05000272/LER-1982-020, Forwards LER 82-020/03L-0.Detailed Event Analysis Encl

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Forwards LER 82-020/03L-0.Detailed Event Analysis Encl
ML20052H996
Person / Time
Site: Salem PSEG icon.png
Issue date: 04/28/1982
From: Midura H
Public Service Enterprise Group
To: Haynes R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20052H997 List:
References
NUDOCS 8205240286
Download: ML20052H996 (3)
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LER-1982-020, Forwards LER 82-020/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
2721982020R00 - NRC Website
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text

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n.,U PSIsG, Pi.t.!

!;"r vu,e Elortr n; anri Gas Crarnpiny f' O. P,o x E t hnuxks Br utje, New Jertry 08038 Salem Generatin9 Station April 28, 1982 Mr.

R.

C.

IIaynes Regional Administrator l'SNRC Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Haynes:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 82-020/03L Pursuant to the requirements of Salem Generating Station Unit No.

1, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 82-020/03L.

This report is required within thirty (30) days of the occurrence.

Sincerely yours,

//. l, h f' b e. "-)

t H.

J.

Midura General Manager -

Salem Operations RF:ks CC:

Distribution 8205240286 820428 PDR ADOCK 05000272 S

PDR Tne Em rgy P, on!.

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Report Number:

82-020/03L Report Date:

04-28-82 Occurrence Date:

04-05-82 Facility:

Salem Generating Station, Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Auxiliary Feedwater Storage Tank - Low Level.

This report was initiated by Incident Report 82-069.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 3 - Rx Power 0% - Unit Load 0 MWe.

DESCRIPTION OF OCCURRENCE:

On April 5, 1982, during routine operation, the Control Room Operator discovered that the Auxiliary Feedwater Storage Tank (AFST) c. Stained less than 200,000 gallons, the minimum volume required by the Technical Specifications.

At 0620 hours0.00718 days <br />0.172 hours <br />0.00103 weeks <br />2.3591e-4 months <br />, the AFST was declared inoperable, and Action' Statement 3.7.1.3.a was entered.

Later that day, af ter the AFST had been restored to an operable status, the contained volume again decreased be' low the speci-fication minimum.

At 2100 ;hourc', theiAFST was declared in-operable, and Action Statdms.nt: P.7.1:3.a was entered for a second time.

These occurrences constitused[ operation in a degraded mode in i

accordance with Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

i l

On both occasions, the AFST-level decreased as a result of feeding j

ethe steam generatora during normal steam dump operation.

In.the l

first instance, the operator inadvertantly failed to initiate i

! Lake-up to the AFST before increasing the' steam generator levels.

I On the second occasion, Demineralized Water Valve 1DR6 failed in the closed position, preventing make-up to the AFST.

The l

valve control circuitry was not yet operational, and the, manual j

handwheek -failed, preventing operation of the valve.

',/ ANALYSIS OF CCCURRENCE:

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[,

' Technical Specification 3.7.1.3.a requires; e

1

[

With the AFST inoperable, restor,e thd tank to operable' status wit.hin 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in hot shutdown within the l

r next '12 hourri.. '

3; h

y,

'hD 5 '% u -. l -,,.

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--n,-,

, - - - - - ~

.~ ----~-- --- - - -

LER 82-020/03L,

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CORRECTIVE ACTION

On the first occasion, the AFST was filled to obtain the specified minimum volume, and was declared operable.

At 0737 hours0.00853 days <br />0.205 hours <br />0.00122 weeks <br />2.804285e-4 months <br />, April 5, 1982, Action Statement 3.7.1.3.a was terminated.

The calibration of AFST level indicators later showed that the tank volume was actually within Technical Specification limits.

The operator involved was counseled by the Senior Shift Supervisor concerning Technical Speci-fication 3.7.1.3.

1 In the second case, Valve 1DR6 was opened by bleeding air off the actuator.

Demineralized water make-up was initiated, and the AFST volume was returned to specification.

The AFST was declared operable at 2354 hours0.0272 days <br />0.654 hours <br />0.00389 weeks <br />8.95697e-4 months <br />, May 5, 1982, and Action Statement 3.7.1.3.a was terminated.

The manual operator on Valve lDR6 was properly repaired and satisfactorily tested.

Due to past occurrences of a similar nature, the control valve and a second control room level indication witn a low level alarm, have been installed to improve system remote operation.

These changes were not fully operational at the time of the occurrences, however.

FAILURE DATA:

ITT-Grinnell Corp.

Air-operated Diaphragm Valve Mark No. A-215 Prepared by R.

Frahm e dW 4

Manager - Silem Generating Station SORC Meeting No.

82-45

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