ML19323G952

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Clarifies 791017 Response to IE Bulletin 79-13,Revision 2, Re Feedwater Piping Cracks.Early Responses Addressed Design, Fabrication,Preservice & Inservice Insp & Operation History.B&W Owners Group Is Applicable
ML19323G952
Person / Time
Site: Crane Constellation icon.png
Issue date: 06/02/1980
From: Herbein J
METROPOLITAN EDISON CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-13, TLL-184, NUDOCS 8006090313
Download: ML19323G952 (2)


Text

Metropolitan Edison Company Post Office Box 480 Middletown, Pennsylvania 17057 717 944 4041 l

Writer's Direct Dial Numtwr i

i June 2, 1980 TLL 184 l

Office of Inspection and Enforcement Atta:

B. H. Grier, Director Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pa.

19406

Dear Sir:

Three Mile Island Nuclear Station, Unit I (TMI-1)

Operating License No. DPR-50 Docket No. 50-289 IE Bulletin 79-13, 79-13(2)-Feedwater Piping Cracks This letter is submitted to clarify our response to IE Bulletin 79-13 Revision 2 dated October 17, 1979, concerning cracking in feedwater system piping.

We have responded in three (3) letters, June 26, 1979 (GQL 0807), July 13, 1979 (GQL 0883), and August 17, 1979 (GQL 1048), to the NRC letter of May 25, 1979.

In our responses we addressed the design, fabrication, preservice/

inservice inspection, and operating history of the feedwater system. Additionally, a response submitted by the Sacramento Municipal Utility District (SMUD) as a spokesman for the B & W Owners Group, which included TMI-I on August 13, 1979, explained how the B & W Facilities plan to meet the intent of IE Bulletin 79-13.

l This plan entails volumetric inspection of all auxiliary feedwater nozzles to piping welds, the addition of ultrasonic testing as a primary test, and evaluation and dispcsition of UT results in accordance with Section XI of the ASME Code at Davis Besse, Oconee III and Rancho Seco.

Therefore, Met-Ed considers the response to this bulletin to be complete.

Sincerely,

$gned J. G. Herbein J. G. Herbein Vice President-TMI-I JGH:DGM: hah

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cc:

J. T. Collins B. J. Snyder 6

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Metropohtan Ed. son Company is a Member of the General Public Utilities System 8000000 M

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