05000324/LER-1980-083-01, /01T-0:on 801110,cracked Weld Found in Structural Steel Beam in Reactor Bldg.Caused by Lack of Fusion on Welds of Angle Clips Attaching Beam to Imbedded Wall Plate.Beam Rewelded,Using Larger Clips

/01T-0:on 801110,cracked Weld Found in Structural Steel Beam in Reactor Bldg.Caused by Lack of Fusion on Welds of Angle Clips Attaching Beam to Imbedded Wall Plate.Beam Rewelded,Using Larger Clips

ML19345B826
Person / Time
Site:	Brunswick
Issue date:	11/20/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19345B821	List: 05000324/LER-1980-083, Forwards LER 80-083/01T-0 05000324/LER-1980-083-01, /01T-0:on 801110,cracked Weld Found in Structural Steel Beam in Reactor Bldg.Caused by Lack of Fusion on Welds of Angle Clips Attaching Beam to Imbedded Wall Plate.Beam Rewelded,Using Larger Clips
References
LER-80-083-01T, LER-80-83-1T, NUDOCS 8012020578
Download: ML19345B826 (4)

LER-1980-083, /01T-0:on 801110,cracked Weld Found in Structural Steel Beam in Reactor Bldg.Caused by Lack of Fusion on Welds of Angle Clips Attaching Beam to Imbedded Wall Plate.Beam Rewelded,Using Larger Clips

Event date:
Report date:
3241980083R01 - NRC Website

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~ EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l During a routine inspection on October 10, 1980, a structural steel beam in the l

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attaching the structural beam to the imbedded wall plate. The beam was velded I

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LER ATTACHMENT - RO // 2-80-83 Facility: BSEP Unit No. 2 Event Date:

11-10-80 During a normal routine inspection on October 10, 1980, a structural steel.

beam in the reactor building was found to have a cracked weld. While' repairing this problem on October 17, it was discovered that this steel beam is used to brace a piping support on the Unit No. 2 EPCI discharge line outside the dry-well. This steel beam / pipe support assembly was immediately fixed and evaluated by engineering as to the.effect of this failure on the HPCI system operability.

This hvaluation determined that the system operability was' not affected due to the small loading involved. United Engineers & Constructors (UE&C) were instruc-ted to perform an analysis'of'this support failure to verify system operability.

On November 10, 1980, UE&C reported that the failed support would cause the piping to exceed allowable stress limits during a design basis seismic event.

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