ML17194B516
| ML17194B516 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion, LaSalle, 05000000 |
| Issue date: | 04/13/1983 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| CAL, NUDOCS 8304180544 | |
| Download: ML17194B516 (2) | |
Text
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,9 CONFIRMATORY ACTION LETTER Docket No.
Docket No.
Docket No.
Docket No.
Docket No.
Docket No.
Docket No.
50-237./
50-249 50-254 50-265 50-295 50-304 50-373 Commonwealth Edison Company ATTN:
Mr.
Cor~ell Reed Vice Pres1~ent Post Office Box 767 Chicago, IL 60690 Gentlemen:
Apri 1 13, 1983 This refers to the telephone discussion between Messrs. D. J. Scott and D. L. Farrar and other members of your staff and Mr. C. E. Norelius and other members of my staff on April 11, 1983, regarding the introduction of \\Goreign
- materials onto the seating surfaces of the main' steamline isolat*ion Malves (MSlV'$) on Dresden, Unit 2~
We understand that* the following items have been or will be accomplished.
A.
Dresden, Units 2 and 3
- 1.
Prior to Unit 2 startup, evaluate all Unit 2 containment isolation valves subjected to maintenance or repair work during the current outage to determine if tnere ts a possibility that foreign materials had been applied to the valve"'seating surface. For those valves where the seat was exposed during the. maintenance or repair work, reinspect a sample of two valves out of seven that were reworked and one valve out of five that were replaced: new.
These rein-spections will be witnessed by the Resident Inspector.
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Within.two days of the~-dat.e of this letter, evaluate -all Unit 3
- containment isolation vafves subjected to maintenance or repair work.after the shutdown for tfl'e last refuel 1ng outage to determine if there is possibility that foreign materials had been applied to the valy~. seating surfac~ and)*eport to Region III yoµr plan for dispositioning those y,alves wij*ere the seat was exposed during the maintenance or repair work.
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/'!.i-':1...
2.*
Develop, review, and approve a repair manual for MSIV's prior to the next refueling outage.
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i 8304180544 830413 I
PPDR ADOCK 05000237
! i
/,,E'..3 t, PDR i I NRC FORM 318 (10-80) NRCM 0240*
OFFICIAL RECORD COPY USGPO: 1981-335-960
Mr. Cordell Reed Apri 1., 1983
- 3.
Develop and implement an interim quality control inspection plan establishing appropriate"'hold 'points for valve disassembly and reassembly prior to any further maintenance or repair work on Unit 2 or 3 safety-related vatves. Develop, review and approve a standard inspection plan "for future use on activities involving safety-related valves prfor t~ the next refueling outage.
- 4.
Review, approve and implement existing maintenance and repair instructions and procedures for Unit 2 and 3 containment isola-tion valves to ensure proper p'recautions are 1o place to prevent the introduction of forei'"gn materials onto valve seating sur*faces prior to use of those instructions and procedures.
- 5.
Develop a training module and train maintenance mechanics within 60 days of this letter on the "'correct use of lubricants and sealants.
- 6.
Prior to further maintenance or repair work on safety-relat~d valves, discuss this event with all mechanical maintenance personnel to ensure that'~forefgn materials are not applied to*
valve seating surfaces.,,
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B.
La Salle, Unit 1 Quad-Cities, Units 1 and 2 Zi-0n, Unit~ 1 and Z
- Within ten days _*of.. t~i:t date of thiS letter notify Region III of the results of your reviaw to detennine if maintenance department practices at the La Salle,_ Quad-Citte*s and Zion stations could have resulted in *.
the introduction of foreign ma'terials onto the.seating surface of containment isolation valves*and actions planned at those facilities to preclude that possibility.
Please inform us immediately if your understanding of these actions ace different from that stated above.
If, for any reason, you cannot meet the long term completion dates estabHshed in this letter, please inform th:fs
- office prior to that commitment date. Also, please be advised that this Confirmatory Action Letter does not alter the actions to be taken pursuant
. *.... -. ' ' ~
OFFICE.........................
SURNAME ******* ; *****************
DATE. ************************
NRC FORM 318 (10-80) NRCM 0240 OFFICIAL. RECORD COPY
- USGPO: 1961-33!i-960