05000339/LER-1980-089-03, /03L-0:on 801031,PT-26.3 (Axial Power Distribution Monitoring Periodic Test) Not Performed as Required.Caused by Personnel Error.Test Performed

/03L-0:on 801031,PT-26.3 (Axial Power Distribution Monitoring Periodic Test) Not Performed as Required.Caused by Personnel Error.Test Performed

ML19343A984
Person / Time
Site:	North Anna
Issue date:	11/19/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19343A981	List: 05000339/LER-1980-089, Forwards LER 80-089/03L-0 05000339/LER-1980-089-03, /03L-0:on 801031,PT-26.3 (Axial Power Distribution Monitoring Periodic Test) Not Performed as Required.Caused by Personnel Error.Test Performed
References
LER-80-089-03L, LER-80-89-3L, NUDOCS 8011240383
Download: ML19343A984 (2)

LER-1980-089, /03L-0:on 801031,PT-26.3 (Axial Power Distribution Monitoring Periodic Test) Not Performed as Required.Caused by Personnel Error.Test Performed

Event date:
Report date:
3391980089R03 - NRC Website

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e-U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK / / / / / / / (1)

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DOCKET NUMBER EVENT PA~E REPORT DATE EVENT DESCRINION AND PROBABLE CONSEQUENCES (10)

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On October 31, 1980 with the Unit at 91% power, PT-26.3 (Axial Power

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Distribution Monitoring) was not performed at 0206 hours0.00238 days <br />0.0572 hours <br />3.406085e-4 weeks <br />7.8383e-5 months <br /> as required. Since /

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the periodic test was performed when the error was discovered and all data was /

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satisfactory the health and safety of the public were not affected. This item /

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is reportable pursuant to T.S. 5,9.1.9.c.

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SYSTEM

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,~SUBCODE.. COMPONENT. CODE-SUBCODE

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ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. SUPPLIER ~ MANUFACTURER g/ (18) g/ (19) g/ (20) /Z/ (21) /0/0/0/0/ (22)'/Y/ (23) /N/ (24) /A/ (25) /Z/9/9/9/ (26)

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

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The periodic test 2-PT-26.3 was missed due to personnel error. When

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discovered, the periodic test was performed with satisfactory results.

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FACILITY METHOD OF STATUS

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NRC USE ONLY

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NAME OF PREPARER W. R. CARTWRIGHT-PHONE (703) 894-5151 12eq363.

Virginia Electric and Power Company North Anna Power Station, Unit #2 Attachment: Page 1 of 1 Docket No. 50-339 Report No. LER 80-089/03L-0

Description of Event

On October 31 with unic 2 at 91% power it was discovered that the required 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> survex11ance (2-PT-26.3 - Axial Power Distribution Monitoring) had exceeded the surveillance interval by 5. " hahrs.

This

.urveillance was required because the Axial Power Distrib.

c Monitoring System was inoperable at the time.

Probable Consequences of Occurrence The consequences of this event were minimal because the periodic test was immediately performed and the core axial power distribution was within the. limits of T.S..s3.2.6.

Consequently, the health and safety of the public were_not affected.

Cause of Event

The individuals responsible for performing the test over looked thi fact that the test was required to be performed every eight hours.

Immediat'e Corrective Action The procedure 2-PT-26.3. (Axial Power Distribution Monitoring) was performed with satisfactory results.

i Scheduled Corrective Action No scheduled corrective action required.

Actions Taken to Prevent Recurrence

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The control room log was changed to include an APDMS check every four hours for operability and evaluate the need to perform 2-PT-26.3.

Generic Implications

- There are no generic implications to this event.