ML20213F940

Package,Including Morning Rept Re Plant 861209 Rupture of Suction Line on Main Feedwater Unit a & Drawings

ML20213F940
Person / Time
Site:	Surry
Issue date:	05/18/1987
From:	NRC
To:
Shared Package
ML20213F879	List: IA-87-217, Package,Including Morning Rept Re Plant 861209 Rupture of Suction Line on Main Feedwater Unit a & Drawings ML20213F877 ML20213F940
References
FOIA-87-217 NUDOCS 8705180048
Download: ML20213F940 (10)

Text

_ _ _ _ _ _ . _ _ _ _ . _ _ _ _ _ _ _ _

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Repcrtable Event Number 07140 h g gll;h[f k "

' Facility :_ SURRY - Date Nat i f i ed ,4,,,,,1?/ 09 / 86 Unit : e. rime Notified : 1E:04 l Region : 2 Date of Event -

12/O UGe Vendor : WES6, WEST Time of Event : 14: 40 Operations, Officer : NACKINtlON Cl assi f i cation : Alert NRC Natititd by : St.NDE R Category 1 : SCRAM Rad Releua : No Category 2 : ESF Actuation Cauw : llechanical Failure Category .I.  :

Component : MPW SUCTION RUPTUPE C a t.e a ar y 4 :

RTR POWER PRIOR TO THE EVENT 100%.RfR PO'& ' AFTER THE EVEN1 02. (4 ! NCi t GUCTION LINE Otl NFW "A" UNIT HUPTURED. TWEURL4ivt es14 IG4LLZ d4JUHED. M Phu-Lti -

HHVL h1Noh INauh166. LEAK tlAE BEEN LOMPLETFLv ISOLATED. 4 RCP'S SUF 'i *LY I NG FURCED CIRCutATION. SECONDARY Pi'RV'3 UE(NG USED 10 COOLDOWN fHE i'L AtlT . ~

NOTOR-DRIVElf AUX FEED WAiER FUMP SUPPL.VING UAlt.R TO THE STEAM GEliERA TOR .

D i HER MU TDR- DRI VEf 4 PUMP AND TURDINL DRIVEN PUMP AVAILABLE AND IN GTANDay. NO LCnUME FROM THE iRIMARY S Y G I Ef1. PRESOURIZER LEVEL AT 25%. PLANI ]3 Si ALi L RI INPORMED BY L1CEt P-3EE. R2DO (DLAKE > , EO (JORDAN) , s.J . ROSENTHAL),NRR (NF0kt IED PRUJECT NAMAGE:R Ili CENTCR, FEMA (RENEE L11 TON) , EPA (HARRY CALLEY), DOE WHYLib MCDONALD) AND llHSiGhLE SCilMIDT) flOTIFIED. *** UPDAfE *** LICEN9EE REPORTED

,, TH4T OttE. CONIROL fiOb SlUCK(D1D NOT GET RUD DOTTOM LIGHT). OPERATORS EMERGENCY RORAfED PER PROCEDURES.*** UPDATE [625*** ALERT TERMINATED , RI WCLL BE INFORMED, R2DO (LPRIbHT) . EUtJURDAN>, h>. ROSENfHAL), FEMA (AUSTIN), DOE (W.

ROBINGOPO, HHGiR. G P OVE '> AND EPA (HAnRY CALLEY) WERE NOTIFIED OF THcE OLEP r UEIN5 T EF l11 N ATED .

an.UFDA1Eiv340)+** LSTABL[SHED GHR 91 0345. RCS TEMP 535 DEGREES, PRESS s10#.

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MORNING REPORT - REGION dl DATE: DECEMBER 11, 1986

(

G L ICE NSE E /F AC I LIT V NOTIFICATION / SUBJECT DESCRIPTION OF ITEM OR EVENT i SURRV I, 2 HQ DUTY OFFICER AND ON 12/10, AT 5:30 P.M. (EST) UNIT 1 COMMENCED SHUTOOWN FOR INSPECTION AND (

-DNS2 50-280' RE S IDE NT INSPECTOR EVALUATION OF THE CONDITION OF THE CONDENSATE AND FEED WATER SYSTEM IK LIGMT OF*THE- UNIT 2 RUPTURE. THE UNIT 2 FEEDWATER PIPE RUPTURE 'WHICH 50-281 UPDATE OF PIPE FAILURE AND PERSONNEL INJURY REhdLTED IN E IGHT INJURIES ON DECEMBER 9. HAS NOW CAUSED TWO FATALITIES. (

REN: 07140 ON DECEMBER 10 THE NRC SITE TE AM WAS OFFICIALLY IMPLEMENTED AS AN. AUGMENIED INSPECTION TEAM (AIT) AND A TEAM OF NRC PERSUNNEL AND CONTRACTORS, WHO ARE E XPERTS .GM PIPE BREAKS, W ILL-BE ' INVEST IGAT ING THE BRE AK. A CONTRIBUTING $

CAUSE OF To:F BREAK APPEARS TO BE EROSION OF THE PIPE 00E To THE "J* N0ZZLE PHENOMENON WHERE EROSION OCCURS ON THE OUTSIDE EDGE OF THE PIPE BEND.

ITEMS BE ING INVEST IGATED INCLUDE CONDIT ION OF THE FEEDWATER CHECK V ALfES, (

EROSION OF THE PIPING, AND THE STATUS Of IDE FEEDWATER PUMP AI. JME IIME.

A l{ AND R{SEENJ _ INSPECIOR FOLLOWUP. 4 DUT Y OFF ICER OM 12/10 AT 5:03 P.M. WITH UNIT 4 AT 100% POWER, WHILE PERFORMING AH TURKEY POINI 4 DN: 50-2f! INADVERTENT AUXILIARY OPERABILIT Y TEST OF THE 'C' AUX ILIARY FEED WATER (AFW) PUMP DN TRAIN #2, THE TRAIN #1 'A' AFW PUMP WAS STARTED DUE TO PERSONNEL ERROR. THE 'C' 6 FEED WATER ACTUATION IT WAS RE AllGNED

,- R E tt 07161 AFW PUMP IS A SWING PUMP NORMALLY ALIGNED To TRAIN #1.

TO TRAIN #2 TO PROVIDE TWO TRAIN SEPARATION DURING 'B' AFW PUMP MAINTENANCE.

ok TO PERFORM THE OPERABILITY TEST THE OPERATOR MUST OPEN THE STEAM SUPPLY f

VALVE FOR TRAIN #2, HE MISREAD THE PROCEDURE AND OPENED THE STEAM SUPPLY VALVE FOR TRAIN #1. TRAIN #1 FUNCTIONED PROPERLY AND WAS PLACED BACK INTO 4 THE STANDBY CONDITION. TRAIN #2 WAS THEN SATISF ACTORY TESTEU. ROUTINE FOLLOWUP.

4 GENERAL THE DEPUT Y REGIONAL ADMINISTRATOR, THE DEPUTY DIRECTOR OF THE DIVISION OF REACTOR SAFET Y, AND A DIV ISION OF RE ACTOR PROJECTS (

REPRESENTATIVES, ARE AT THE MCGUIRE NUCLEAR PLANT 70 MEET WITH MANAGEMENT REPRESENTATIVES OF SECT ION CHEIF. ACCOMP ANIED 8 Y NRR THE Dure POWER COMPANY TO DISCUSS IMPROVEMENTS IN DUKE'S MANAGEMENT PROGRAM WHICH THEY HAVE DES GNED TO ADD -

AREA UF OPERAT IONS AS EXPNESSED IN THE TWO PREVIOUS SALPS. 4 THE DIREC[0R. DIVISION OF REACTOR PROJECTS AND A DIVISION OF RE ACTOR PROJECTS SECTION CHIEF, ARE AT THE V0GTLE NUCLEAR PLANT 10 ATTEND A MEETING WITH NRR ANO GEORGIA POWER COMPANY REPRESENT ATIVES RELAT ING TO THE ST ATUS OF LICENSING 4OF UN OF HIS ST AFF, ARE MEETING WITH TVA SITE DIRECTOR AND SITE LICENSING STAFF TO DISCUSS THE DIRECTOR. TVA PROJECTS AND A MEMBEN INTERF ACE FUNCT IONS FOR THE SEQUOYAH NUCLEAR PLANT. 4 THE DIR.ECTOR, DIV IS ION OF REACTOR SAFET Y AND A MEMBER OF HIS ST AFF ARE AT THE WATTS BAR NUCLE AR PLANT TO REVIEW WELDIN dEINSPECil0N ACTIVITIES.

4

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8 MORNING REPORT - REGION 11 DATE: DECEMBER 12, 1986

(

L ICEOSE E /F AC Il l T Y NOTIFICATION / SUBJECT DESCRIPTION OF ITEM OR EVENT ONEL 1, 2. 3 SENIOR RESIDENT INSPECTOR DN 12/11. TWO MINOR SEISMIC EVENTS OCCURRED IN THE VICINIT Y OF OCONEE. 4 DNS: 50-269 SEISMIC EVENTS ONE EVENT UCCURRED AT 9:05 A.M. AND MEASURED 2.3 ON THE RICHTER SCALE; 50-270 THE OTHER EVENT OCCURRED AT 9:07 A.M. AND MEASURED 2.5 UN THE RICHTEN 50-287 bg[ d [#b SCALE. THE EVENTS WERE NOT FELT AT OCONEE JND WERE NOT RECORDED ON 4 SEISHIC INSTRUMENTATION. THE EVENTS WERE DE TECTED BY THE UNIVERSITY OF SOUTH CAROLINA. THE EPICENTER WAS PLACED AT SALEM, WHICH IS APPROKIMATELY 17 MILES NORTH OF THE PLANT. INSPECTIONS FOR DAMAGE HAVE BEEN MADE AT 4 THE KE0 WEE AND JOCASSEE FACILITIES. Nu DAMAGE WAS DETECTED. FOR INFORMATION ONLY.

4 SURRY 1.-2 RFSluENT INSPECTOR ON 12/11, VEPCO CONDHCTED A TOUR FOR REPORTERS OF THE SURRY $1TE DNS: 50-2u0 PIPE RUPTURE UPDATE INCLUDING THE AREAS INWOLVED WITH THE 12/9 UNIT 2 PIPE BREAK. THE

'50-231- INV ES T I GAT ION INTO THE CAUSE OF THE EVENT CONTINUES AND UNIT i RLMAINS 4

-

• SHUT DOWN TO INSPECT SIMILAR PIPING. TODAY THE UNIT 2 FEED PUMP M# 'N DISCHARGE CHECK VALVE, DOWNSTREAM OF THE BREAK, 15 BEING OPENE0 AND

, , [h w o, a . INSPECTED. UNIT I INSPECTIONS ARE LXPECTED TO T AKE PLACE THROUGH MEXT WEEK. THE AIT REMAINS ON SITE AND THE NRC PIPE BREAK SPEC I AL IST

'E TE AM HAS ARRIVED ON SITE AND HAS BEEN BRIEFED ON THE EVENT. A li AND

• RESIDENT NSPECTOR FQLLOWUP.

O ON/ l /d k =

wt A oJ d4 GE NE R A L

. sb 00 UECEMBER 11, 1986, AN NRC NEGION 11 INSPECTOR. TOM GIBBONS, DIED IN A INGL R ACCIDE ILE E ROUTE FROM THE V0GTLE e

F AC IL IT Y TO HIS MOTEL. HE WAS FLOWN TO THE MEulCAL COLLEGE AT AUGUSTA, GE O R GI A , BUT WAS PRONUUNCEO DEAD ON AHR IV AL. THE $

GEO R GI A ST ATE OFF IC I ALS AND THE GEORGI A POWER COMPANY MADE POSITIVE IDENTIFICATION OF HIS BODY AND INFORMED THE NRC AT 9:43 P.M. (EST) 0F THE SAF.E DATE.

THE DIRECTOR. DiviS10N OF REACTOR PROJECTS AND A SECTION CHIEF ARE ACCO.*;PANYlhG COMMISSIONER CARR GN A TOUR OF THE VUGILE O NUCLEAR POWER PLANT.

. O

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MGkN!hG REPORT - REGION 11 2 *'

L ATE : DECEMBER 15, 1986 hol lF IC AT I LP./ S uPJ: l I OESChlPTION GR ITEM ON EVENT J ICI '.tEf /F AC IL li t

&C/t.aTCn ; p- buit LetIrt* A r.L ON LE CL PbtR 12, 1966, AT 9:00 A.M. TEST) UNIT 2 ENTERt'O AN LCO 10 BC IN HOT 1Nui-

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• T /uri t i !bu T E . wt. cGwk WITHIt! 12 HOURS WHEh A TORUS TO LRTWELL VACUUM BREAsER CouLO NOT BL CLOSED. g

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ibE~V ACUum PRE AFER COULD h0T BE EEP AIRED THE WHILE AT POWER SO WAS TbE uhli W AS ShuTDOWh shc EESTAhi Vacuum tREAKER REPAIRED, ALohG F f f. : 97th! AI AtPRONIMATELY 4:00 P.M. THE SAME DAY.

WITH O T Hf R ITEPT, AND UNIT 2 WAS FACK Ch LINE AT APPROMINATELY 3:30 P.M. DECEM8ER THE ikOLLLM WITH THE VACUUM bpEANER WAS IN THE AIR CYLINDER WHICH HAS h0W g 14.

PEEh RE& LAC [0. AS OF 9:00 A.M. CECEMBER IS, UNIT 2 WAE AT APPR011MATELY 30 l I

PERCLNT POWEF. RESILEhT INSPECTOR FOLL0buP.

FEED PUMP DISCHARGE CHECn VALVf, 00hNSTREAM OF THE 1, ;' * E UNII 2 'A'

t. REAM, FEWEALED A MISS!hG HINGE P!h Ar.D VALVE SEAT DAMA6E. ,

cES E J/Lb* r v

• f;t t i Pisf R 9 PIPE a

.hs: ' 50 .'PC ~ F IF t es:F TOP t INSbt ATIch MAS rein Rf MOVED FROM UNIT 1 CCh0LNhaiE AMC ffr0 WATER SYSTEM.PIPIhG *

' $s-:- e 1 Tb ?LPFG41 ULinAt0%IC TE' TING tuin. UT OF THE SIMILAR UNIT 3 ELHOW, UPSIREAM LF InE *A" > AIM FEEDWATEk PUMPS NAS REVEALED A MINIMUM WALL THICnhESS OF 0 160 g thChES. T HI*FTilNuN EDLE ALLOWAILE VALUE IS 9 560 thCHES FOR THIS 0 500 IhCH hOrthAL THICnNf55 PIFL. TML LICfhSEf IS CONIINulNG WITH uLIPA50h!C TESTIhG AND I NV t Sil s A T IC',. 10uAT VCFC0 IS CONOUCi!NL A TOUR FON STATE AND LOCAL OFFICIALS Of g inE AURHY t!iE If,CLUDING AREAS INVOLVED WITe TNE PIFE E$REAK. AIT AND RESIDENT thSPEC10R FOLLEhuP.

KITH HOTH uh!TS AT 1u01 POWER, O p. 12/12/P6 AT S:06 P.M., THE C04TAlhMENT AND g

~f t Irf - P.M., THE I PL s ivani 1 6 . f r. I * .' ult LONTROL ROCM VthTILATION SYSTEMS ISOLATED AND ON 12/14/*6 AT 3:03 a fs; ' C -; '. I c $t Afiui1IoA CCNTHOL ROOM VENTILATION SYSTEM ISOLAffD. BOTH ISOLATION EVENTS WERE DUE TO g ri*: CTid' 6735$ SPURIOUS SPINES ON THC CONTAIhMENT PARTICULATE RADIAT10h MONITOR CHANNEL 11..

THE M0h! TOR HAS BELN DECLARED OUT OF SERVICE AND IS AWAIT!hG REPAIR. CONTROL 6006 VENTILATION SYSTEM WAS LEFT Ik kECIRCULATION MODE UNTIL THE CHANhEL TRIP g CAN LE JuMPEREO OUT OR THf MONITOR REPAIRED. R0uilhf FOLLOWUP.

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. SURRY UNIT 2 -fAlllRE OF MAIN FFFDWATER PIE c c DECEN ER 9, 1986 (C. PATEL, NRR)

PROBLEM: AN 18-INCH MAIN FEEDWATER PIE ON TE SUCTION SIDE OF

. %Y FEEDWATER PtfP "A" FAILED CATASTROPHICALLY CAUSE:

PRELIMINARY Iff0RMATION ATTRIBUTES CAlSE OF PIPING FAILURE TO EROSION

, OF PIE WALL AND A PRESSUE TRANSIENT WICH DVERLOADED lE THItWED WALLSECTION i SIGNIFICANCE:

i 6 WORKERS INJURED (2 DIED, 4 IN CRITICAL OR SERIOUS CONDITION)

DISCUSSION:

l AT 2:20 P.M. ON 12/9/86, TE REACIOR WAS OPERATING AT 300% POWER l MAIN STEAM ISOLATION VALVE (MSIV) "C" CLOSED INADVERTENTLY "A" AND "B" MISVs CLOSED l;

• REACTOR TRIPPED ON LOW LOW LEVEL. IN STEAM GENERATOR "C"

~

l AN 18" MAIN FEEDWATER PIE ON l}E SUCTION SIDE OF FEEDWATER PLPP "A" l

• FAILED CATASTROPHICALLY RELEASING STEAM TO TE TURBIE BUILDING OPERATORS 1URNED OFF ALL SE(DNDARY SIDE PLPFS, ISOLATED FEEDWATER ISOLATION VALVES APO OTER LIES GOING TO TE AFFECTED AREA l l TE LICENSEE DECLARED AN ALERI  !

STEAM GEERATOR LEVELS WERE PAINTAIED WITH AUXILIARY FEEDWATER AP0 ,

l

• STEAM WAS DlPPED TO AT10SPETE ,6AJ 4 h FIRE PROTECTION SYSTEM INITIATED AND DLPPED HALON AND q IN EERGENCY SWIT0iGEAR R0W AND CABLE SFEADING ROM l AT 2 A.M., TE RESIDUAL EAT RE?tNAL SYSTEM WAS PlTT IN SERVI & .

! LNIT REAOED COLD SIUIDOWN DURING TE PORNING OF 12/10/86 TE REGION DISPATCED AN AlXPENTED INSPECTION TEAM LICENSEE EXAMIED "A" FEEDWATER Plw DISCLRGE OECK VALVE AND FOUND DAMAGED INTERNALS TE LIGNSEE SHlIT DOWN LNIT 1 FOR EXAMINATION AND F0lND PIE THINNING IN SAE PIE FOLLOWUP:

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• LICENSEE 00hTit0 LNG IT'S EVALUATION OF 1RANSIENT AND PIE FAIL LICENSEE TO EXAMIE ADDITIONAL LNIT 1 PIPING AND BASED ON TEST , It' '

l RESULTS ESTABLISH A PLAN 0: ACTION l AIT CONTINUING INVESTIGATION OF EVENT IE T0 ISSLE b

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dT3 =

p( g

/  !.J o t T H , s 8

8

.. _ _ _ _ -. . J