ML20234D985
| ML20234D985 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Quad Cities |
| Issue date: | 10/04/1972 |
| From: | Skovholt D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Seiss C Advisory Committee on Reactor Safeguards |
| Shared Package | |
| ML20234A777 | List:
|
| References | |
| FOIA-87-40 NUDOCS 8707070413 | |
| Download: ML20234D985 (2) | |
Text
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l-3'[ '\\,b UNITED STATES II [r b d ATOMIC ENERGY COMMISSION f
WASHINGTON, D.C. 20545
%, %,5 eD' RECEIVED October 4, 1972 Docket No. 50-254 L'.S. Aloi.t
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tDVISORY 0MMl1 TEE ON hEACIC5, SAFEGUARDS Dr. Chester P. Siess Chairman, Advisory Comittee on Reactor Safeguards U. S. Atomic Energy Comission Washington, D. C.
20545
Dear Dr. Siess:
Sixteen (16) copies of the following am transmitted for the
. Comittee's information:
TWX from Commonwealth Edison Company date'd September 29, 1972, reporting an incident regarding the 12th suppression chamber to drywell vacuum breakers.
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Sh m4, affolt&
Donald J.
Assistant Dimetor for Operating Beactors Dim otorate of Licensing Ehclosums:
As stated
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OITICIAL 064, ONLY SUPPLEMENT NO. 158 CATEGORY B dhsal Cities Unitl October 6,1972-@-
9 01 Vacuum Breakers
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ACRS Commonwealth Edison Coinpany TWX dated September 29. 1972 advises that an inspection at Unit I revealed three suppression chasher te drywell vacuum breaker valves lodged open even though tleeir i
remote indicators showed " closed". Modifications are 1eing made to correct this condition.
1 This matter is scheduled for discussion with the Regulatory Staff at the October 1972 ACRS meeting.
The enclosed material should be retained pending completion of the corrective action.
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I ACRS
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