ML17341B213

Summary of 820505 Operating Reactor Events Meeting.List of Attendees,Events Discussed & Significant Elements of Events Encl

ML17341B213
Person / Time
Site:	Turkey Point
Issue date:	05/14/1982
From:	Lainas G Office of Nuclear Reactor Regulation
To:	Eisenhut D Office of Nuclear Reactor Regulation
Shared Package
ML17341B211	List: ML17341B210 ML17341B212 ML17341B213
References
NUDOCS 8206100295
Download: ML17341B213 (8)

Text

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G ~ CD Lainas, Assistant Director'or Safety Assessment Division of Limnsing MEMORANDUM FOR:

Darrel 1 G. Ei senhut, Director Division of Licensing MAY 2 0 1982 GRQK NEVIS

SUMMARY

OF THE OPERATING REACTOR EVENTS MEETING ON MAY 5, 1 982 On May 5~ 1982.

an Operating Reactor Event meeting was held to brief the Office Director, the Division Directors'nd their represen-tatives on events which occurred since the last meeting.

The list of meeting attendees is included as Attachment 1

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The events discussed and the significant elements of these events are presented in Attachment 2 ~

In addition to these

events, the 'assignment of follow-up review responsibility was discussed.

The assignments made during this meeting an4 the status of previous assignments are presented in Attachment '3.

The next Operating Reactor Events meeting is scheduled for May 19, 1982

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G. C.

La inas

. Assistant Director for Safety Assessment Division of Licensing Attac hments:

As stated cc w/attachments:

Meeting Attendees DRAB Members H ~

Den.on E ~

Case R. Mattson R; Vollmer S.

Hanauer T. Murley C. Michelson C. Heltemes T. Nova k G ~ Lainas RE Tedesco T. Ippol ito G. Hotahan HE Thompson M. Frnst W.

inners LE Shao I 8206100295 82052b PDR *ADOCK 05000250 P

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Attachment 1

MEETING ATTENDEES H. Denton M. Conner M. Caruso T. Speis V. Rooney J. Carter M. Grotenhuis D. Muller R.

Wessman E.

Imbro B. Mills A. Pattou,

!E C. Gould, IE F. Witt F. Schroeder T.

Novak M. Fairtile R. Ramirez G. Holahan G. Lainas C. Nelson T. Ippolito

OPERATING REACTORS EVENT BRIEFING MAY 5, 1982 0

HATCH 1 UNPLANNED SHUTDOWN DUE TO CONDUCTIVITY INCREASEi APRIL 2Q, 1982 (NFAIRTILE)

PLANT SHUTDOWN AFTER TECHNICAL SPECIFICATION LIMIT ON CONDUCTIVITY EXCEEDED (10~MHO/CM)

COOLANT PH DROPPED TO fs0i CHLORIDES REACH HIGH OF 2,0 QPM 35 OUT OF 124 LOCAL POWER RANGE MONITOR CASINGS FAILED CAUSE OF EVENT THOUGHT TO Bf RES IN LOSS FROM DEMINERALIZERS INTO RCS CHLORIDES REDUCED TO 1 PPM LICENSEE PREPARING RECOVERY PLAN AND RESPONSES TO STAFF CONCERNS OVER IMPACT OF OFF"NORMAL CHEMISTRY PM AND REGION I I WILL MEET WITH LICENSEE PRIOR TO RE-START VERflONT YANKEE, APRIL 24, 1982 -

REACTOR SCRAM NITH HPCI/RCIC ACTUATION (YROONEY)

FEEDWATER REGULATOR VALVE CONTROL MALFUNCTIONS FEEDWATER PUMPS w

TRIP ON HIGH WATER LEVEL AUTO START OF STANDBY PUMP AND MANUAL RESTART OF TRIPPED FEEDWATER PUMPS INITIATED ON LOW LEVEL FEEDWATER PUMPS TRIP AGAIN ON HIGH WATER LEVEL AUTOMATI C REACTOR S CRAM ON LOW WATER LEVEL, AUTOMATIC HPCI/RCIC AND D/G START AND MSIV CLOSURE ON LOW-LOW~

WATER LEVEL HPCI/RCIC TRIP ON HIGH WATER LEVEL MSIV S MANUALLY REOPENED REACTOR WATER LEVEL NORMAL'RESSURE AND TEMPERATURE STABILIZED ECCS INITIATION NOT NOTICED BY 'OPERATORS FOR 2

HOURS

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I TURKEY POINT 3 AND 4 - TRIP OF BOTH UNITS RESULTING IN BLACKOUT OF 700,000 CUSTOMERS (NGROTENHUIS)

AT il50 PM GROUND FAULT ON UNIT 3 CONDENSATE PUMP RESULTED IN LOSS OF FW UNIT 3 REACTOR TRIP ON LOW SG LEVEL UNIT 3 STARTUP TRANSFORMER OUT-OF"SERVI CE FOR MAINTENANCE>

CAUSING DG START SHEDDING OF NON-VITAL LOADS CAUSED A LOSS OF POWER TO A

UNIT 9 ROD POSITION INDICATION PANEL WHI CH WAS USING A NON-VITAL ALTERNATE POWER SOURCE BECAUSE OF A PREVIOUS INVERTER FAILURE TURBINE RUNBACK CAUSED BY DROPPED ROD SIGNAL RESULTED IN A REACTOR TR I P AT f:58 PM GR/P PERggRBATION RESULTED JN TWQ FOSSIL UNITS TRIPPING AND A ZU TO 5U MINUTE BL'ACKOUT /00,000 CUSTOMERS

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SONGS-2, RCS LEAKAGE APRIL 28, 1982 (H ROOD)

LEAKS DETECTED IN SI CHECK VALVES AND RC DRAIN TANK VALVES DURING POST CORE HOT FUNCTIONAL TESTS 3>C> GPM LEAK IN ONE Sl CHECK VALVEr ESTIMATED 20 GPM LEAK IN THE SECOND SI CHECK VALVE PLANT SHUTDOWN IN ACCORDANCE WITH EMERGENCY OPERATIONS PROCEDURE FOR RCS LEAKAGE

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ST, LUCIE 1 PRESSURIZER SPRAY CONTROL VALVE LEAK, APRIL 24~

1982 (CNE LSON) 20 GPM LEAK TO CONTAINMENT DETECTED AT 2l15 PM LEAK ISOLATED BY MANUALLY CLOSING VALVES AT 3l30 PM PLANT OPERATING WITH FULL CAPACITY REDUNDANT SPRAY LINE WILL INSPECT AND REPAIR DURING OUTAGE SCHEDULED FOR NAY 5

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