ML20079M257

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Forwards Proprietary NEDC-30250, Exam of Cracked Jet Pump Beam from Peach Bottom 3, Per IE Bulletin 80-07, BWR Jet Pump Assembly Failure. Rept Withheld
ML20079M257
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 12/22/1983
From: Daltroff S
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Murley T
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19289B769 List:
References
REF-SSINS-6820 IEB-80-07, IEB-80-7, NUDOCS 8401270236
Download: ML20079M257 (1)


Text

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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BO X,86 99.

PHILADELPHI A. PA.19101

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December 22, 1993 Docket Nos. M-99't-f 50-279 D,r. Thoman E. Murley, Administrator Office of Insoection and Enforcement Region I U.S. Nuclear Requiatory Commis9 ton 631 Park Avenue King of Prussia, PA 19406

Reference:

I.E.

Bulletin 80-07, "BWR Jet Pumn Assembly Failure"

Dear Dr. Murley:

In March, 1981, ultrasonic (UT) examinations were conducted to assess the inteority of the jet numn hold-down beams at the mid-lenoth licament areas. bounding the beam bolt.

UT indications were found in the area of the hold-down bolt hole of jet oump beam No. 6 The results of further evaluation of beam No. 6 are contained in the attached recort, NEDC-30250, " Examination of a Cracked Jet Pumo Beam from Peach Bottom 3."

The recort categorizes the UT crack indication as intergranular caused by IGSCC.

The topical recort is classified as Class III Pronrietary by General Electric Company; however, General Electric has waived its dissemination restrictions on this document for release to the NRC.

If you have any nuestions or recuire additional information, do not hesitate to contact us.

N W Very truly yours,

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0401270236 830222

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Attachment

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A. R.

Blough, Site Inspector