05000280/LER-1979-018, Forwards LER 79-018/01T-0

Forwards LER 79-018/01T-0

ML18114A606
Person / Time
Site:	Surry
Issue date:	05/23/1979
From:	Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18114A607	List: 05000280/LER-1979-018, Forwards LER 79-018/01T-0 05000280/LER-1979-018-01, /01T-0 on 790509:solenoid Valve Model 8320A102 Mfg by Automatic Switch Co Found Environmentally Unqualified & Reportable Per IE Bulletin 79-01 & Tech Specs.Valve Could Fail to Control Admission & Venting of Air During LOCA
References
398, NUDOCS 7905290005
Download: ML18114A606 (3)

LER-1979-018, Forwards LER 79-018/01T-0

Event date:
Report date:
2801979018R00 - NRC Website

text

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e VIRGINIA ELECTRIC AND PoWER COMPANY RICHMOND, VIRGINIA 2 3 2 61

}ir. Jaine.a P. O'Reilly~ Director Office of Inspection and Enforce:itent F. s. ~-;uclear Regulatory Commission R~gion II 101 liarietta Street, Suite 3100 Atlanta, Georgia 30303

Dear tr. O'Reilly:

Serial lfo. 398 PO/F:i.T: haw Docket No. 5(*-280 50-281 License No. [PR-32 DPR-37 Pursuant to Surry Power Station Teclu1ical Specifications, and IE Bulletin 79-01, Environmental Qualification of Class IE Equipment, the Virginia Electric and Fover Company hereby submits the following Licensee Event Report for Surry L'nit ~;O

• l

• Report Ho.

LER 79-018/0lT-O Applicable P.eporting Requirenent IE Bulletin 79-01 and T. S

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• 6. 2

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Thia report has been reviewed by the Station Nuclear Safety and Operating Committee.and ~ill be placed on the agenda for the next ~eeting of the System i:-iuclear Safety and Operating Cor.i::iittee.

Enclosures (3 copies)

Very truly yours, C. }!. Stalling;,

Vice PreoidP,1t-Po,rer Supply and Production Operations cc: hr. John G. Davis, Acting Director (40 copies}

Office of Inspection and Enforcement

'.'!r. Willia~ G. HcDonalc!, Director (3 copies)

Office of ~(anagenent Infor,,,..sticn llnd Pro;ra;;; Control

NRC (7-7-7*).

iV1 :,Q6 CONTROL BLOCK:

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• LICENSEE EVENT REPORT l I I I I I I I G)

(PLEASE PRINT OR TY.LL REQUIRED INFORMATION) 6 EGJ lv!Alsl-rlsl, !G)la la 1-loJn;la*la lo.I lo lo 1014111111!,101 I 10 7

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LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 5T CAT 58 CON'T [TIJJ 7

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~~~~~ W© I o I s I ol o I o I 2 I s I o 101 o I s I a I 9 '7 I g I@ I a I s I ? I 1 '7 I 9 I G) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

[QJIJ I The Architect Engineer has i denti fi ed Sol euoi_d Valve, Madel #832QAJ 02, m<>rn1-factured by I

@II] I Automatic Switch Company, as being environmentally unqualified and reportable as pe:!:.___J

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I I.E.Bulletin 79-01 and Technical Specification 6.6.2.b.(9).

The valve could fail to

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I control the admission and venting of operating air for the inside containment trip

~

!valves on steam generator blowdown lines during a LOCA.

The fully redundant outside DC[IJ I containment trip valves Would have provided containment isolation, if required,

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I Therefore, the health and safety of the public were not affected.

7 8 9 SYSTEM CODE

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ATTACHMENT NPRD-4 TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

43 44 47 CIII] !The solenoid valves, Model f/8320A102, were identified as being similar to a solenoid l

[iJJJ !valve that failed environmental testing for the LOCA environment.

The-three affecteq I o::J2J ion each unit will be replaced with environmentally qualified valves.

ITTIJ ITE1 7

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FACILITY STATUS

% POWER OTHER STATUS @

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9 10 12 11 44 ACTIVITY CONTENT Q\\

RELEASED OF RELEASE AMOUNT OF ACTIVITY ITEl w @) ul(§) I NA I

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10 11 7

44 PERSONNEL EXPOSURES

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80 METHOD OF A

C>ISCOVERY DISCOVERY DESCRIPTION \\::31 l.lu@l Notification from AE I

45 46 80 LOCATION OF RELEASE@

NA 45 80 NUMBER TYPE Cc:SCRiPTION ~

[IEJ l o b l oJ@W@..___* _...,_NA..,__ _____ ~------------------'

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9 11 12 13 80 PERSONNEL INJURIES Q

NUMBER DESCRIPTION~

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9 11 12 LOSS OF OR DAMAGE TO FACILITY '43\\

TYPE

DESCRIPTION

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NRC USE ONL y ISSUED DESCRIPTION~

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10 68 69 NAMEOFPREPARER w. L. Stewart PHONE:

(804) 357-3184

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(Attachment, page 1 of 1)

Surry Power Station, Unit Docket No: 50~280, 281 Report No: 79-018/0lT-0 Event Date:

05-09-79 1, 2 l e

+

Environmentally Unqualified Solenoid Valve (SOV-BD-lOOA,B,G and 200A,B,C)

1.

Description of Event

The Architect Engineer has identified a solenoid valve, Model #8320Al02, manufactured by Automatic Switch Company, as being erivironmentally *unqualified for the conditions stated in I.E. Bulletin No. 79-01.

Six valves were identified, three in each of Surry Units 1 and 2.

2.

Probable Consequences and Status of Redundant Systems:

The solenoid valve could fail to function properly following a Loss of Coolant Accident.

These valves control the admission and venting of operating air for the containment trip valves on steam generator blowdown lines.

The ful1y redundant outside containment trip valves would have provided containment isolation, if required.

Therefore, the health and safety of the public were not affected.

3.

Cause

The solenoid valves, Model #8320Al02, were identified as being similar k.-

to another solenoid valve *that failed environmental testing.

I.

I I

I

4.

Lmmediate Corrective Action:

A search was initiated to locate environmentally qualified solenoid

• valves.

5.

Subsequent Corrective Action:

The subsequent corrective action will be the replacement of the present solenoid valves with environmentally qualified solenoid valves.

6.

Action Taken to Prevent Recurrence:

7.

No additional actions are deemed necessary.

The solenoid valves are being replaced.

Generic Implications:

Environmental qualifications of other electrical components will be addressed in the response tci IE Bulletin No. 79-01 *.