05000259/LER-1980-030-03, /03L-0:on 800406,during Normal Operation,Hpci Steam Line Space High Temp Switch TS-73-2A Operated Incorrectly During SI 4.2.B-37.Caused by Installation of Wrong Type Switch.Switch Replaced & Tech Specs Revised

/03L-0:on 800406,during Normal Operation,Hpci Steam Line Space High Temp Switch TS-73-2A Operated Incorrectly During SI 4.2.B-37.Caused by Installation of Wrong Type Switch.Switch Replaced & Tech Specs Revised

ML19323B455
Person / Time
Site:	Browns Ferry
Issue date:	05/05/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19323B454	List: 05000259/LER-1980-030, Forwards LER 80-030/03L-0 05000259/LER-1980-030-03, /03L-0:on 800406,during Normal Operation,Hpci Steam Line Space High Temp Switch TS-73-2A Operated Incorrectly During SI 4.2.B-37.Caused by Installation of Wrong Type Switch.Switch Replaced & Tech Specs Revised
References
LER-80-030-03L, LER-80-30-3L, NUDOCS 8005120396
Download: ML19323B455 (2)

LER-1980-030, /03L-0:on 800406,during Normal Operation,Hpci Steam Line Space High Temp Switch TS-73-2A Operated Incorrectly During SI 4.2.B-37.Caused by Installation of Wrong Type Switch.Switch Replaced & Tech Specs Revised

Event date:
Report date:
2591980030R03 - NRC Website

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TS-73-2A, operated incorrectly during SI 4.2.B-37 (TS 3.2.B).

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cAusE CESCRIPTION ANu CORRECTIVE ACTIONS 1i lo l l A damaged switch was inadvertently replaced with a switch normally used in the l

lililI main steam line tunnel which is an N.C. rather thanan N. O. switch. The switch was g, i ;,i l replaced, S.I. revised and the main steam line switches will be color coded. The

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LER SUPPLEMENTAL INFORMATION 1:

l' BFRO-50 259 / 8030 3.2.8 Technical Specification Involved j

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Reported Under Technical Specification 6.7.2. M3)

Date of Occurrence 4/6/80 Time of Occurrence Unit

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Identification _ and Description of Occurrence: The HPCI steam line space high temperature switch, TS-73-2A, operated incorrectly during the performance of SI 4.2.B-37. An N.C. switch had been installed rather than an N.O. switch.

i I-Conditions Prior to Occ'2rrence:

Unit 1 @ 817.

j Unit 2 @ 987 e-Unit 3 @ 1007.

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t Action specified in the Technical Specification Surveillance Requirements m:t due to inopjrable erplpment.

Describe.

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Repair within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or declare the system inoperable.

Aplarent Cause of occurrence: Personnel error.

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<bjllysis of Occurrence:

There was no damage to plant equipment. There was i

no activity release, no personnel exposure or injury and no danger to health or safety of the public.

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Corrective Action

The switch was replaced with one of the proper type. The SI will be reviiied, the N.C. switches will be color coded. The problem will be discussed with all personnel concerned.

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Failure Data:

None i

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• Reten tion :

eriod - Lifetime; Responsibility - Administrative Superv:sor

• R evision :

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