ML20084Q423
| ML20084Q423 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, 05000000 |
| Issue date: | 07/24/1974 |
| From: | Abel J COMMONWEALTH EDISON CO. |
| To: | Goller K US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084Q426 | List: |
| References | |
| NUDOCS 8306130267 | |
| Download: ML20084Q423 (1) | |
Text
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Commuhith Edis n-I g
One First Nmr.at Plaza. CNcago 1:hr.ois dgp Address Reply to: Post Office Box 767
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Chicago. Illinois 60690 j
9 r s July 24, 1974
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Mr.
K. R. Goller u.s. {.p,g"I g/
f Assistant. Director y
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k for Operating Reactors 4
Directorate of Licensing g
Office of Regulation U.S. Atomic Energy Commission
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Washington, D.C.
20545 j
Subject:
Quad-Cities Unit 1 Inverted Control Rod Tubes, AEC Dkt 50-254 Il
Dear Mr. Goller:
1 As indicated in a letter to D.
J.
Skovholt dated October g
11, 1973 concerning this subject, the control blades at Quad-Cities R
Unit 1 were checked for inverted tubes during the spring 1974 re-fueling outage.
The attached report, entitled " Control Blade Inspection and Evaluation," summarizes the checks performed and the resulte.
On the b i: et the ree ulv
=~4 mramarinna n i c<'n a can in the attached report, all special requirements and testing discussed in letter to D. J.
Skovholt dated October 11 and 31, 1973 relative to inverted control blade tubes have been discontinued for-Quad-Cities Unit 1.
Your approval is requested to discontinue at Quad-Cities Unit 1 the three (3) actions required in the letter from D. J.
Skovholt dated April 1, 1974.
As discussed on Page 7 of the attached report, the effects of the remaining inverted control rod tubes are negligible relative to (1) rod drop accidents, (2) pressurization transients, and (3) accuracy of predicted shutdown margins.
The requirements of the April 1, 1974 letter will be met until approval to discontinue is received.
t One (1) signed original and 39 copies of this report are submitted for your review.
t Very truly yours, j& >}
. S. Abcl 8306130267 740724 Nuclear Licensing Administrator PDR ADOCK 05000254 S
PDR Boiling Water Reactors p
G879 Att.
00PY SENT REGION 1
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