05000296/LER-1980-057-03, /03L-0:on 801223,continuous Air Monitor 3-RM-90-251 Declared Inoperable.Caused by Improperly Set Detector High Voltage.Voltage Reset to Proper Peak & Personnel Cautioned

/03L-0:on 801223,continuous Air Monitor 3-RM-90-251 Declared Inoperable.Caused by Improperly Set Detector High Voltage.Voltage Reset to Proper Peak & Personnel Cautioned

ML19343C549
Person / Time
Site:	Browns Ferry
Issue date:	01/16/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19343C544	List: 05000296/LER-1980-057, Forwards LER 80-057/03L-0 05000296/LER-1980-057-03, /03L-0:on 801223,continuous Air Monitor 3-RM-90-251 Declared Inoperable.Caused by Improperly Set Detector High Voltage.Voltage Reset to Proper Peak & Personnel Cautioned
References
LER-80-057-03L-03, LER-80-57-3L-3, NUDOCS 8103240468
Download: ML19343C549 (2)

LER-1980-057, /03L-0:on 801223,continuous Air Monitor 3-RM-90-251 Declared Inoperable.Caused by Improperly Set Detector High Voltage.Voltage Reset to Proper Peak & Personnel Cautioned

Event date:
Report date:
2961980057R03 - NRC Website

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?s REPORT oATE do EVENT oESCRIPTION AND PROSA8LE CONSEQUENCES h g l During refueling, the continuous air monitor 3-RM-90-251 was w1mA fan.3,m ht.

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g ;(TS 3.8.3-4) due to the detector high voltage being set to the wrone choto ceak.

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I g The instrument monitors the turbine building roof vent.

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the health or safety of the public. Redundant monitor 3-RM-90-249 was operable.

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CAUSE oESCRIPTION AND CORRECTIVE ACTIONS 27 g l The detector high voltage w%s improperly set.

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g l proper peak, functionally tested and returned to service. Personnel were cautioned I

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.u n.,n. Ferry Nuclear Plant BF 15. 2 1/10,'79 LER SUPPLEMENTAL INFORMATION ilFMi,,. 296_/ 8057 Technical Specirteation involved

• 3.8.3.4 6.7.2.b(2) dc.;i.,r:< *! Under Technical Specification _

Date f ".1ccurrence 12/23/80 Time of Occurrence 1055 Unit 3

Identt**[entiqn and Description of Occurrence:

Turbine building. roof vent continuous air monitor 3-RM-90-251 was declared inoperable.

gnnp gns ' Prior to Occurrence:

I. hit 1 at 73% power.

Unit 2 at 97% power Unic 3 refueling Action 3:;mcified in the Technical Specification Surveillance Requirements met duet. inoocrable equipment. Describe.

Ncne Appgent Cause of Occurrence:

Personnel error. Instrument was set to wrong photo peak.

j Anal..iL lpf Occurrence:

There was no danger to che health or safety of the puk' *c, no release of activity, no damage to plant or equipment and no resuAt.ing significant

. chain of events.

l Certi etive Actiem:

1 Recalibrated, functionally tested and returned to service.

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Period - Lifetime; Responsibility - Administrative Supervisor SRevni n:

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