05000333/LER-1980-028-03, /03L-0:on 800324,during Normal Operation,Loop B of Torus Cooling Was Declared Inoperable.Caused by Failure of Base Plate for Hanger H10-49A Per IE Bulletin 79-02. Temporary Repair Restored Sys to Operable Status

/03L-0:on 800324,during Normal Operation,Loop B of Torus Cooling Was Declared Inoperable.Caused by Failure of Base Plate for Hanger H10-49A Per IE Bulletin 79-02. Temporary Repair Restored Sys to Operable Status

ML19309F155
Person / Time
Site:	FitzPatrick
Issue date:	04/23/1980
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19309F151	List: 05000333/LER-1980-028, Forwards LER 80-028/03L-0 05000333/LER-1980-028-03, /03L-0:on 800324,during Normal Operation,Loop B of Torus Cooling Was Declared Inoperable.Caused by Failure of Base Plate for Hanger H10-49A Per IE Bulletin 79-02. Temporary Repair Restored Sys to Operable Status
References
IEB-79-02, IEB-79-2, LER-80-028-03L, LER-80-28-3L, NUDOCS 8004280559
Download: ML19309F155 (2)

LER-1980-028, /03L-0:on 800324,during Normal Operation,Loop B of Torus Cooling Was Declared Inoperable.Caused by Failure of Base Plate for Hanger H10-49A Per IE Bulletin 79-02. Temporary Repair Restored Sys to Operable Status

Event date:
Report date:
3331980028R03 - NRC Website

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NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (7 77)

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60 61 DOCK ET NUMBER 68 ti9 EVENT DATE 74 75 REPORT DATE 80 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h IO]2l l During normal operation 'B' loop of torus cooling was declared inoperable I

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POWER AUTHORITY OF THE STATE OF NEW YORK JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET NO.50-333 ATTACHMENT TO LER 80-028/03L-0 Page~ 1 of I

During normal operation, the 'B' loop of the Torus Cooling System was declared inoperable when required by Technical Specifications paragraph 3.5.B.

The system was declared inoperable as a result of a deficiency associated with Hanger H10-49A.

Specifically, the base plate for Hanger H10-49A failed the flexability requirements of NRC l&E Bulletin 79-02.

The redundant containment spray system and its associated Emergency Diesel Generator System were demonstrated operable as required by Technical Specification paragraph 3.5.B.4.

Therefore, the event did not represent a significant hazard to the public health and safety.

The system was restored to an operable status on the following day by installation of a temporary support. On April 8,1980, modi fication to the base plate associated with the referenced hanger was completed and the temporary support was removed.

No additional corrective action Is required.

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