ML20087G103

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Forwards Beaver Valley Unit Internal Plugging Criteria Return to Power Ltr Rept & WCAP-14277, Slb Leak Rate & Tube Burst Probability Analysis Methods for ODSCC at TSP Intersections
ML20087G103
Person / Time
Site: Beaver Valley
Issue date: 03/02/1995
From: George Thomas
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20087G108 List:
References
NUDOCS 9503130143
Download: ML20087G103 (1)


Text

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, 15077-0004 (412) 643-8069 FAX 3

  • NN ~oconos s. Tsou4s March 2,-1995
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Nuclear Power Division

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U. S. Nuclear Regulatory Commission 3

y' Attention: Document Control Desk Washington, DC 20555-0001 j

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Subject:

Beaver VaBey Power Station, Unit No.1 Docket No. 50-334, License No. DPR-66 .]

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Tenth Refueling Outage Steam Generator Return to Power Report j 1

References- 1. Safety Evaluation by the Office of Nuclear Reactor Regulation Related to 3 Amendment No.184 to Facility Operating License No. DPR-66 Duquesne Light i Company Beaver Valley Power Station Unit No. I Docket No. 50-334.

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2. Letter from G. S. Thomas (Duquesne Light Company ) to U. S. Nuclear Regulatory Commission, " Response to Information Request Dated December 1,

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j 1994," December 13,1994. 4 Er.-losed ir a copy of the " Interim Plugging Criteria Return to Power Letter Repon," which  ;

is provided. to satisfy the requirements of Technical Specification 4.4.5.5.e and Reference 1, 1 parsgraph 2.6. This report also provides documentation associated with commitments identified in Reference 2 for items 1, 2, 3, 4, 6, 7, 8, 9,10 and 14. A copy of WCAP-14277, "SLB Leak Rate j

j and Tube Burst Probability Analysis Methods for ODSCC at TSP Intersections," which is referenced 2 in the Letier Report, is also enclosed. ,  ;

J Three tubes were pul:ed to support interim tube plugging criteria implementation as required j

by Reference 1 and Reference 2, item 5. These tubes provide eight tube support plate intersections  ;;;

for laboratory analyses. The results of the analyses will be provided to the NRC within ninety days a following restart from the tenth refueling outage. No leaking tubes were identified during this steam 3 generator examination.

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If you have any questions regarding the attached .information, please contact ]

Mr. G. A. Kammerdeiner, Nuclear Engineering Department, at (412) 393-5677.

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'N Sincerely,  ;

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-George . Thomas Y 9 -

Enclosures 130054 j I

cc: Mr. L. W. Rossbach, Sr. Resident Inspector g 3 Mr. T. T. Martin, NRC Region I Administrator m n F FAiton. Sr. Project Manager [

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9503130143 950302 PDR P ADOCK 05000334 2 ' Lky 9 PDR