ML20084C856

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Forwards Addl Info Re Operational Problems & Resolution of Limitorque Problem & Core Spray Water Hammer Problem,Per 710414 Request.W/O Encl
ML20084C856
Person / Time
Site: Dresden Constellation icon.png
Issue date: 05/14/1971
From:
COMMONWEALTH EDISON CO.
To: Morris P
US ATOMIC ENERGY COMMISSION (AEC)
References
12744, NUDOCS 8304080259
Download: ML20084C856 (1)


Text

_ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ __-________ _ _ _ _ _ _ _ _ _ _ - _ _ _

l CoMnonwealth Edisor9CoMI$h ONE F8RST NATIONAL PLAZA

  • C H I C A G O. ILLINOl$

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POST OFF1CE BOX 147

  • C H I C A G O, ILLINOIS 60490 May 14, 1971 Dr. Peter A. Morris, Director Division of Reactor Licensing U.S. Atanic Energy Cot::mincion Wauhington, D.C. 20545

Subject:

Additional Information concorning tho -

operation of Drendon Unit 2

Dear Dr. Morris:

On March 22, 1971, wo submitted to you nino reports concerning nevoral operational problems on Drondon Unit 2. On April 14, at a mooting with your Staff, wo discussed these reports.

At that meeting, members of your Staff requestod additional infor-mation concerning tho jot pump riser braco vibration problem, the venting problem an it related to the installation of a now air system for tho main otcam lino isolation valvoa, core asym =etry, and radwanto. On April 24, 1971, wo submitted to you four special reporto which were also concorned with operational problema encountered on Dresden Unit 2.

Enclosed in tho supplomontary information which your -

Staff requented in our meeting of April 14. In addition, we are nubmitting additional information concerning the resolution of the limitorque probicm and the core spray water hn==or problem which was discussed in Report Nos. 11 and 13, respectivoly.

We vould liko to point out again that the report concerning N -

of f-gau emissions will be filed with you prior to June 1, 1971, and . s that the fuel report which discunnes the causo of failed fuel at Dre9 den Unit 2 will also be cutmitted by Juno 1.

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