ML19327A845

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Comments on 890606 Safety Evaluation of Facility IGSCC Insp Plan & Repairs Conducted During Fall 1987 Refueling Outage
ML19327A845
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 10/05/1989
From: Stols R
COMMONWEALTH EDISON CO.
To: Murley T
Office of Nuclear Reactor Regulation
References
NUDOCS 8910180247
Download: ML19327A845 (1)


Text

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Commonwealth Edison

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Addresslleply to:

_ Chicago, Minois 00090 0767.-

October 5, 1989

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Dr. Thomas E. Hurley, Director.

Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission.

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-Washington, DC 20555

Subject:

Quad Cities Station Unit 1 Intergranular Stress Corrosion

-Cracking Inspection Plan and Results NRC Docket No 50-254 Reference-(a):

T.H.Ross to T.J. Kovach letter dated June 6, 1589 1

i Dr. Hurley The referenced letter transmitted the Safety Evaluation of the Quad Cities, Unit ~1,.Intergranular Stress Corrosion Cracking Inspection Plan and Repairs. conducted during the Fall, 1987 Refueling Outage.

Commonwealth Edison l.

has conducted-a review of the Safety Evaluation.

The following comment is-provided for-NRC Staff consideration:

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Paragraph 2.2 Ultrasonic Examination states that " flew indications were found in fourteen welds, with seven (four 12-inch, one 22-inch j

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and two 28-inch) in the recirculation systemi.. Almost all of the r

flaws found in the 12-inch recirculation-and 6-inch core-spray welds...".

The text'should read: " flaw indications were found in fourteen welds, with seven (five 12-inch, one 22-inch and one 28-inch) in the recirculatic,n system... Almost all ;l the flaws found in-the 12-inch recirculation and 10-inch core spray I

Welds...".

s If there are any questions or comments, please direct them to this i

office.

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Very truly yours, R. Stols Nuclear Licensing Administrator 1

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cc:

A.B. Davis - Regional Administrator, RIII l

T.H. Ross - Pro',ect Manger, NRR H. Koo - NRR Senior Resident Inspector, Quad Cities

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