05000260/LER-1980-046-01, /01T-0:on 801105,internals for Excess Flow Check Valve in Instrument Line to PDIS-75-28,-56,PDT-85-17, PDT-85-18,PI-85-19 & PDT-68-52 Found Missing.Caused by Const Installation Error

/01T-0:on 801105,internals for Excess Flow Check Valve in Instrument Line to PDIS-75-28,-56,PDT-85-17, PDT-85-18,PI-85-19 & PDT-68-52 Found Missing.Caused by Const Installation Error

ML18025B205
Person / Time
Site:	Browns Ferry
Issue date:	11/24/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18025B204	List: 05000260/LER-1980-046, Forwards LER 80-046/01T-0 05000260/LER-1980-046-01, /01T-0:on 801105,internals for Excess Flow Check Valve in Instrument Line to PDIS-75-28,-56,PDT-85-17, PDT-85-18,PI-85-19 & PDT-68-52 Found Missing.Caused by Const Installation Error
References
LER-80-046-01T-01, LER-80-46-1T-1, NUDOCS 8011250442
Download: ML18025B205 (4)

LER-1980-046, /01T-0:on 801105,internals for Excess Flow Check Valve in Instrument Line to PDIS-75-28,-56,PDT-85-17, PDT-85-18,PI-85-19 & PDT-68-52 Found Missing.Caused by Const Installation Error

Event date:
Report date:
2601980046R01 - NRC Website

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Tennessee Valley Authority Browns Ferry Nuclear Plant Form BF-17 BF 15.2 1/10/79 LER SUPPLEMENTAL INFORMATION BFRO 26I6 / 0046 Technical Specification Involved 3.7.D.I Reported Under Technical Specification 6.7.2;A.3

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I Identification and Descri tion'of Occurrence:

Duri~ refueling while performing SI 4.7.D;l-d, it was found that the intex.ahls for the excess flow check valve in instrument line to PDXS-75-28,-56' PDT-85-17,-18; PI-85-19; and PDT-68-52were missing.

Conditions Prior to Occurrence:

Unit 1 9

97%

Unit 2 6

refueling Unit 3 6.

92%

Action -specified in the Technical Specification Surveillance Requirements met due to ino erable e ui ment.

Describe.

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A arent Cause of Occurrence:

Construction installation error.

Anal sis of Occurrence:

There was no damage to plant equipment.

There was no activity release, no personnel exposure ox'n)uxy~d no danger to the health or safety of the public.

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A Valve was replaced.,

Mechanical maintenance instruction will be written, Failure Data:

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