05000338/LER-1981-059-03, /03L-0:on 810714,w/unit in Mode 1,reactor Protection & Engineered Safety Feature Logic Test for Train A,1-PT-36.1,had Not Been Performed for Apr 1981.Caused by Scheduling Error.Test Performance Schedule Reviewed

/03L-0:on 810714,w/unit in Mode 1,reactor Protection & Engineered Safety Feature Logic Test for Train A,1-PT-36.1,had Not Been Performed for Apr 1981.Caused by Scheduling Error.Test Performance Schedule Reviewed

ML20010C690
Person / Time
Site:	North Anna
Issue date:	08/13/1981
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010C687	List: 05000338/LER-1981-059, Forwards LER 81-059/03L-0 05000338/LER-1981-059-03, /03L-0:on 810714,w/unit in Mode 1,reactor Protection & Engineered Safety Feature Logic Test for Train A,1-PT-36.1,had Not Been Performed for Apr 1981.Caused by Scheduling Error.Test Performance Schedule Reviewed
References
LER-81-059-03L, LER-81-59-3L, NUDOCS 8108200316
Download: ML20010C690 (2)

LER-1981-059, /03L-0:on 810714,w/unit in Mode 1,reactor Protection & Engineered Safety Feature Logic Test for Train A,1-PT-36.1,had Not Been Performed for Apr 1981.Caused by Scheduling Error.Test Performance Schedule Reviewed

Event date:
Report date:
3381981059R03 - NRC Website

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.U.S. NUCLEAR REGULATORY COMMISSION..

LICENSEE EVENT REPORT e

CONTROL BLOCK'/ / /'/ / / / (1)

(PLEASE PRINT OR TYPE-ALL REQUIRED INFORMATION)-

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LICENSEE CODE-LICENSE NUMBER-LICENSE TYPE CAT

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OR DOCKET NUMBER.

~ EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE. CONSEQUENCES (10)

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/ On July 14, 1981, with the Unit in mode 1, it was determined that the Reactor-

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/ Protection and ESF Logic Test for train A, l-PT-36.1, had not been performed

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/ within the required 31 day surveillance interval +25% for the month of April,

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/ 1981. Since this test was performed only I week late, with satisfactory results,/

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/ the health and safety of the general public were not affected. This event is

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/ contrary to T.S. 3.3.2 and reportable pursuant'to T.S. 6.9.1.9.c.

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CAUSE

CAUSE COMP.

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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

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

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/ The Reactor Protection and ESF Logic A Surveillance Test, 1-PT-36.1, is required /

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/ to be performed on each train on an alternating basis.

During the Unit I refuel-/

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/ ing outage, Train A was tested on March 28 and Train B was tested on March 29,

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/ 1981. Due to a scheduling error, Train A was not performed again until May 13

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/ which placed it outside of the surveillance interval.

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FACILITY METHOD OF STATUS

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/E/ (28)

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LOCATION OF RELEASE (36)

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- NAME OF PREPARER _ W. R. CARTWRIGHT PHONE (703) 894-5151 8108200316 810812 PDR ADOCK 05000338 S

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.6 Virginia Electric and Power Company North Anna Power Station, Unit 1 Attachment: Page 1 of 1 Locket No. 50-338 Report No. LER 81-OS9/03L-0

Description of Event

On July 14, 1981 with the Unit in Mode 1, it was determined that the Reactor Protection and ESF Logic Test for Train A, 1-PT-36.1, had not been performed within the required monthly surveillance interval (including the allowable extension) for the month of April, 1981. This is contrary to T.S. 3.3.2 and reportable pursuant to T.S. 6.9.1.9.c.

Probable Consequences of Occurrence Since the surveillance interval for Train A was missed by only one week and since the surveillance interval for Train B was satisfied the health and safety of the general public were not affected.

Cause of Ivent The cause of this event was a scheduling error. The Reactor Protec-tion and ESF Logic Test, 1-PI-36.1, is required to be performed on each train on an alternating basis (at least one train each month). During the Unit I refueling outage Train A was tested on March 28 and Train B was tested on March 29, 1981.

Train A was not performed again until May 13, 1981 which is outside of the surveillance interval (including the allowable extension).

Immediate Corrective Action

Since this event was discovered on July 14, 1981 and 1-PT-36.1 was successfully completed on May 13, 1981, no immediate corrective action was necessary. However, a Deviation Report was submitted.

Scheduled Corrective Accion The performance schedule for this test has been reviewed to insure that it is performed in a timely manner in the future.

Actions Taken to Prevent Reccurrence No further action is required.

Generic Implications There are no generic implications associated with this event.