ML20155A573

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Enforcement Conference Rept 50-289/86-06 on 880824.Major Areas Discussed:Significance of Concerns Re Environ Qualification of Emergency Fan Cooling Cable.Viewgraphs Encl
ML20155A573
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 09/20/1988
From: Durr J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20155A571 List:
References
50-289-86-06-EC, 50-289-86-6-EC, EA-88-182, NUDOCS 8810060011
Download: ML20155A573 (15)
v • d • e


See also: IR 05000289/1986006

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U.S. NUCLEAR REGULATORY COMMISSION

REGION I

Meeting No. EA 88-182

Docket No. 50-289

License No. OPR-50

Licensee: GPU Nuclear Corporation

Facility Name: TMI-1

Conference At: NRC Regien I, King of Prussia, Pennsylvania

Conference Date: August 24, 1988

Approved by: , j .pp_iff

. . Ourr,pCntef, Engineering Branch, DRS da e

Conference Summary:

Environmental Qualification (EQ) enforcement conference held to discuss the

significance of concerns about the environmental qualification of emergency

fan cooling cable.

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G810060011 880922

PDR ADOCK 03000289

0 PDC

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DETAILS

1. Conf 6 3nec Attendees

GPJ_ Nuclear Corporation

H. D. Hukill, Vice President and Direcer of TMI-1

R. Wilson, Technical Functions Vice President

J. Sullivan, Regulatory Affairs Director

L. Lanese, Safety Analysis Plant Control

J. Auger, PWR Licensing Engineer

R. McGoey, PWR Licensing Engineer

E. Pagan, Senior Engineer

D. Croneberger, Engineering Projects Director

J. Mancine111, EQ Manager

MC

W. Johnston, Acting Director DRS

J. Durr, Chief, Engineering Branch

R. Conte, Senior Resident TMI-1

C. Cowgill, Chief, RPS 1A

R. Anand, NRR, Plant Systems Branch

C. Li, NRR, Plant Systems Branch

P. Bissett, Operations Engineer

C. d erson, Chief, Plant Systems Section

R. Pao.i no, Sr. Reactor Engineer

2. Conference Scopo

The enforcement conference considered the folio,<ing potential EQ

violation:

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  • Emergency fan cooling cable (289/S6-06)

The scope of the discussions included: l

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  • Safety significance of the potential violation, number of

d0ficiencies and number of systems and corponents affected

  • Specific and underlying cause of each potential violation

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  • Actions taken or planned to correct the pn ential viola * ion to l

ensure overall compliance

  • A disaussion of the potential violation in light of the Modified

Enforcement Policy for EQ Require-ents, GLSS-07

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3. Licensee Presentation

The licensee presented their position on the EQ issues of concern. The  :

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licensee presentation is outlined in their handout which is provided as

Attachment A to this dccument.

4. Conclusion l

The NRC staff stated that the licensee input will be considered in I

assessing NRC handling of the potential enforcement item. The licensee

will be notified of appropriate enforcement actions in the future.

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ATTACHMENT h 2V

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NRC ENFORCEMENTCONFERENCE

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KING 0F PRUS$1A,PA

AUGUSTN,im l

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AGENDA

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l. INTRODUCTION R.J. McG0EY  :

h.kPAsIN

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il. BACKGROUND . .

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E.J. PAGAN l

Ill. CHRON0l.0GY OF EVENTS

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IV. SAFETYSIGNIFICANCE E.J. PAGAN

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V. CORRECTIVE ACTIONSTAKEN E.J. PAGAN

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l VI. AWARENESS PRIOR TO NOVEMBER 30,1985 E.J. PAGAN l

! Vll. SUMMARY E.J. PAGAN l

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EMERGENCY FAN COOLING UNITS

MOTOR JUMPER LEADS

'

BACKGROUND

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!  !

' PLANT STATUS - COLD SHUTDOWN FOR EDDY CURENT TESTING,

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! ' EQ SECTION CONDUCTING A"00MMONITEM"REVERIFICATION

i INSPECTION,

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' APRll17,1986,3 PAIRS OF M0 TOR JUMPER LEADS H' LONG,

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! EACH? WERE IDENTIFIED AS BEING OF A TYPE NOT ON OU i

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MASTER LIST. (SEE FIG,1? l

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' JUMPER LEAD WIRES ASSOCIATED WITH REACTOR BUILDING

EMERGENCY FAN 000 LING UNIT MOTORS AH-E-1 A,18,10,

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I ' FUNCTIONOFFANCOOLINGUNITS-TOREMOVEHEATFROM

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THE REACTOR BUILDING IN THE EVENT OF A LOCA OR HELB TO

! REDUCE THE PRESSURE AND THUS THE DRIVING FORCE FOR

! BUILDING LEAKAGE.

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FIGURE 1

. EMERGENCY FAN COOLING UNIT

MOTOR JUMPER LEAD CONFIGURATION

j--TO MAKE TERMINAl. CONNECTCNS REMCNE

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/ TO THESE CAP SCREWS AND SLIDE COVER

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OUTER CASNG Cf FAN,

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6 MOTCA LEAD TERMINALS l 6 THO.

6 ACCdSSCRY LEAD TERMNAL5 30 24 THQ'7

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SECTK)NAL VIEW SHOWING

, MOTOR TERMNALS .

. LEGEND

e SPLICE

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MOTORTERMINALBOX  !

h MOTORJUMPERLEAD

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!  !!!!!!'!!!I FIELD CABLE

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EMERGENCY FAN COOLING UNITS

MOTOR JUMPER LEADS

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CHRON0 LOGY OF EVENTS

<  :

! april 17,1986(THUR$ DAY ll: GPUN DISCOVERS DISCREPANT  :

MOTOR JUMPER t.EADS, l

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APRIL 18,1986(FRIDAY?: SITEMEETING WITH NRC TO DISCUSS

EQ COMMONITEM REVERIFICATION

! PROGRAM. l

NRC GIVEN HOTIFICATION OF GPUN

DISCOVERY OF DISCREPANT MOTOR

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j JUMPER LEADS.

' APRll21,1986 ; MONDAY?: INFORMALTELEPHONE CALL TO NRC

TO FURTHER DISCUSS DISCOVERY OF

j MOTOR JUMPER LEADS.

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' APRIL 22,1986LTUESDAY?: OPERABillTY DETERMINAT10N NOT

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VERIFIED. GPUN CONSERVATIVELY

j CONSIDERED MOTOR JUMPER LEADS

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l IN0PERABLE,NEED TO REPORT TO

NRC, AND REPLACED LEADS ON 20F

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l, 3M0 TOR $.

' APRll 23,1986 (WEDNESD AY?: TMI-1 WiNT ORITIC AL

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' APRll24,1986(THURSDAY?: MOTOR JUMPER LEADSON THIRD

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MOTOR WERE REPLACED,

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. EMERGENCY FAN 000 LING VNITS

WOTOR JVMPER LEADS

CHRONOLOGY OF EVENTS

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APRll25,1986: COMPLETED OPERABILITY

DETERMINATION. CONCLUDED

DISOREPANT MOTOR LEADSCAPABLE

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0F FUNCT10NING.

j APRll25,1986: GPUN LETTER TO NRC DOCUMENTING

MINUTES OF 4/18l86 EQ MEETING.

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LETTERIDENTIFIES M0 TOR JVMPER

! LEAD CONCERN AND STATVSOF '

I ACTIONS.

' APRIL 26,1986: TMI-1 AT100% POWER. l

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MAY1,1986: INDEPENDENT GPUN TECHNICAL

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! REVIEWER COMPLETED Hl$ REVIEW 0F

OPERABILITY DETERMINATION AND

! 00NCLUDED'IT WAS SATISFACTORY.

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l MAY16,1986: GPUN NOTIFIED NRCVIA TELEPHONE

) THAT EQ EVALUATION 0F"AS FOUND" '

MOTOR JUMPER LEADSCONCLUDED

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l LEADSWERE CAPABLE OF

i FUNCTIONINGIN A HARSH

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ENVIROMMENT.

' MAY 16,1988: INSPECTION PERIOD FORINSPECTION

i REPORT 86-06 ENDED. REPORT

IDENTIFIED CONCERMWITH M0 TOR

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! JVMPER LEAD OPERABILITY LOPEN

! ITEM B6-06-00.

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EMERGENCY FAN COOLING UNITS l

MOTOR JUMPER LEADS

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CHRONOLOGY OF EVENTS i

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' MAY 21,1986: GPUN CONSERVATIVELY SUBMITTED l

LER 86-009-00, i

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JULY 7-9,1986: NRCINSPECTOR REVIEWED

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DISCREPANT MOTOR JUMPER LEAD

I OPERABillTYDETERMINATION AT

EXIT,NO FINDINGSWERE REPORTED l

BYINSPECTOR WITH RESPECTTO THE

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OPERABILITY DETERMINATION. j

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AUGUST 1,1986: INSPECTION PERIOD FORINSPECTION l

REPORT 86-10 ENDED. OPENITEM l

jl 86-06-07 LEFT OPEN ONEITEM NOT

l RELATED TO THE MOTOR JUMPER

I LEAD ISSUE. l

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JULY 28,1988: GPUN RECEIVES NOTIFICATION OF l

) ENFORCEMENT CONFERENCE ON l

MOTOR JUMPER LEADS  ;

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! EMERGENCY FAN COOLING UNITS

MOTOR JUMPER LEADS  :

SAFETY SIGNIFICANCE  :

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EQUIPMENT FUNCTION -T0 REMOVE HEAT FROM THE

i REACTOR BUILDING IN THE EVENT OF A LOCA OR HELB TO

j REDUCE THE PRES $URE AND THUS THE DRIVING FORCE FOR

! BUILDING LEAKAGE.  :

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EQUIPMENT NEEDED -TECH SPECS REQUIRE 20F 3

EMERGENCY COOLING UNITS TO BE OPERABLE.

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) OPERABILITY OF COOLING UNITS - OPERABILITY  :

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l DETERMINATION CONCLUDED "AS FOUND" JUMPER LEAD

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WIRES WOULD FUNCTION IN HARSH ENVIRONMENT.,

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BA$l$ OF OPERABillTY DETERMiHATION - ANALYSIS i

l SUPP0RTED BY TEST DATA ON SIMILAR MATERIALS.

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CONCLUSION - SAFETY FUNCTION WAS NOT IN QUESil0N.

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EMERGENCY FAN 000 LING UNITS

MOTOR JUMPER LEADS

CORRECTIVE Acil0NS TAKEN

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UPON DISCOVERY OF DISCREPANCY ON ONE FAN COOLING

UNIT, THE 0THER TWO WERE IMMEDIATELY INSPECTED.

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PROMPTLY REPLACED DISOREPANT MOTOR JUMPER LEADS ON

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ALL 3 UNITS.

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' PROMPTLY REPORTED TO NRC.

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PERFORMED ROOT CAUSE DETERMINATION AND CONCLUDED

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THisWAS ANISOLATEDSITUATION:

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l - UNIQUE CONFIGURATION (SEE FIGURE 1? i

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i - CONFIRMED OTHER EQ M0 TORS HAVE CONVENTIONAL

l TERMINATIONSLSEE FIGURE 2?

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) COMPLETED OPERABILITY DETERMINATION.

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i NO FURTHER ACTIONSWARRANTED.

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FIGURE 2

i TYPICALMOTOR 0ABLE TERMINATION

(N0 JUMPER LEADS?

l _e.r. . . = a.

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EMERGENCY FAN COOLING UNITS

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MOTOR JUMPER LEADS

AWARENESS PRIOR T0 NOVEMBER 30,1985

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VENDOR SUPPLIED INFORMATION DID NOT SPECIFICALLY

! IDENTIFY 5,40 TOR JUMPER LEADS,  !

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ORIGINAL FIELD VERIFICAT10N IDENTIFIED MOTOR AND FIELD

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! CABLETERMINATION.

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l ' FAN WOTORS UTlll2ED IN ATYPICAL EQ MOTOR APPLICATION,  ;

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ASSOCIATED WITN AIR HANDL!NG UNIT ASSEMBLIES, RESULTED

IN NOTIDENilFYING MOTOR LEADS,  :

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' RESTRICTED PHYSICAL A00ES$1BILITY.

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! GPUN NOT AWARE OF ANY INFORMATION PROVIDED TO

! LICENSEES BY NRC OR INDUSTRY ON DISOREPANT WOTOR l

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i JUWPER LEADS ASSOCIATED WITH EMERGENCY FAN 000 LING

! UNITS,

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EMERGENCY FAN COOLING UNITS

MOTOR JUMPER LEADS

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i SUMMARY

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' DISOREPANCY ISISOLATED AND AFFECTS A LIMITED NUMBER

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OFSY$TEMS AND COMPONENTS,

l -1 TYPEOFJUMPERLEADWIRE

-1 SYSTEM

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-3 IDENil0ALCOMPONENTS

! ' DISOREPANCY WAS IDENTIFIED BY GPUN AND PROMPTLY  !

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REPORTED TO NRC,

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- APRll18,1986 SITE MEETING

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APRIL 25,1966 LETTER TO NRC

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TELEPHONE 0 ALLS

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LER 86-009-00 l

' DISOREPANCY WAS CORRECTED WITHIN ONE WEEK OF

l DISCOVERY,

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! OPERABILITY DETERMINATION CONCLUDED aVMPER LEAD

WlRES CAPABLE OF PERFORMING FUNCTION,

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OPERABILITY DETERMINATION PRESENTED TO AND REVIEWED

! BY NRC DURING JULY 7-9,1986 INSPECTION,

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EMERGENCY FAN COOLING UNITS

MOTOR JUMPER LEADS ,

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SUMMARY

' LICENSEE DEMONSTRATED BEST EFFORTS TO COMPLETE EQl

THl$ EQUIPMENT WITHIN THE NOVEMBER 30,1985 DEADLINE.

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- IDENTIFIED FAN UNIT MOTORS, FIELD CABLE AND SPLICE .

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! 0N EQ MASTER LIST,  ;

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I - PREPAREDEQFILES ANDSYSTEMCOMPONENT i

EVALVATION WORK SHEETS FOR AB0VE. l

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- CONDUCTED WALKDOWN 0F THIS EQUIPMENT.

I - GPUNSHOULDNOTHAVEKNOWN.

' GPUN CONCLUDES THE ISSUE IS THE LACK OF DOCUMENTATION

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! DEMONSTRATING ENVIRONMENTAlQUAllFICATION OF SPECIFIC

4 MOTOR JUMPER LEADS FROM NOVEMBER 30,1985 TO APRIL 22,

! 1986.

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