 1.6' 1.8 2.0 OTHER(7)' >15% 1 1.0 0.4 0.6

• • Subtotal **

7 6.2 6.5 8.0 l l

• • POWER <15%

EOUIP. RELATED <15% 2 1.1 1.4 1.3 PERS. RELATED <15% 1 1.0 0.8 0.9 4 OTHER <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 li MANUAL VS AUTO SCRAMS l

TYPE NUMBER 1987 1986 1985 OF WEEKLY WEEKL.Y WEEKLY SCRAMS AVERAGE AVERAGE AVERAGE YTD MANUAL SCRAMS 2 1.3 1.0 1.0 AUTOMATIC SCRAMS 10 7.4 7.9 9.4 I

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