ML17174A365
| ML17174A365 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 01/09/1980 |
| From: | Peoples D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-79-28, NUDOCS 8001160553 | |
| Download: ML17174A365 (2) | |
Text
.
- '1 *.*.
. ~-.,,;.... *---"""*-
- Commonwealtt.Jilllllllison *
- One First*National PiWChicago, Illinois Address Reply to: Post Office Box 767 *.
Chicago, Illinois 60690 January* 9, 1980
- Mr. James G. Keppler, Director Directorate of Inspection and
. Enforcement - Region III U.S~.Nuclear Regulatory CoI!linission 799 Roosevelt Road Glen Ellyn, Illinois 60137
Subject:
Dresden Station Units 1,2, and 3 Quad Cities Station Units 1 and 2 Zion Station Units 1 and 2 Response to IE Bulletin 79-28, Concerning NAMCO Model E..-\\180 Limit Switches
- NRC Docket Nos. 50-10/237/249,
. 50-254/265, and 50-295/304.
- Ref~rence (a):
- J. G. Keppler letter to c. Reed dated December 10, 1979 *.
Dear Mr. Keppler:
~
Reference (a) transmitted IE Bulletin 79-28 which.
reqttested action by licensees to identify and correct possible deficiencies. in. NAMCO model EA180 liinit switches.
A thorough investigation perfomed at *Dresden*..
- .Units 1,2, and 3 and Quad Cities Units 1 and 2 indicates
- that no. NAMCO model EA 180 limit switches are installed in safety relat~d systems, are planned for future instillatio:i,..
or are maintained as stock items in the storerooms.
As' such,
- no additional action is deemed necessary at this time.
- At Zion Units 1. and 2, NAMCO m~del EA180. limit
- . sw1 tches have' been installed and are: planned for -installation.
- on -some safety related equipE'J~_-rit.
These: switches are.reple3,cing *
- unqualified limit switches identified through IE Bulletin
- .No. 79-01.
'All limit. switches:*installed, thos*e scheduled for
- installation, a."1.d those maintained as spares* in the storeroom.
- .have b.een e::eamined in accordance with TS BUlietL'rlg 79-28 reauirements~.. None of these switches were date coded be~::een 020::79 and 08~79. * *No.other NPJ;ICO Eli.180, switches have been
- ~
- identified *on safety related systems.. No further action is deemed necessary.at.this.time.
.. *.*. 1
- .. ~0{ijO.
553 soo11so*
. i
. i..
j
... ~
- Please address any questions y9u may have con~erning this matter to this office.
c9:
Director, Pi vision of**
- Reactor Operations Inspection Very truly yours, tJ t_ 'f 1.,,~r1J/
D. L. Peoples*
Director.of Nuclear Licensing.
- '\\,.