ML20023D181
| ML20023D181 | |
| Person / Time | |
|---|---|
| Site: | LaSalle, 05000000 |
| Issue date: | 10/18/1982 |
| From: | Kempiak A C.F. BRAUN & CO. |
| To: | |
| Shared Package | |
| ML20023A480 | List: |
| References | |
| FOIA-82-366 BP-12, NUDOCS 8305190345 | |
| Download: ML20023D181 (1) | |
Text
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Page 1 C F C R AU N & CO Asue.ioiaryoss.nier. intern. tion.icorporation.
PHONE TALK A 9h ,
D* OCTOBER 18, 1982 9:00 AM To A J KEMPIAKN From ROGER LANKSBURY
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. PROJECT MANAGER U.S. NRC GLENN ELLYN, IL en 6356-N, CECO, LA SALLE COUNTY PLANT MATERIAL SAMPLE BP-12 Roger Lanksbury, NRC Region III inspector returned my call in regards to sample 39, A563,-nut identified in the NRC results of sample analysis telecopied to Braun on October 7, 1982. The results indicate .
that the carbon weight percent was 0.05. Our material specialist questioned the reported result of the sampling. The carbon seems to be unreasonably low for a carbon steel nut with a proof load strength of 97 ksi whose product analysis is 0.58 for grade A.
Roger replied that the ASTM standard indicates a maximum carbon content I and does not specify a minimum. This nut did pass the hardness test which was used to calculate the proof test. The NRC has tested other A 563 nuts whose results were not included in the October 7, 1982 telecopy.
These tests indicate carbon nntent of .0.08, 0.09 and 0.11.
BR CC Roger I.anksbury U.S. Nuclear Regulatory Commission f 799 Roet.evelt Road !
Glen Ellvn, IL 60137 .
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J S Fiedler -
R W Phillips L F Rorex , ,
A J Kempiak/ file t G R Boddeker*
l L W Boyd Jr. .
l W J Forsyth ,
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l (' R N Moore ,
l F M Patterson l i
l J A Raulinaitis I A Walsenko I A H Whitaker - !
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8305190345 830311 PDR FOIA PRENDER82-366 PDR Fue POWER DIVISION 6356-N/8.0 22W 2m .
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2--- , Rura: Route #1. Box *220 Marseilles, lilinois 61341
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1 I Telephone 815/357 6761 .'
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October 25, 1982 h /1 8 6 t.le' N x
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Mr. James G. Keppler 7 ,7 "c-, 7*
Regional Administrator
- Directorate'of Regulatory Operations dg,%,, ,' ,
Reglon ii1 #[/2/r 7, U.S. Nuclear Regulatory Commission 799 Roosevelt Road p*
Glen Ellyn, IL 60137 1 I
Dear Sir:
J Reportable Occurrence Report #82-121/01T-0 Docket 1050-373 is being submitted i to your office in accordance with LaSalle County Nuclear Power Station Techni- !
cal Specification 6.6.B.1. (I), performance of structures, systems, or components 1 that requires remedial action or corrective measures to prevent operation in a 1 manner less conservative than assumed in the accident analyses in the SAR or technical specifications bases, or discovery during plant life of conditions not specifically considered in the SAR or technical specifications that require remedial action or corrective measures to prevent the existence or development of an unsafe condition.
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- l G. J. Diederich Superintendent LaSalle County Station GJD/GW/Irw l
l Enclosure -
f cc: Director of Inspection & Enforcement Director of Management Information & Program Control U.S. NRC Document Management Branch inpo-Records Center i File /NRC 001 2 1 #
p-i G L C OM- -
' CONT OL BLOCat: l I I I I I
.Ih (PLEAsE PRINT C .
A TYPE- ALL ftEQUIRED INFdG.MATGN)
]8 l"i9, l t'lLICEN504 L l 5 cOOg (C l l l@lo lo l- I o f ol 34 16 0.1NwMeta LICENSL o l o l - l o l o26 l@36l LactNsE 4 !i loTveg lo Jolo !@l I 53 CAT 66 ig b 8 2 "e!I'Ll@loi5 80 81 Io Io lo 13 17 13 !64 @50l1 Ioi1121812V311 DOCstLT N6Magm EvtNT oATE 4 76 10REPORT l 2 I DATE s I 812S0l@
EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h gl At 1030 on 10/12/82, Ceco PE Informed LSCS of a potential safety concern Identified I gg by the second level review committee of C.F. Braun (Independent H\ ;C Review). l gl HVAC Duct Hangers S-2065 and 5-2049 were installed with4"X4"X3/16" l gy TS Instead of 4"X4"l/4" TS require'd by design Dwg. ;
gi M-1538. The ebiIlty of the VP system to perform its design function was I g; not affected. Safety related equip requiring ventillation from this sys l was not affected, safe plant operation was maintained at all times.
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'Eo's" "c^o'e'l SNe*CEe couPoNsNT Coof st s$'o's Su'sIEoE D, IS is l@ U,, @ ...W@ Iso lo in In la IT l@ l_a_.J@ U. @
, ,. ,. .. 2 SE cut NTI AL oCCUmmtNCE nyeoer7 mtvisnoes
" EVENT YE AR R EPonT No. Coot TYPE NO.
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@ ,ag/m0 18121 [--J 11 12 li I (d IoliI Lt_J L_j Lo_]
21 22 23 24 26 27 -
25 29 30 33 32 T N C 0 0 P T ME HOURS 58 i Pom bOS. Ll MANUF RER U@li]@ [z_J@ LzJ@ la la la in 40i Iv l@ lu_J@ Ld@ lY a
l o Ie lo 47I(! l sa 3 n as 33 45 42 as CAUSE DESCRIPTION AND CCRRECTIVE ACTIONS 27 g l During Field Installation of HGRS S-2065 and S-2049, 4"xf."x3/16" TS was I Desian review by St,L In'dicates that I g g inadvertently substituted for 4"x4"x1/4".
g gthe installed 3/16" thickness is acceptable. Design owg. H-1538 SHTSi ~ l g g20 and 76.will be revised to indicate the.3/16" thickness. I I
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'aN 5T sPowgm omtRsTATUS D15 o Y DasCOVERY DESCRIPT1oM
{ [B_J@ l o i 2 l 0 lhl" NA l (o_j@lC.F. Boa 0N prviru I A!T,v,T, esTENT AMOUNT oF ACTivlTY LOCATION 08 RELEASE RELE AstD of RELEASE .
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' PHONE:
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c I LER NUMB,ER: 82-121/01T-0 'xs N N ll LASALLE COUNTY STATION: Unit 1 \
lli DOCKET NUMBER: 050/373 IV EVENT DESCRIPTION:
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At 1030'on 10/12/82, CECO Project Engineering informed LaSalle Station of a potential safety concern identified by the second level review committes of C.F. Braun (Independent HVAC review Requi red By License NPF-11 Amendement 4 Condition 2.C.33.b). The finding was that installed HVAC duct hangers S-2065 and S-2049 were not installed in accordance with $st design . drawing M-1538 sht. 20 and 76 (tube steel members were 4"x4"x3/16" instead of 4"x4"x1/4").
V PROBABLE CONSEQUENCES OF THE OCCURRENCE:
After analysis it was determined that the ability of the VP system to' perform its design function was not af fected by this finding.
Safety related equipment requiring ventilation from this system was not degraded and safe plant operation was maintained at all times. Therefore, this is not considered a violation of the Technical Specification but is .being reported in adherence to the requirements of C.W . Schroeder's- letter to T.M. Novak dated 8/27/82.
VI CAUSE:
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.Duringethe field' installation of HVAC Duct Hangers S-2'065"and '
'S-2049, A"x4L'x}/16" tube steel was : inadvertently substi tuted~ '*
forJ4"x4"xl/4".a '
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Vil: COR'RECTIVE ACTION: -
S&L revisw of all LaSalle Hangers using 4"x4"xl/4'? tube steel -
showed that the maximum stress (using 4"x4"x3/16" TS) is 14,267 psi which-is less than the Scl design stress value of 18,000 psi.
Therefore, 3/16" thickness for 4"x4" tubing is acceptable (Reference S&L letter dated 10/14/82 R..H. Pollock to A. Kempiak). S&L will
! revise drawing M-1538 shts. 20 and 76 to indicate the thickness j of the installed tube steel as 3/16". .
PREPARED BY: J.W. Gieseker
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