ML19031B040

LER 1978-033-03 for Salem Unit 1 No. 11 Steam Generator Steam Flow Channel II

ML19031B040
Person / Time
Site:	Salem
Issue date:	07/12/1978
From:	Librizzi F Public Service Electric & Gas Co
To:	Grier B NRC/IE, NRC Region 1
References
LER 1978-033-03
Download: ML19031B040 (3)

Text

(~l PS~G Public Service Electric and Gas Company 80 Park Place Newark,_N.J. 07101 Phone 201/622-7000 July 12, 1978

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I I'll Mr. Boyce H. Grier to-:~:;_,- -:..:c;

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Director of USNRC >*o ____  ! .

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Off ice of Inspections and Enforcements ~U'l~ c::o Region 1 -rri

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Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 78-33/03L 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 78-33/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours, f.PL~*~~

F. P. Librizzi General Manager -

Electric Production CC: Director, Office of and Enforcement (30 copies)

Insp~ction ,ff,[GULATiJRY DOCKET f~L rnE ~~opv,~:

Director, Office~of Management Information and Program Control

( 3 copies)

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'782010299

' Report Number: 7./03L

~Report Date: 7/12/78 Occurrence Date: 6/23/78 Facility: Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New~ersey 08038 IDENTIFICATION OF OCCURRENCE:

No. 11 Stearn Generator Flow Channel II Inoperable

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CONDITIONS PRIOR TO OCCURRENCE:

Hot Standby, Mode 3 DESCRIPTION OF OCCURRE~CE:

At 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br />, while verifying flow transmitter calibration, No. 11 Stearn Generator Stearn Flow Channel II was found to be indicating low.

Technical Specification Action Statement 3.3.2.1, Action 14, was im-plemented. Instrumentation personnel recalibrated the transmitter and at 2300 hours0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br />, the channel was declared operable. Action Statement 3.3.2.1 was then terminated.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

• The cause of this occurrence was transmitter drift which was in the non-conservative direction. All remaining steam flow channels were operable.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.3.2.1, Action Statement No. 14, states that

-with the number of ope~able channels one less than the total number of channels, operation may proceed until the performance of the next required channel functional test, provided the inoperable channel is placed in the tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />. No. 11 Stearn Generator Stearn Flow Channel .II was placed in the trippeq condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and remained in that condition until it was returned to operable status.

CORRECTIVE.ACTION:

No. 11 Steam Generator Stearn Flow Channel II transmitter was recalibra-ted to within the Technical Specification value.

FAILURE DATA:

N/A Prepared by T. L. Spencer

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SORC Meeting No. 43-78

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r-vn1v1 .Jbb U. ~. NUC~J:AR REGULATURY COMMISSION (7*77)" * -

91cENSE-E EVENT REPORT

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI

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. DOCKET NUMBER 1 I 26810169o I 6EVENT I 2 I 3 I 1 I a !@I a I 1 I 1 I 21 1 I a10 CATE 74 75 REPORT CATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@

1IIIJ I During transmitter calibration check. No.* 11 steam Generator Steam Flow I

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I))!] Channel II was found to be out-of-spec low. All remaining channels *I

[))I] were operable. This is the third occurrence of this type.

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42 43 44 *. 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

III§] !The cause of this occurrence was instrument drift in the non-conservative OIIJ I direction. . Transmitter was recalibrated to wj tin T. s va J 1rn o:I!J .L,._,______________________.....__..;.._____________________________.....;.________________..,.

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NAMEOFPREPARER .......... _...T...._.-=L_.__s~o_e__n_c_e_r_________ PHONE: (609)365-7000 Salem Ext.~

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