05000327/LER-1981-017-03, /03L-0:on 810212,welder Accidentally Blew Pin Hole in Pipe Sleeve,Releasing Low Level Activity Xe-133.Caused by Thin Wall Pipe & Restricted Access.Pin Hole Repaired

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/03L-0:on 810212,welder Accidentally Blew Pin Hole in Pipe Sleeve,Releasing Low Level Activity Xe-133.Caused by Thin Wall Pipe & Restricted Access.Pin Hole Repaired
ML19347D220
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 03/04/1981
From: Kirk G, Mcgriff J
TENNESSEE VALLEY AUTHORITY
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19347D217 List:
References
LER-81-017-03L, LER-81-17-3L, NUDOCS 8103110486
Download: ML19347D220 (1)


LER-1981-017, /03L-0:on 810212,welder Accidentally Blew Pin Hole in Pipe Sleeve,Releasing Low Level Activity Xe-133.Caused by Thin Wall Pipe & Restricted Access.Pin Hole Repaired
Event date:
Report date:
3271981017R03 - NRC Website

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" ' EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lo 21l Unit 1 in mode 5.

During welding'of a saddle on the 4-inch schedule 10 co11ector headerf.'

to holdup tank. A for a pipe Stanger, the welder accidentally blew a pin hole in the' pipe t '

lo # 31 l I= 6 1 J releasing very los level activity xenon-133 gas. This event is reportable per i

6.9.1.13.d of Sequ'oyah Unit 1 Technical S Mcifications. There was no effect upon

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l i ) o l I The" location of the weld was inside a 'oice sleeve. restrictine ace'ess.

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~ l The nin I Ii1iI I pipe and restricted access contributed to the accidental blow-out of the oice.

No release hole was repaired using approved procedures with required inspections.

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N'ame of Pre arer J. M. McGriff /G. B. Kirk

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