ML19225C783

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Confirms RO 79-052/01P:during Reanalyses of safety-related Piping Sys,Two Snubber Support Beams in RHR Steam Condensing Lines Lacked Required Capacity.Caused by Missing Pipe Guide on Level Instrument Leg
ML19225C783
Person / Time
Site: Brunswick Duke Energy icon.png
Issue date: 07/03/1979
From: Tollison A
CAROLINA POWER & LIGHT CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
BSEP-79-643, NUDOCS 7908020441
Download: ML19225C783 (1)


Text

79052-OlP Q 7 79 N

r.xs:-rm:-2ren--,c.-,e= rA Carolina Power & Light Compa.'y n =. m g e m=e g.

Brunswick Steds E$el:t'ric Plant P. O. Box 458 Southport, N. C.

28461 July 3, 1979 FILE: B3516.2 SERIAL: BSEP/79-643 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Reginn II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 & 2 LICENSE NO. DPR-62 DOCKET NO. 50-324 CONFIRMATION FACSIMILE FOR AN IMMEDIATELY REPORTABLE EVEh"r

Dear Mr. O'Reilly:

his facsimile confirms the verbal conversation between Mr. J. M. Brown and Mr. J. E. Ouzts of your office on July 2, 1979.

During reanalyses of Brunsvick Unit No. 2 safety-related piping syste=s resulting from the requirements of IE Bulletin 79-07, it was determined thrt two snubber support beams in the RHR steam condensing lines did not have the necessary capability to carry calculated loads under worst case seismic conditions.

Since this did not meet FSAR commitments, Carolina Power & Light Company decided to replace the beams before exceeding 113 psig reactor pressure.

Mditionally, physical inspection of pipe cupports of safety-related piping syste=s in the Unit No. 2 drywell revealed that a p.pe guide on a level instrument reference leg was missing.

his gufde vill be installed prior to startup of Unit No. 2.

Corrective actions are in progress at this titte.

A Licensee Event Report (sequential report number 52) vill be submitted as reqaired by Technical Specification 6.9.1.8.1 within 14 days providing further information on this subject.

Very truly yours, 7ndw h C. Tollison, Jr., Manager Brunswick Steam Electric Plant REP /jro t;30 00b 7 9,.tW cc:

E. R. Banks J. E. Ouzts D. B. Waters d

g gg u m e m. n n.3 7 9 0802 0 W/