05000270/LER-1980-020-03, /03L-0:on 801013,during Performance of Es on-line Test,Valve 2FDW-103 Failed to Close During Cycling.Caused by Failure of Torque Switch.Valve Manually Closed.Bad Torque Switch Replaced

/03L-0:on 801013,during Performance of Es on-line Test,Valve 2FDW-103 Failed to Close During Cycling.Caused by Failure of Torque Switch.Valve Manually Closed.Bad Torque Switch Replaced

ML16148A381
Person / Time
Site:	Oconee
Issue date:	11/12/1980
From:	Jackie Jones DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML16148A382	List: 05000270/LER-1980-020, Forwards LER 80-020/03L-0 05000270/LER-1980-020-03, /03L-0:on 801013,during Performance of Es on-line Test,Valve 2FDW-103 Failed to Close During Cycling.Caused by Failure of Torque Switch.Valve Manually Closed.Bad Torque Switch Replaced
References
LER-80-020-03L, LER-80-20-3L, NUDOCS 8011180712
Download: ML16148A381 (2)

LER-1980-020, /03L-0:on 801013,during Performance of Es on-line Test,Valve 2FDW-103 Failed to Close During Cycling.Caused by Failure of Torque Switch.Valve Manually Closed.Bad Torque Switch Replaced

Event date:
Report date:
2701980020R03 - NRC Website

text

REGULATORY*FORMATION DISTRIBUTION SYM (RIDS)

ACCESSION NBR:8011180712 DOC.DATE: 80/11/12.NOTARIZED: N0 DOCKET.

FACIL:50-270 Oconee Nuclear Station, Unit 2, Duke Power Co.

05000270 AUTHNAME AUTHOR AFFILIATION JONES,.L.

Duke Power Co.

RECIP.NAME RECIPIENT AFFILIATION Region 2, Atlante Off4ce, oft the Director SUBJECT: LER 80-020/03L-0:on 801013,during performace of ES on-line testvalve 2FOW-103 failed to clo.se during cyclingCaused by failure of torque switch.Valve manually closed.Bad torque switch replaced, DISTRIBUTION CODE : A002S COPIES RECEIVED:LTR.1ENCL 1 SIZE: 3 + J TITLE: Incident Reports NOTE.S:M Cunningham:all amends to FSAR & changes to Tech Specs.

05000270 AEODOrnstein:1cco RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAMEl LTTR ENCL ID CODE/NAME LTTR ENCLU ACTION:

REIDfRi, 04 3

3 INTERNAL: A/D COMP&STRU06 1

1 A/D:ENV TECH 07 1

1 A/D MATL & QUO8 1

1 A/D:OP REACTOO9 1

1 A/D PLANTiSYS10 1

A/D RAD PROT 1-1 1

1 A/D SFTY ASSE4l2 1

1 A/D TECHNOLOG13 1

1 ACC EVAL BR 14 1

1 AEOD

2.

2 ASLBP/JHARD 1

1 AUX SYS BR 15 1

1 CHEM ENG BR 16 1

1 CONT SYS BR 17 1

1 CORE PERF BR 18

1.

1 D/DIRHUM FAC19 1

1 DIRENGINEERI20 l

1 DIRHUM FACS21

1.

1 DIRSYS INTEG22 1

1 EFF;TR SYS 8R23 I

1 EQUIP QUALi BR25

1.

1 GEOSCIENCES 26 1

1 I&C SYS BR 29 1

1 I&Ei 05 2

2 JORDANE.,/IE I-1 LIC GUID BR 30 1

1 LIC QUAL BR 31 1

1 MATL ENG BR 32 1

1 MECH ENG BR 33 1

1 MPA 3

3 NRC POR 02 1

1 OP EX EVAL BR34 3

3 OR ASSESS BR 35 1

1 POWER SYS BR 36 1

1 R

S BR39 I

1 REACT SYS BR 40 1

1 EM L E 01 1

1 RELi & RISK A 41 1

1 1EA42 1 I

STRUCT ENG BR44 1

1 SYS.INTERAC 845 1

1 EXTERNAL: ACRS 46 16 16 LPDR 03 1

1 NSIC' 05 1

1 TERA:DOUG MAY 1

1 NOV 19 1980 70 NEC TOTAL NUMBER OF COPIES REQUIREDI: LTTR

- 0 ENCL5 40

NRC FOAM 366 F77)

U. S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK:

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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Ol IJ 7

a LICENSEE CODE 14

'IS LICENSE NUMBER

2.

5 LICENSE TYPE JO Si5 CAT 5.a CONT U

ROE LW6 15100 I 0121 7j0 1

1 8

1 13181 0n8 1 11 28 I0D a

60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES o 2 On October 13, 1980, during the performance of the E.S. On-Line Test, valve 2FDW-103 failed to close during cycling.

The valve was manually closed and the breaker locked open within the 4-hour time period permitted by Technical o1 I Specification 3.6.3.b(2).

The FSAR requires only one automatic remote operated 0

I E.S. valve for isolation of the system piping Reactor Building penetrations fthe system is not directly connected to the Reactor Coolant system and is not exposed to the Reactor Building atmosphere. This is the case tor 2'DW-1UJ.

C=

B Thus, this incident was of no significance with respect to safe operation and 7 & ~the health and salet at the puci wer no ed.

so CAUSTE

CAUSE

cOmp.

VALVE CCOE CODE SUBCOOE COMPONENT CODE SUBCOOE SUBCOC IcIHI LlzJ@

G~~J ISIS IIII I

ZJ LI 7

a 9

10 12 13 Is 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION.

LER/RO I EVENTYEAR REPORT NO.

CODE Type NO.

G EOT181 01 [J

L2 12 Oj

[,,I 122 01l 31i L

L O1 22 2

24HUOO 2

29 30 31 2

ACTION FCTURE EFFECT SHUTDOWN ATTACHMENT NPRO-4 PRIME COMP.

COMPONENT TAKEN ACTION.

ON PL4,PJT MAETHO HOURS 22, SUBMITTED FORM tiUB.

SUPPLIER MANUFACTUJRER 161iB JC) 1Z1 1J [O0 0 [0

1W@LY 4 LIJ 19 1919 1 3

2-4 1.5 1.8 3?

41 42z 4.3 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS [The torque switch on 2FDW-103 failed while the valve was going closed during the E.S. On-Line Test.

The valve was manually closed, the breaker locked ope, and the bad torque switch was replaced. A wiring error had occurred during the replacement of the switch, and the valve was closed from the Control Room before the error was corrected.

This caused the motor to burn up.

me motor I has been sent out for repair..

Until the motor.is reinstalled, 2FDW-103 will semai 7 A9 locked closed and its breaker will remain open.

P AC ILIT-METO OP STATUS

% POWER OTHER STATUS

\\../OF ENA STTS 05 Performance of E.S. On-Lin7 Test 7

a. 1 0

12 13 44 48 45 8

ACTIVITY CONTENT 1o J__FR fLEASEO OF RELEASE AMOUNT OF ACTIVITY 3105 LOATO3O5RLAS o

NA LOCATION O RELE 07 8

9 10, 11 4

PERSONNEL IXPOSURES Io NUMBER TYPE

DESCRIPTION

ID Lo lo 0

@ ZLz0L@

NA 7

1 9 11 12 13 PERSONNEL INJURIES s

NUMBER

DESCRIPTION

NA W

La] Of gg NA.

7 8

9 11 12 LOSS Or OR DAMAGE TO FACILITY 80 TYPE OESCRIPTION FI T

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a 9 10 PUBLICITY 80 IsN0

DESCRIPTION

NA Uc ONLY I~ Nl18[

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Jones so698 NAME OF PREPAREA PHONE:

(704) 373-8197 So187 a