05000325/LER-1979-096-01, /01T-0:on 791110,nonisolable Weld on Pump a Suction Line Test Connection Discovered Leaking.Cause Unknown.Line Cut,Plugged & Capped.Affected Weld Connections Will Be Metallurgically Evaluated

/01T-0:on 791110,nonisolable Weld on Pump a Suction Line Test Connection Discovered Leaking.Cause Unknown.Line Cut,Plugged & Capped.Affected Weld Connections Will Be Metallurgically Evaluated

ML19210D352
Person / Time
Site:	Brunswick
Issue date:	11/21/1979
From:	CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19210D351	List: 05000325/LER-1979-096, Forwards LER 79-096/01T-0 05000325/LER-1979-096-01, /01T-0:on 791110,nonisolable Weld on Pump a Suction Line Test Connection Discovered Leaking.Cause Unknown.Line Cut,Plugged & Capped.Affected Weld Connections Will Be Metallurgically Evaluated
References
LER-79-096-01T, LER-79-96-1T, NUDOCS 7911260338
Download: ML19210D352 (1)

LER-1979-096, /01T-0:on 791110,nonisolable Weld on Pump a Suction Line Test Connection Discovered Leaking.Cause Unknown.Line Cut,Plugged & Capped.Affected Weld Connections Will Be Metallurgically Evaluated

Event date:
Report date:
3251979096R01 - NRC Website

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60 61 DOCK ET NUMBER 68 69 EVENT CATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h I o l 2 I lWhile work was progressing on the seal replacement of the "A" reactor recirculation l pump, a mechanic noted that a nonisolable weld on pump "A" suction line test con-l o

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4 Inection was leaking. The 3/4-inch line is about 2-1/2 feet in length and contains a o

s 90* elbow, two 3/4-inch valves, and a cap.

The crack was associated with the pipe to l telbow weld away from the recirculation loop.

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9 10 11 12 IJ 18 19 20 SEOUENTIAL OCCURRENCE REPORT REVISION LE R/RO EVENT YE AR REPORT No.

CODE TYPE N O.

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33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h lThe line*was cut upstream of the 90* elbow, plugged, and capped per an approved plant i

o lTTTl [ modification. A similar modification was performed on the "B" pump during this period.i g JThe Unit No. 2 "B" pump was modified in 1977 and the Unit No. 2 "A" pump will be modi-l g, l 31 lfied at the next scheduled cold shutdown (presently December 1979). Affected welds on[

L' L4J Iboth Unit No. 1 connections will be metallurgically evaluated to determine the cause

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LER CONTINUATION--RO #1-79-96 FACILITY: BSEP Unit No. 1 EVENT DATE:

11-10-79 of failure.

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