ML18139A454

LER 80-008/03L-0:on 800623,while Performing Periodic Test 26.1,found Air Ejector Monitor Alarm Setpoint Above Tech Spec Requirement.Caused by Instrument Drift.Alarm Setpoint Recalibr

ML18139A454
Person / Time
Site:	Surry
Issue date:	07/11/1980
From:	Joshua Wilson VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A453	List: ML18139A452 ML18139A454
References
LER-80-008-03L-01, LER-80-8-3L-1, NUDOCS 8007180327
Download: ML18139A454 (2)

Text

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I During the perfonnance of Perodic Test 26.1 it was discovered that the Air Ejector Jo j3 I . Monitor (RM-SV-211) Alarm Setpoint was above the Technical Specification requirement

,,'j Io I 4 I as stated in section 3.7.E Table 3.7.5. This is reportable as per Technical Io Is I Specification 6. 6. 2. b. The Air Ejectors were not in service at this time therefore lo Is I there was no release. The health and safety of the public were not affected.

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,c; CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

0 I This failure was caused by instrument drift in the high alarm setpoint. At no time were the limits of 10CFR20 Appendix B or Technical Specification 3.11.B.8 exceeded.

I The setpoint was readjusted and the monitor returned to service. 9

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• 1. L. Wilson 66 69 SC ;;

a NAME OF P R E P A R E R - - - - - - - - - - - - - - - - - - - PHONE:(804) 357-3184

ATTACHMENT 1

.. $UP~Y POWER STATION, UNIT DOCKET NO: 50-281 e e REPORT NO: 80-008/03L-0 EVENT DATE: 06-23-80 TITLE OF REPORT: RADIATION MONITOR (RM-SV-211) SET POINT DRIFT

1. Description of Event:

While performing Perodic Test 26.1 the Air Ejector Radiation Monitor Alarm Setpoint was found to be higher than allowed by Technical Specificatio~

3.7.E Table 3.7.5. This is reportable as per Technical specification 6.6.2.b.(4.

2. Probaole Consequences and Status of Redundant Systems:

The Air Ejectors for Unit two were not in service, therefore, there was no release and the health and safety of the public were not affected.

3. Cause:

The high alarm setpoint was caused by instrument drift in the Radiation Honitor (RM-SV-211).

4. Immediate Corrective Action:

Recalibrated Tuigh Alarm Setpoint.

5. Subsequent Corrective Action:

None required

6. Actions Taken to Prevent Recurrance No further action required. The Periodic Testing program is designed to lo:~::-=.

this type of failure.

7. Generic Implications None