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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~oconos s. Tsou4s March 2,-1995 k

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Nuclear Power Division

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y U. S. Nuclear Regulatory Commission 3

Attention: Document Control Desk j

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Subject:

Beaver VaBey Power Station, Unit No.1

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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.

j 2.

Letter from G. S. Thomas (Duquesne Light Company ) to U. S. Nuclear

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Regulatory Commission, " Response to Information Request Dated December 1, 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 j

Reference 2 for items 1, 2, 3, 4, 6, 7, 8, 9,10 and 14. A copy of WCAP-14277, "SLB Leak Rate 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

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

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'N Sincerely, Y

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-George. Thomas 130054 j

Enclosures I

cc:

Mr. L. W. Rossbach, Sr. Resident Inspector 3

g Mr. T. T. Martin, NRC Region I Administrator

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m n F FAiton. Sr. Project Manager 9503130143 950302 Lk 9

PDR ADOCK 05000334 2

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