ML19274E802

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Notification of Possible Reportable Incident Concerning Rod Bowing Greater than That Seen on Previously Discharged Assemblies Discovered During Core 5-6 Refueling
ML19274E802
Person / Time
Site: Prairie Island Xcel Energy icon.png
Issue date: 04/19/1979
From: Tierney F
NORTHERN STATES POWER CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 7904240443
Download: ML19274E802 (1)


Text

NSD NORTHERN STATES POWER COMPANY l'ItAllllE ISI.AND NUCLEAlt GENEllATING PLANT ltit #2 Welch, MN 55089

! April 19, 1979 {g,J{1 Mr. James G. Keppler, Director Region III Office of Inspection & Enforcement l

l U. S. Nuclear Regulatory Commission 799 Roosevelt Road

, Glen Ellyn, IL 60137 Attention: R. F. Warnick Reportable Occurrence No. 79-12 An inrpection of Region 4 assemblies which were just removed from Unit I

! during our Core IV-V refueling revealed rod bowing which was greater than

' that seen on previously discharged assemblies. Westinghouse is performint; further studies to determine whether or not this exceeds the amount assumed in their analysis. We have therefore concluded that this may be reportable under TS 6.7 Bill. All of the fuel in Region 4 was discharged from the Core and additional inspection of fuel in other regions showed normal results.

Y /?

F. P. Tierney, Jr.

Plant Manager Prairie Island Nuclear Plant FPT/dz cc: L. O. Mayer Director, MlPC (2)i c/o Distribution Services Branch, DDC, ADM C

69 t

7904240 %

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