05000321/LER-1980-051-03, /03L-0:on 800514,while Investigating Tubing Layout,Run of Tubing That Tapes Into Primary Containment Not Supported Seismically as Required.Caused by Installation Error.Tubing Will Be Resupported Per Seismic Specs

/03L-0:on 800514,while Investigating Tubing Layout,Run of Tubing That Tapes Into Primary Containment Not Supported Seismically as Required.Caused by Installation Error.Tubing Will Be Resupported Per Seismic Specs

ML19323J255
Person / Time
Site:	Hatch
Issue date:	06/08/1980
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19323J249	List: 05000321/LER-1980-051, Forwards LER 80-051/03L-0 05000321/LER-1980-051-03, /03L-0:on 800514,while Investigating Tubing Layout,Run of Tubing That Tapes Into Primary Containment Not Supported Seismically as Required.Caused by Installation Error.Tubing Will Be Resupported Per Seismic Specs
References
LER-80-051-03L-01, LER-80-51-3L-1, NUDOCS 8006190588
Download: ML19323J255 (2)

LER-1980-051, /03L-0:on 800514,while Investigating Tubing Layout,Run of Tubing That Tapes Into Primary Containment Not Supported Seismically as Required.Caused by Installation Error.Tubing Will Be Resupported Per Seismic Specs

Event date:
Report date:
3211980051R03 - NRC Website

text

LICENSEE EVENT REPORT n

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8 t,0 63 DOCK ET NUMUE H t.d 69 EVENT DATE 14 iS ftEPOHT DAT E 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h E IWhile investigating tubing layout for a planned design change with the I

g l unit in run mode, it was noted that 'a run of tubing that taps into the l

y l primary containment was not supported seismically as required.

This is I g ja nonrepetitive occurrence.

Since this line is 3/8" in diameter, a linel

@ l rupture would not interfere with an orderly reactor shutdown.

This linel

@ lhad no redundant supports.

The event posed no threat to public health l

qT1jor safety.

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LER #:

50-321/1980-051 Licensee:

Georgia Power Company Facility Name:

Edwin I.

Hatch Docket #:

50-321

~

Narrative

Report for LER 50-321/1980-051 During normal reactor

startup, while investigating exis* ting tubing layout for a planned design change, it was noted that on existing run of Lubing that taps into the primary contain-nant was not supported scismically, as required.

This tubing taps directly into the torus and serves as the low side sen-sing line for drywell to torus differential pressure transmit-ter, f46-N022A.

This transmitter serves an "indicacion only" function.

The backup transmitter was found to have seismical-ly supported sensing lines.

Since this tubing is 3/8" in diameter, a line rupture would not interfere with an orderly reactor shutdown.

This tubing run is located inside the cocondary containment.

This line has no redundant supports.

No significant occurrence took place as a

result of this event.

This is a non-repetitive occurrence.

This event posed no threat to public health or safety.

This event was caused by an installation error.

This tubing was not supported in accordance with the typical seismic tubing designs supplied by the A/E.

This tubing run and necessary supports are being redesigned per the A/E approved typicals.

This change will be made upon receipt of the necessary parts.

Completion is expected no later than the next refueling outage.-

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