ML20054F751
| ML20054F751 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 06/09/1982 |
| From: | Skates M ZACK CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-82-660-000 PT21-82-660, PT21-82-660-000, NUDOCS 8206170285 | |
| Download: ML20054F751 (5) | |
Text
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[Q'"3 9 46 ooh 12TH PLACE e CHICAGO (CICERO)ILL 60650 e 312/242 3434
, 4401 WESTERN e FLINT MICHIGAN 4 506 e 313/736 2040 the ZACK co.
CUSTOM METAL FABRICATION June 9, 1982 U.S.N.R.C.
Regional III Office 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attn:
Mr.
J.G.
Keppler Re:
Possible Deffective Curtain Type Fire Dampers as furnished to Zack Company by American Warming and Ventilating Inc.
Subject:
Reportable 10 CFR Part 21 Gentlemen:
Zack Company received the attached letter dated June 2, 1982 fro. American Warming and Ventilating Inc. on June 8,
- 1982, in regards to a possible discrepancy in Curtain Type Fire Dampers 18" wide and narrower.
Zack Company has commenced inspections of listed fire dampers.
We will issue a formal report as to the findings / discrepancies found at completion of the investigation.
Yours very truly, M
Ac k S Mai-tin L.
Skates MLS/lf encl.
CC:
T. Quaka - CECO QA C.Z.
DeZutel J.C.
DeZutel D. Malzahn k*
C.
Baumgardner C.
Eichstaedt Q.A.
Q.C. Site File / Chicago / Site 8206170285 820609
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- FOUNDED TO SOLVE THE UNIQUE METAL FABRICATION NEEDS OF INDUSTRY
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- DED!CATED TO CLEANING AND CUSTOMlZING THE AIR OF THE WORLD a
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4690 Vy.12Til PLACE e CHICAGO (CICERO)ILL.60650
- 312/242-3434
- 44D>WEf! TERN
- FLINT MICHIGAN 48506
- 313/736 2040 e
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CUSTOM METAL FABRICATION
%.;;;;gM June 8, 1982 Coranonwealth Edison Company R.R.#1 Dox 240 LaSalle Nuclear Power Station Marseilles, Ill. 61341 Attn:
Mr. Joseph Dierbeck Re:
Curtain Type Fire Dampers as furnished.
to Zack Company by American Warming &
Ventilating Company
Subject:
Reportable 10 CPR Part 21 Gentlemen:
This is to confirm our telephone conversation of 12:40 PM CDT, this date in regards to a possible discrepancy in fire damper closure. Zack Company received the attached letter dated' June 2, 1982 from American Warming and Venti-lating Inc. on June 8, 1982.
Zack Company will commence inspection of listed fire dampers on Wednesday June 9, 1982..We will issue a formal report as to the findings / discrepancies found on inspection.-
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Yours very truly, THE ZACK COMPANY CJ.&Q?g&Djfr.
Carl L.
Eichstaedt, CLE/nw cc:T.Quaka - CECO QA C.Z.DeZutel J.C.DeZutel D.Malzahn-C.Baumgardner Q.A.
Q.C.-Site File /Chicage/ Site
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. FOUNDED TO SOLVE THE UNIOUE METAL FABRICATION NEEDS OF INDUSTRY *
- DEDICATED TO CLEANING AND CUSTOMi' ZING THE AIR OF THE WORLD
- GilWf K Oil WQifilliIQ
.s.
JUN - B 1932 anc ventilating inc June 2, 1982 The Zack Company 4600 West 12th. Place Chicago, IL 60650 Attn:
Carl Eichstaedt Ref:
Zack P.O. No. 9505 Commonwealth Edison /LaSalle Nuclear Station AUV Job No. 90116 Subj ect :
Curtain Type Fire Damper Discrepancies
Dear Mr. Eichstaedt:
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There is a possibility that certain Curtain Type
,.l Fire Dampers shipped before March 24, 1981 may not close
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when the fusible link separates.
i These fire dampers are units 18" wide and narrower which have small fusible links.
A list of the applicable tag numbers is attached.
Attached is a set of instructions for inspection and, if dampers are found to be per sketch "A",
instruc-tions for replacement of clover hooks.
If you find any dampers needing to have the clover changed, we will be -
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happy to send you the necessary parts.
Yours truly,
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Donald E. Sloan Q.A. Manager cc:
File, chron, Q.A.
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DAMPER LIST 901T6-OVC37Y IVX42Y OVC38Y
'1VX45Y OVC39Y IVX46Y OVC46Y 2VD04Y OVC47Y 2VD07Y OVC48Y 2VD12Y OVC49Y 2VD15Y OVD07Y 2VD21Y IVD04Y 2VD25Y 1VD07Y 2VX30Y IVD15Y 2VX31Y 1VD25Y 2VX32Y IVX30Y 2VX33Y IVX31Y 2VX34Y IVX32Y 2VX35Y IVX33Y 2VX36Y 1VX34Y 2VX37Y 1VX35Y 2VX38Y 1VX36Y 2VX39Y 1VX37Y 2VX40Y IVX38Y IVX39Y 1
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FUSIBLE LIIIK IllSPECTION o
/d;D REPLACDIEf1TS A.
Inspection,of fire dampers with blade widths of 18" and less.
1.
Two types of fusible link assemblies are used as shown in sketches "A"
and "B".
2.
Inspect and ceasure the fuse link assemblics and identify the part as an "A" (2 1/2") or "B" (3").
3.
If the part is identi f ied a:. an "A" assembly (2 1/2"), remove the fuse link assembly as follows-a.
Support the blade stack so as to remove the loading from the fuse
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link assembly.
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b.
Remove the fuse link assembly by straightening the clinch straps and sliding the assembly from them.
c.
Replace the fuse link assembly with a "B" assembly by sliding the clinch straps through the wire loops.
d.
Bend the clinch straps upward and firmly secure the new fuse link assembly against the bottom of the blade stack.
e.
kemove any supports and inspect to make certain that the fuse link assembly is centered on the blade stack.
Shift the assembly until it is centered.
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.i SKETCH "A" SKETCH "D" h.
Inspection of fire dampers with blade width greater than 18".
1.
Either the "A" assembly or "B" assembly is correct and no corrective action is required.
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