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', ATTACHMENT 2 In Reply Refer To:
Dockets: 50-445 50-446 AoR 2 0 19M* Texas Utilities Electric Corrpany ATTN: M. D. Spence, President, 1 %CO Skyway Tower - 400 North Olive Street Lock Box 81 Dallat, TX 75201 Gentlemen: During the course of public hearings in the captioned proceeding, . Mr. Henry Stiner alleged that " plug welds" had been perfortned without proper approval in the south yard tunnel and in the north table spreading room. In preparing NRC Staff Testimony on this issue, Mr. Gilbert of this office undertook personal observations in these two areas. The results of his observations are discussed in Addendum to NRC Staff Testimony submitted to the presiding Atomic Safety and Licensing Board on April 24, 1984 (copy of Addendum enclosed). , e As indicated in this Addendum, it appears that there are three supports with indications of " plug weld" repair of misdrilled holes. However, the applicable hanger packages obtained from the QA vault showed no indication in the documentation that such repair work had been authorized or had been-carried out.
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We request that-within 30 days you provide your response to the following:
- 1. As a result of personal observation by a member of your QC staff, identified by name, de you agree that there are indica-tions of weld repair on su;; orts CTH 8057, CTH 8058, and CTH 8073 in Unit 2? If not, provide a detailed description of observations, including a description of efforts made to remove the paint so that the base metal (and any repair) would be exposed. If you conclude that there are surface indications but that such indications are nct alated to weld repairs, provide your basis for such conclusion, including any necessary supporting documentation..
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8606120441 860604 - w %r PDR FOIA GARDE 86-A-20 PDR
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I Texas utilities Electric Company !
- 2. If you conclude that ther( are indications of weld repairs en any one or more of these supports, provide your assessment of whether these repairs were properly approved and properly j
inspected in accordance with applicable procedures. If you conclude that these weld repairs were carried out in full conformance with all applicable procedures, provide a detailed basis for your conclusion along with any necessary supporting i documentation. .
- 3. If you conclude that these weld repairs were not carried out in accordance with applicable procedures, provide your assess-
' ment of the need for corrective action for these welds and ;
your plans for determining the existence of other weld repairs not properly authorized.
- 4. For any weld repair for which full conformance with applicable procedures cannot be demonstrated, explain in detail why this deficiency was not recorded and corrected as part of the appli-
! cable QC program and why this deficiency was not identified and corrected by the applicable QA program. .
Should you have any questions regarding this matter, please contact Messrs. D. M. Hunnicutt or L. D. Gilbert.
' Sincerely, i Original Signed by:! ^
Pr.ul S. Check , { ' RichaIrdL.Bangart, Director Region IV Task Force
Enclosure:
As stated i cc: Texas Utilities Electric Company h Texas Utilities Electric Company B. R. Clements, Vice ATTN: H. C. Schmidt, Manager ATTN: President, Nuclear Nuclear Services l Skyway Tever Skyway Tower ? 400 North Olive Street 400 North Olive Street Lock Box 81 Lock Box 81 Dallas, Texas 75201 Dallas, Texas 75201 d
9/11/84 Record of Telephone Conversation To: (A11eger) From: G. Thompson l Telephone Number: Date: September 10, 1984 Time: 8:10 to 8:35 p.m.
Subject:
- 1) Clarification of welding allegations
- 2) Clarification of allegation AH-7' related to welding of magnetized steel. j The substance of the questions addressed to responses ,
are as noted: s s Subject #1
- 1. Were you ever asked to perform welding outside of approved procedures?
Yes. .
- 2. What kinds of unauthorized welds did you make?
a) Plug welding of misdrilled holes, b) Making flare bevel welds'with excessive root gap by Knocking the flux.off a coated electrode and laying the core wire in ! the gap to fill it, thewelding over it. - c) Making " downhill" fillet welds on pipe hanger I-beams instead of
" uphill" welds. Nonr. ally I used a 3/32" diameter electrode to make 5/16" fillet welds.
. 3. Did you ever " plug weld" mislocated holes which had the edges beveled.
No. , l 4. There are several categories of hangers or pipe supports (ASME Class 1, Class 2. Class 3 and B31.1 pipe supports, categories 5 and 6). Which 4 of these types did you . weld.on? All.
- 5. What welding processes did you personally use to weld hangers?
Shielded metal-arc welding . l
- 6. Did you.ever use gas tungsten-arc welding?
Never. I waen't qualified for gas tungsten-arc welding. 9 L
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-d 9/11/84 Record of Telephone Conversation
- 7. When you lay down a stringer bead of good configuration using shielded metal-arc welding, how wide is it in tems of weld rod diameter?
About 2 times the rod diameter.
- 8. Did you ever weld a support attachment to an ASME pipe?
Yes. I welded lugs and stanchions to ASME pipe using shielded metal-arc welding.
- 9. Do you remember what weld procedure specification you used for welding such attachments to ASME pipe?
I think it was WPS 11032. ,
- 10. What were your welder's identification letters? <
7*c CBNU.
- 11. Do you recall a " pipe line segment" which had to be " completed by 5:30 pm" or the crew was in trouble?
! Yes.
- 12. Was the welding related to the pipe line or to hangers for this pipe line?
l To hangers. l 13. Can you identify the pipe line? t ! It is in the south yard tunnel. Walking into the tunnel to head south, ! you take the elevator to the 790' level. Make a right turn. Go to the l ladder near the end of the tunnel (where the elevation changes from 790' i to 800'. Go up the ladder. At the tcp at about chest high on your right you will find a 3" or 4" pipe near the center of the aisle. This is the pipe line in question. Supports for this pipe are made of tube l steel and channel iron.
- 14. According to your testimony, you can " plug weld" a l' 1/4" diameter l hole in 2" thick plate with 2 electrodes in 2 minutes. The volume of i
this hole is such as to require much more than two electrodes, a) What size electrode did you use? l The largest electrode I ever welded with was 1/8" diameter. The two electrodec is just an estimate. It could have been 5 electrodes, i I 0 e
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- ,II .
. 9/11/84 Record of Telephone Conversation b) Did you completely fill the hole? -
No. It was capped on either face and had slag and an air pocket
- in the middle.
- 15. If you " plug welded" a mislocated hole and the new hole drilled in the correct location over-lapped the weld - repaired hole----
You had to weld repair the side of the new hold because the " plug weld would have defects. Subject #2 ~
- 1. Did you recall a . scrap I-beam which was magnetized and used to repair ;
a hangar? Yes.
- 2. Was this hangar in the north pump room?
No. It was in the south yard tunnel at about 820' elevation.
- 3. Who at the NRC did you make aware of this incident?
Don Driskell
~
f 4. Who at the NRC told you that the hangar had been scrapped? t ! Don Driskell and Richard Herr told me it had been removed because of j design changes, f i b i l l
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- AISC Speci6c tion Cc.meetions of all beams and girders to columns and cf any other I l
ber.ms and ;;irders on which the bracing of cobimrm is dependent, in s'ructurcs over 125 feet in height. Roof-tms2 splices end conncetions of trusses to eclumns, column Rivet or Bolt splicca, colunm br::ing, knce bmcc3 and crane supporta, in all Dir.mster et=:tures carryin; cranes of over 5. ton capacity. (Inc'.M A. Connections for cappe:ts of runmn: machinery, or of other live ( lo:is which produce impact or reversal of streca. l, ! Any other connectier.s stinul:ted en the design plans. o, ! In an other canca feld connections may be medo with A3')7 bolte. ! Pcr the .n::ncss oicis Sectica, the hei ;ht of a tier structuro she' .d cc t: :>- ; l cs t[e vertical disten:e fro:n the curb level to the highest pomt of the rce; . I bearn s, in the caso of tlat roofs, or to the mean height of the :;abic, m the con c,. g ? roofs having a risa cf:ncra than 2,3i in 12. Where the curb ievel hes net be:*. g gg c:tabli: lad, or where the structuro dces not adjoin a street, the mean icv :1 u, the cd.icining knd s;ud! be used instced of curb level. 14ntho 2s~, m'y b.-
- The:e may be 1!i.in. at the end j c .cluded in computhg the height of structure. ** All e4e distences in this cole
- point whera stre
- s does not excec.1 elemein.
' SECTION 1.13 RIVETS ANO DOLT 3 . { 1.10.1 Eigh Strength U:Its 1.16.6 Minimum Edge Distat I~ce ofhi:fa ctrarigth t<,1!0 thall confamn to the pmisions of the 5.,rel 1.Iu..u. .,1 In connections tions [s.= Structumi Jo;;tts Using ASTM A325 or n490 Bous ca apwy,. _. the center of tho end rivet to llu the Resear:11 Council on Rivcted and Ec1tcu dtructura! .,cm_ _ < g A.t.19 bolta no creater than 112 menos in amater may e c 1.y , ~ the thickness of the connected r ASTM A025 boita, provided that a ened - t bolt he:d. however, nuts used va, . distance for rivets in double she: ments of ASTM A005. 1.16.G.2 In bean.ng. tyre er are not more than two high strc: 1.10.2 ,.Tecttra Bearing Area
- m. . of stress, the distance from the cc The effective becring cres of rivers and belts shall be the dhmet:r ' -
nected part toward which the etr plied b/ the icnrth in berrin;. except that for countersuch rivets sed . for single shear or 2A.C/t fo-r.:df t.22 depth of the counterrink ci.all be d: ducted. cross.sectionc! crea of the bou, t C is the ratio of specified mini-1.13.0 I.ons Grips specified minimum tensi!c :tren s Elvc ts and A007 bolts v.h!:h cc:ry c:lculatcd ctre:3, On:1 the @- 1.10.G.0 However, the end l exc:cds 5 diaztem=, t.ha;l haya their ==nber inercased 1 p:::4r.t. . . ' j 1.16.G.2 may be decreaced in su:h additics:13 is. inch :n the g:ip. that permitted in S:ct.1.5.2, but fled in Sect.1.1G.5 r_nd need not . l 1.10.1 M'n8mn:1 Tidl. fastenerr l ca mini =r.= Otanco batweea centers of rivet ==d to;t holes s.. 1.16.6.. When r:iore then L notic:s then 2C ti.nes the n:=ir21iliarnter of the rivct er bolt Ir.:t prch stress, the pro--f::,one of Scct.1.1( n., t,.
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l 1.10.5 f41r 5 um Edge Sistes:e_ 1.16.7 Maximum Ed;o E!:ts-l The maxi:num distance fro: l The mmimun: distanco fecm the center cf a rivat or bolt heio to crm nearest edge of parts in contact w ut. S in design or in prepsratica of shop drawings, shall to that pv. neas of the plato, but shall act exe ! Table 1.1G.5. i l t - s l .-_.4 _ h r _- .. .. c. ( ! > ~
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Struct:aul Steel for Buildings . $.43 cr: to column and cf any cther TABI.E 1.13.3 2 '.rs:ing of eclumns is dependent,
..i-ht, '"-S.ura Ed. a Dhtanes f:r
; ci t.a::es to c;;ur.ns, celumn Punched. R:amed er Drilled *-Icles
. Rivet or Bolt (Inchw a:. c:.s and crano supporta, in all p % g. ,
~;r Lion capacit~. (Ing3) . At P.cM Edges of at sared Qig machir.ery, or ci other live Pht s, Ehapes or 3srs 508 rever:al cf stre:2. or Ggs Cat Edges a
.i tho daign phn:. 3 M ::
S raadt with .*d"'co!?c. M IM M M IM 1
't of a tier str"eluro chnil be t .han H 1H* 1H 13 tho highest point of the roof 1 IM' 1M i hei;ht of the r,abic,in the casa of IM 2 1H iVhere the curb invei has not been 1M 2M 1H adfria a stroot, the raean lovel of Over IM 1H X Dismeter 1M X Diameter curb 1: vel Antho nes may be
- T2.cse may be 1M.m.. at the ends of team connection n-"-,n
** All edge distances in this column may be reduced M.is. when the hela is at a point whera strecs does not exceed 257 cf the n enum sIlovted strces in the olement.
1.16.6 Minimum Edge Distanco in I.ino cf Stress I o the provi.ticas of the Spre!!ca. 1.18.6.1 In connections of ten: ion members, where there are not more M or A490 Scl's as appr>vcel by than two rivets in a line para 2el to the direction of stress, the distance form
!!ed Structura! .It, lata. ASTM the center of the end rivet to that and of the connect:d part tortard which ila.nator may be used in lieu of the stress is directed ahn11 be not Ita than tha crea of tha rivet divided by sd washer la hutaded under the the thickness of the connected part for rivets insingle shear or twice this t
3 bolts shall meet the require- distance for rivets in double shcar. 1 1.16.6.2 In bearing. type connection: of tenrion members, where there ar3 not more thnn two high strength bolts in a ]Ine parallel to the direction i of stress, the distanc's from the center of the end bolt to that end of the con-l bolts shall be the diameter rnulti- nected part toward which the stress is directed shall be not less than A.C/t for countersur.h rivets r.nd bolta for eingle shear or 2A.C/t for double shear, where A, is the nominal l Jucted. crose. sectional ares of the bolt, e is the thickness of the connected part, and C is the ratio of specified m imum tensile strength of the bolt to the specided minimum tensila strength of the connected part. Sted ctre:s, cud the W.p of which
.cr inercased 1 percent ac; each 1.16.6.3 However, the end distaneo pre:eribed in Sects.1.10.6.1 and 1.16.G.2 may be decreased in such proportion as the factener str:ss i: Ie s t.aan that por=Itted in Sect.1.5.2, but it shall not bo Icsa than the distanca speci-i fled in Sect.1.16.5 and need not exceed 1M times the transverso :pacia; of l fasteners.
i i ef rivet and bolt holes shall be l :lths rivct or bolt but preferably 1.16.6.4 When more than two fasteners aro provided in the lina of I l stress, the provisions of Sect.1.16.5 shall govern. 1.16.7 Maximum Edge Distance i f a rivot or bolt hele to any edge, The maximum distance from the center of any rivet or bolt to the l hu-ings, shall be that given in nearest edge of parts in contact with one another shall bo 12 times the t!'ich-l neae of the phte, but shall not exceed 6 inchee. l <
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P, .
.. h Issue Reference Lead
- 9. Downhili welding results in lack CASE 919, pp. 15-16. -
of penetration, entrappment of slay, lack of fusion. Downhill welding is performed for welding on plate 1" or more. thick, as indicated in Attach-ment B to CASE 919. . PLUG WELDING .
- 1. 1982 AWS DI.1 Code. 9 3.7.7_recomends Tr., M .
not to use " plug welds " .
- 2. ll inch diameter hole on. two inch T M 9.
thick plate would require 2 minutes to , weld, without cleaning the weld passes. -
<3. alleges that he performed Tr. 1 'IC 01u0 wel s which were not authorized-by weld engineering, in part due to production pressures.
6% 2.t.
& 4. .welded misdrilled holes .QI '22 3 6 0;
[haut w- t inspection of the welds. #;0DTM , Some were in the north cable spreading tt1905 I N room, which he worked in for " weeks." . 5. welded misdrilled holes W 11,0fr: "I C-l the ca e spreader room. V
% , ! W.
- 6. welded misdrilled o es in the south yard tunnel. 7C-r7 Only' two rode ranoired to "olue weld"
&~ ~ D pf Cn w*'N i
a 11" Tote in a 2" thin pute. 4' '10.1
^ ::. 2 99,
,8. M repaired misdrilled holes CASE 919, p.22. nf C-by welding without chipping out slag, and without oroper authorization. Any .
defec'ts in the weld were hidden from visual inspection by grinding the weld, and spraying the metal with gray primer paint. .,
,,, 9 . infers that there was no au orizat on to r< pair the misdrilled Of.::
CAS ___, M '7e_ holes since he hac other welders / W_E,.919, p. 22; , foremen watching-out for QC inspectors. U . F0lA-85-59 .
?0y
. ,. . /h ..
l
i
. . , - . , , l
- Issue Reference lead
/10. . ' repaired misdrilled holes hn " numerous occasions" by welding, CASE 9 g p. 21-22, y,( but chip d out slag with chipping T.jL,9,ta,.asa.
hamer. g g indicates that these rep ir we ds were also done without proper authorization, s 11. allege hat F M. directed .
,y,, o G.I" db ,
to " plug wel in violation of procedures on fabrication tables / M* luc 3Tir6 the turbine building. V WELD R00 CONTROL I WFML for Hanger SI-1035-032-535R indi- CASE 667, 1. cates that approximately 75 weld rods pp. 40-41, were utilized in the fabrication of Tr. 4164-65. this hanger, which is an overly larga amount. This indicates that weld rod - control program is not functioning.
- 2. nd two bundles of weld CASE 667, p.41, ds elieves were abandoned. Tr. 4165.
No corrective action was taken on this
] C. item.
- 3. wrote an NCR on a welder CASE 667, p.42, who tai e to turn in all unused Tr. 4166.
d C. weld rods.
- 4. Rod shack employees do not count used Tr. 10,636-640.
weld rod stubs, but mathematically determine the amount of used or - i damaged rods. This occurs because i there is a large number of welders checking in weld rods at the close of the shifts.
- 5. Tr. 11,128.
M ) used rods that had been qC exposed or 2-3 days in welding at
" chiller room."
- 6. (phon.) used weld rods that Tr. 11.128.
%C, had been exposed for 2-3 days in I welding at the north and south yard .-
tunnels. .
. i &+
1
Figure 2.7-1 Pogo 1 of 7 Tief, FILE, ARMS.CJS COMANCHE PE4Ka@gEAM ELECTRIC STATION DESIGN CHANGE /D85f4N DEVIATION AUTHORIZATION N I b 1 F ILL) (WIIIXNUll BE INCORPORAT In DESIGN DOCUMENTS. AUTHORI~ATION NO.__ 1828 dam rt ' SAFETY RELATED DOCUMENT: X YES NO 1 1. DESCRIPTION OF CHANGE /RmtIKIIGNXtEARIIICAT12N ' A. APPLICABLE SPEC /DR3JURIStDEMI 2323-SS-16B ii 0 5-12-75 - E Issue Date
~
B. DETAILS Field fitun nroble exist for erection of sttuctural steel to h mislocated concrete inserts. SOLUTICN: The following paragraph should be added to the specification:
"Section 9.5.1: Structural steel fitup to concrete inserts should be handled as
~
. [-)
follows: Inserts which are to be used for the connection of structural steel b)k ,i should be mapped and conpared to the hole pattern on the connecting elanent.
'j' t-If misalignment exists, the hole (s) shall be plugwelded and redrilled with .I adherence to AISC specification sections 1.16.4 and 1.16.5. I If the requirements of section 1.16.4 and 1.16.5 cannot be met, the connecting element should be removed and re) laced with an appropriately sized element." FOR OFH2 ANu , , , , , , , , , , '.
OlGINEEMG wt unug , , ,m,,,
- 2. SUPPORTING DOCUMENTATION JUN 071978 ,
GIF-2720; DAX-434; 'IWX-1558 ; 1WX-1529 E C f, i V E
- 3. SIGNATURES OM/ss 6-6-78 A. APPROVED BY:
% nupreserptative / N-W Date B. APPROVED BY: 8 W 6/77 Repponsib g Engineer '
~Date 4
STANDARD DISTRIBUTION TUGC0 Site QA 1)
' i G4H New York 1)
G4H Dallas 1) B4R Field (Original)(1) B4R Site QA (1)
~ . . .
F01A-85-59nn m.
C d ogc q M ,' h .k
/
Figura 2.7-1 Pago 1 of i f COMANCHE PEAK STEAM ELECTRIC STATION '. ' $ .' ,'. - [!
- c-
- l
, ,* DESIGNCHANGE/DESIGNDEVIATIONAUTHORIZATIOgg.Udd ! . SPEC. FILE
. *(WILL) DIIEE:SIII)BEARMS CS INCORPORATED AUTif0RIZAT C
-^'"
M 2087 d IN DESIGN DOCUMENTS. NO SAFETY RELATED DOCUMENT: X YES
- l. DESCRIPTION OF CHANGE /DEMIE0031(rrmsIERTIEN A. APPLICABLE SPEC #DWO@0000EEEEX 2323-SS-16B 0 5-12-75 Rev. Issue Data B. DETAILS nmia<i revisinn to Raetinn 6.4 to pamit welding nrneadiirat that maar nr ove ,.A aws n1 1 r m iir = nte en k,inc a v2+h,e chon v.<ni 14fvin, a nrne.anr.
i S0ttfrION: Revise paragraph 6.4 to read as follows:
" Welded construction shall conform to AISC Specificatim for Design. Fabrication j and Erection of Stnictural Steel for Buildings and AWS D1.1. Welding confoming to other codes or standards such as ASME Section IX may be used on a case basis upon j, ~
certification by the G8H field weldine engineer that they are eauni or exceed the enmel find prneedvire " l 2. SUPPORTING DOCUMENTATION 20R 0=CE AND 1 l , DC/DD-190 ET GINEERINC ljRF Old Y
- 3. SIGNATURES OBJ/ss 7-13-78 A. APPROVED BY: f/ 7--A.9-2d
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A~ DATE Vendor Duly Authorized Representative j (Title)
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<g* I i $* lpg , p' g ! 1 l2 g - y. yp i l. -- I l' l- j:- g ; q "' *s. ' N s , h,k m .f 5 o. Ns)l u r. . . -.. .u . . ,y. . l s . t J 6 FGlA-85-59 n,e _ m s . ~ &V A Ov1 :: TEXAS UTil.lTIES GENEltATING ..u .u xa- w COMI'ANi' .. ., .,3.. . ....... .......... i....i.......-> s .s May 29, 1984 L"'!'P ,.S',','.L?.S.....-. TXX-4183 :.y 4 . *4 *; 33 Richard L. Bangart Director, Region IV 5.([.2 i . Comanche Peak Task force ' U.S. fluclear Regulatory CommissionOf Docket flos. 50-445 50-446 fice of Inspectionfa 611 Ryan Plaza Drive, Suite 1000 df l Arlington, TX 76012 - Letter to Michael 0. Spence (4/30/84) ,. Plug Welds in Unit 2 Spread Room. File tio. 903.9 {. ,. t
Dear Mr. Bangart:
h t there are indicalfon2 fI ! - Based on examination by David Holmgren, TH-8073. These indications 4 01230 weM-84agree"01231, t a i
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of welded repair on CTH-8057, CTH-8058, and C -- , and M-84-01232 respectively. h t these repairs were 2. There is no documentation available to indicate t aith applicable pro approved or properly inspected in accordance ir, w TUGC0 will - 3. To assess the extent of this type of unauthorized l dated April repato 24, those des ; perform a visual inspection, using methods lsimi tray ar hangers by Mr. Gilbert in the Addendum to fiRC Staff T d res. in the Unit 2 Cable Spread Room. appropriate, in accordance with established i proce u s and subsequent f d 4. A program was in place indicate Our records which required that thisrepair program instruct was beingon ' QC inspection. We do not know why thisOurdeficiency QA program did was not detec in most instances. the only way to have and dispositioned per established QC procedure ade by Mr. Gilbert. discovered its existence would ld have led QA type of examination of these todividual support i l personnel to take these these extraordinary steps. Very truly yours,
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G%og 4 iW9 3 TEXAS UTILITIES COMANCHE PEAK STEAM ELECTRIC STATION GENERATING CO. NONCONFORMANCE REPORT (NCR) M-84-01230 R.1 UNIT omg ansmua w STRUCTURE / SYSTEM ITEM / COMPONENT TAGhD NUMBER LCCATION OR ELEVATION RIR NO. 2 ECB CTH * 'H-8058 Rm. 134 El. 807 N/A NONCONFORMING CONDITION CTH-8058 has two areas in the web which appears to be misdrilled holes which have been plug welded. The extent of rework Carnot be determined due to grinding and paint. d There is no documentation in the vault for plug welding. z
$ 6'3" Sou *i of 8-A E 6'4" West of D-A g Elev. 823'0" 3 Hold tag applied P
cr 2 0 e REFERENCE DOCUMENT. QI-QP-11.10-2 REv 24 ,,,3 3.1.6 REPORTED BY: 0 David L Holmgren 4 , $( 84 OE REVIEW / APPROVAL: DATE: w O [. s /,
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ACTION ADDRESSEE DEPARTMENT C. Thomas Unit 1 Task Force DISPOSITION: REWORK REPAIR XX USE AS IS SCRAP
- 1. Acid etch areas in question to find extent (if any) of weld material. Quality Control to witness. v. Me- 7-J
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are to be used as is, 8 l e 1 2 9 13 l e x 7 OE REVIEW PPRO L: DATE: w O We /. h ]/b/WY DISPOSITION VERIFICATION & CLOSURE: DATE:
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COMMENTS: Rev. 1: To revise disposition.
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M-84-C1232 R.1 h ._c + Cer> Ve hff- Toidet Gea
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uni r STRUCTURE / SYSTEM ITEM /COVPor.ENT TAG'/ID NUMBER LOCATION OR ELEVATION RIR No. 2 ECB CTH CTH-8057 Rm. 134 El 807 N/A NONCONFORMING CONDITION CTH-3057 has two areas in the web shich appear to be misdrilled holes which have been a plug welded. The extent of rework cannot be determined due to grinding and paint. E There is no documentation in the vault for pulg welds. z O 6'3" South of 8-A 6 6'4" West of D-A Elev. 825'2" E p Hold tag applied W O - b C REFERENCE DOCUMENT. 01-0P-11.10-2 REv 24 PARA 3.1.6 REPORTED BY: DATE: David L. Holmgren 4 23 ,84 f CE REVIEW / APPROVAL: DATE: w O gj ACTION ADDRESSEE 'DE/ARTRAENT , C. Thomas Unit 1 Task Force DISPOSITION: REWORK REPAIR USE AS IS SCRAP 1
- 1. Acid etch areas in question to find extent (if any) of weld material. Quality Control to witness. V. A 7-2 -N
$ 2. After areas have been identified, QC is to perform a-thT. inspection, if acceptable
$ the welds are to be used as is.
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e 1 7 i$W QE REVIEW APP OVA DATE: m O AV- /. DISPOSITION VERIFICATION & CLOSURE: 7 / 3 /IY DATE: l / / COMMENTS: Rev. 1: Issued to revise dispositionF0lA-85 59 - . /h2./I p.P e*
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. . . . ..a~ -.. - - .. :. --. .-- .....a Texas . . E3 CCMANCHE PEAK STEAM ELECTRIC STATION GEN:=AT.Nc Co 'NCR N2 NONCONFORMANCE REPORT (NCR) ,
M-N-old* L ! UNaf muCTURE,5YSTEM ITEu/CCMPONENT TAGnD NUMSER TOCATION OR ELEVAT.ON RsR NC I } f ff8 (7W F M At>C7 ft>7 PM / W sf NCNCONFCL NG CONOITION - f d /SS$*N YD 8$ M/.$.OA/44dd W84db WW/(W WAl$ $$$d EdtVQ4(.sL'*'O-db. 7WS fx7E' d7 QF ZEx10Zs< cAdc/0t'~ df Mrf/d/dfD De/d *< c> l h tjfid/.9/x/Q ,<x/b AWrdi~. fWCM /3 dQ )DCcA*ff,<./7A t r"/CdN/ NfC l 8 /de/x.7 fox Awgauas d '3"Jontr' W 8-4 i. h 6 %f" A./f S 7 D F h-A h h a.
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M-84-01231 R.1
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TAC /ID NUMBER LOCATION OR ELEVATi(eN RIR NO. , 2 ECB 'TH CTH-8073 Rm. 134 El 807 N/A I NONCOi' FORMING CONDITION CTH-nJ073 has two areas in t.ie web which appears to be misdrilled holes which have been plug welded. The extent ? rework Cannot be determined due to grinding end paint. g There is no documentation .n the vault for pulg welds. z z 11'6" South of 8-A g 2'5" West of C-A w f
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. REFERENCE DOCUMENT. 01-0P-11.10-2 Rev 24 papa 3.1.6 REPORTED BY: DATE: David L. Holmgren 4 ,23 ,84
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OE REVIEW / APPROVAL: - - - DATE: j w O ACTION ADDRESSEE
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DEPARTMENT C. Thomas Unit 1 Task Force REWORK REPAIR USE AS IS SCRAP
- 1. Acid etch areas in question to find extent (if any) of weld material. Quality Control to witness. V. 4e ^3 W
$ 2. After areas have been identified, QC is to perform a +.T.. If acceptable the welds g may be used as is.
E o z ' o , O s ENG. REV1 /A P VA DATE:
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COMMENTS: Rev. 1: Issued to revise disposition. i FOIAvvnun - - g mn -
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. ACID ETCH It!*ECTION PEPORT PROCEDURE:
, Welding Engineering Guidelines Fc Acid Etching and its Applications UNIT: 2 LOCATION: dC G . .s t '- SYSTEM (. ).i, k. h.,~ cfA99
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. CCMANCHE PEAK STEAM ELECTRIC STATION
_,,4e <_ { f GENE 4A?iNG CO. NONCONFORMANCE REPORT INOFi . t/fd-R'46/ ~h/ i t l l j UNIT StauCTupt,5YSTEM ITEM /CCMPCNENT TAGa0 NI.;MBEA LOCATICN OR ELEVAT.CN ' RIR NC. 4 ! g-r sex erer /rx ro73 2c7xx/_W ! NCONFORMING CCNCITION _ }
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. E O DA*b*idQ WES//fd" " r i I MEFERENCE DCCUMENT: N/ ~ d/ /d /O
- REV 1 PAAA I /. d REPORTED BY:
DATE: IL/rl//D fd4M(S$ W/B/W CE REVIEW / APPROVAL:
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CATE: O ACTION ADORESSEE ."' OEPARTMENT
- i s j OISPOSITION
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TEXAS UTILITIES GENERATING COMPANY SETWAT Towsm
- 4ee NORT3t OLtVS STREST. L.B. St
- DALLAS, TEXAS T3304
- 6. c. rena.
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August 13, 1984 ' TXX-4259 Mr. Richard L. Bangart -l'- - Director, Region IV - ~
. Comanche Peak Task Force -
U.S. NtC Office of Inspection and. Enforcement 611 Ryan Plaza Dr., Suite 1000 Arlington, TX 76012 COMANCHE PEAK STEAM ELEC1RIC STATION 4 PLUG WELDS IN UNIT 2 SPREAD R001 *
~
ADDITIONAL RESPONSE FILE NO: 903.9 t i
Dear Mr. Bangart:
By letter dated April 30, 1984 from R.L. Bangart to M.D. Spence, the Nuclear - Regulatory Comission ("MtC") Staff requested responses to questions relating + to an inspection by L.D. Gilbert (NRC Staff) of approximately 87 supports in the Comanche Feak Steam Electric Station ("CPSES") (56 supports in the Unit 2 cable spreading mom and 31 supports in the yard tunnel). During the ' l inspection, Mr. Gilbert discovered indications of weld repair of misdrilled holes on three cable tray supports in the Unit 2 cable spreading room. In a letter dated May 29, 1984 from B.R. Clements to Mr. Bangart, Texas Utilities
- In the response TUGC0 Generating Company ("TUSC0") provided its response.
- f. indicated that it was unable at that time to locate documentation which indicates that welding of misdrilled holes on the three cable tray supports had been properly inspected in accordance with applicable procedures. To determine j
the extent of repair of misdrilled holes in the Unit 2 cable spreading room for which such documentation could not be located TUGC0 comitted to perform a l " visual inspection, using methods similar to those described by Mr. Gilbert in
- j the Addendta to MtC Staff testimony dated April 24, 1984, of a statistically representative sample of the cable tray hangers in the Unit 2 cable spreading room."
By letter of July 23, 1984 from.Mr. Bangart to Mr. Spence, the NLC Staff requested that TUGC0 provide (1) "the detailed sampling plan and the procedure (s) which describes your inspection techniques for assessing the ). j l F01A-85-59 s k ll S$~Uf$QQ(a( - A coststas or TERAS tritLastce ELucinte coaeraxt y[h j - _ ' .. , ' ~
- mn
. . f. TXX-4259 August 13, 1984 extent of unauthorized weld repairs" (2) a completion date for the final report of the inspection, and (3) actions taken by TUGC0 to prevent recurrence . of unauthorized weld repairs. TUGCO's response is contained in the attached . .- . report. ?'
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Very truly yours, j .gt - L.F. Fikar LFF/bni cc: T. Ippolito . R. Martin e O e p+ -e emme
_ - . . - ~ -- . _- 1
- APPENDIX A TXX-4259 Sampling and Inspection Methodology 7 To' conduct the sampling, the Unit 2 cable spreading room is divided into five >
roughly equal areas with one Quality Control ("QC") Inspector assigned to each area. Each QC Inspector is directed to inspect 60 cable tray supports in the . .
' assigned area assuring that the supports selected represent a random sample .H fran all locations (including all elevations) within the area. A Quality #:je 7' Engineering Supervisor monitors the inspection to assure that the supports are -;
selected on a random basis and represent the spectrum of supports at all locations within the room. The supports inspected are recorded. $ Prior to conducting the inspection, discussions are held with each of the five QC Inspectors regarding the appropriate method of inspection, e.g., a detailed
- examination of all exposed surfaces of each support by holding a light at an .
oblique angle to all surfaces in order to locate repaired misdrilled holes. ; s Using this technique, changes in the mill finish of a cable tray support (which would be present if any welding occurred) would be clearly visible. - The Inspectors are directed to mark each suspected area and record its - location. Upon completion of the initial field inspection, a quick documentation search is conducted to detennine if QC inspections have been .- i conducted on the suspected areas. For those suspected areas for which appropriate documentation is not readily available, the paint is renoved to e detennine if the irregularity in the mill finish is due to a repair of a misdrilled hole. If there renains a questions, the surface of both sides of '.
- ths suspected area is acid etched to determine conclusively whether a repaired .'
; misdrilled hole exists.
After a final determination that supports exist on dich repairs of misdrilled ! holes have been perfonned, a search of appropriate doctanentation is made to i detennine if required QC inspections of the weld repairs of such holes are i documented. For any cable tray supports which contain repaired misdrilled holes for dich appropriate documentation does not exist, an NCR is prepared ]
- and resolved in accordance with appropriate procedures.
I 4
4 o August 13, 1984 TXX-4259 ATTACittENT PLUG WELDS
- 1. Detailed Sampling Plan and Inspection Techiques .
.ff.-
The sampling plan consists o'f inspections of 300 of the Thisapproximatley sample size 2220 -..;. cable tray suppocts in the Unit 2 cable spreading rcom. . provides assurance at a 95 percent confidence level with a 0.025 error
- band that the results will be reflective of all cable tray supports in the The detailed sampling and inspectinn Unit 2 cable spreading room.
- methodology used in the inspection is attached hereto.
j
- 2. Camaletion of Inspection Report .
In accordance' with a request from the MtC Staff, completion of the inspection report has been delayed pending Staff coment on the inspection TUGC0 should be able to procedures set forth in paragraph 1, above. provide the inspection report two weeks after the Staff (Ifmajor completes its . e review of and coments on the approach specified above. modifications in the approach noted above are required due to Staff ;- coments, final completion of the report may requint an additional 1-2 weeks.)
- 3. Action to Prevent Recurrence ;
[ , In that the problem, if any, which must be corrected will not be fully known until after final completion of the inspection report noted in
!- paragraph 2, above TUGC0 cannot fully respond to this question at this time. At this point, from a design standpoint the problem does not appear -
i , to be dether the weld repair of misdrilled holes was properly authorized. Design Change Authorization ("DCA") 534_7 (in effect before cable tray supports in the Unit 2 cable syeading room were erected) authorizes repair of misdrilled holes on cable tray supports in the cable spreading room. Further, DCA 5347 provides instructions regarding which Indeed, unusedto pursuant holes in cable tray supports need to be repaired. this DCA, based on the size and location of the misdrilled holes . d identified by the Staff in their inspection, none of the holes were(It shoul ll required to be repaired in the first instance. subsequent QC insp a a showed no rejectable indications.) I At this juncture, it appears that the problem identified by the Staff may t be limited to QC Inspectors not always recording that they inspected weld While QC Inspectors have always been required 4 i repair of misdrilled holes.to inspect all welds on each support (includin Il holes), in the past they were not required to note " tray support were repairs of misdrilled holes. specifici11y list these repairs, others may not have. L 1 on. .em.
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TXX-4259 August 13, 1984 On November 10, 1980, Revision 2 to QI-QP-11.10-2 was issued which required all QC Inspectors to document specifically all inspections of weld repair of misdrilled holes. Applicable forms were modified at this time adding a specific section dealing with misdrilled holes. QC Inspectors were instructed regarding use of the new forms. In sum, while it appears that the problem, if any, raised by this issue may have been corrected, it is premature to make a judgnent until after final completion of the inspection report. Finally, to be absolutely certain thc.t all QC Inspectors are clearly aware of the need to document such inspections, the need to document these inspections will be reinforced in meetings with QC
- Inspectors and welding supervisors.
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[%) S D L i - 75' Appendix A: Appendix B: Plug and Slot Welds Effective Throat Al in making plug welds the following technique may "- be used: AI.I For welds to be made in the Hat position the { arc is carried around the root of the joint and then Effective carried along a spiral path to the cc .ter of the hole. j throat fusing and depositing a layer of weld metal in the root and bottom of the joint. The arc is then carried to thed periphery of the hole, and the procedure repeated, fus- , ing and depositing successive layers to fill the hole to-the depth required. The slag covering the weld metal J 1 should be kept molten, or nearly so, until the weld is 1 finished, If the arc is broken, except brieny for chang- a ing electrodes, the slag must be allowed to cool and be r-
- completely removed before restarting the weld.
AI.2 For welds to be made in the vertical position the arc is started at the root of the joint, at the lower Effective side of the hole, and carried upward along a zig-zag path, depositing a layer about 3/16 in. (4.8 mm) thick # throat on the exposed face of the inner plate and fused to it and to the side of the hole. After cleaning the slag from the weld, other layers should be similarly de-
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i posited to fill the hole to the required depth. y 1 AI.3 For welds to be made in the overhead position the procedure is the same as for flat position welding except that the slag should be allowed to cool and f-should be completely removed after depositing each successive layer until the hole is filled to the required depth. Effective blot welds may be made with a technique similar / throat to that specified above for plug welds, except that if , the length of the slot exceeds three times the diameter, e or if the slot extends to the edge of the part, the technique specified in AI.3 should be followed for
- welds made in the flat position. .
. The effective throat ofa weld is the minimum distance from the root of a weld to its face, less any rein.
forcement. The three sket'ches above illustrate this concept. 4 F0lA-85-59 133
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C. hc3eg 4, i W 27 i COMANCHE PEAK OPEN ISSUE ACTION PLAN Task: Plug Welds Ref. Nos.: AW-49, AW-51, AW-55 Characterization: . AW-49 alleged that the alleger performed numerous improper " plug welds" at the instruction of various supervisors. AW-51 alleged that the alleger made illegal " plug welds" in baseplates. AW-55 alleged that holes drilled in incorrect locations in plates, cable tray supports and pipe supports are filled using illegal " plug welds." Initial Assessment of Significance: Allegation AW-55 was investigated and dispositioned by IR 81-12. There appears to be sufficient specificity to warrant followup of these allegations. The safety significance is difficult to evaluate with the available information. Source: Mechanical and Piping Allegations (Category 4) l F0lA-85-59 w -. .
r 1 o . . 2-Approach to Resolution:
- 1. Identify FCAR requirements for pipe supports and cable tray hangers.
f l
- 2. Identify and review Gibbs & Hill specifications, codes and standards; .
j and Brown & Root procedures and drawings for applicable requirements. L
- 3. Review NRC Region IV reports and ASLB testimony for additional information related to allegations.
- 4. Review TUGC0 nonconformance reports and TUEC correspondence related to allegations.
- 5. Interview allegers, if necessary.
l I
- 6. Evaluate allegations for generic / safety implications.
l 1 7. Report on results of review / evaluation of allegations. i I t I l 1
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- 3-Related Open Issues:
1 Using system codes from the tracking system open items, list and identify any open items. .
- 2. Review activities necessary to close or partially close related items.
- 3. While performing physical inspections, examine surrounding system, components, and structures for any apparent defect or indicator of faulty workmanship.
- 4. Complete portion of IE module on welding if it relates to effort made on allegations.
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A' 04v r things that were not by procedure at the plant. He wanted to kno if I had I ever plugged any base plate holes or done any illegal welding out there. l He asked me if there was anything that I did that mi Dht cause told him yes. i serious damage to the_ plant or the people around it. I told him no. I felt that I didn't know that much about the stress of welds, that I'm a welder. l not an engineer. I felt that I wasn't really qualified to say whether it would damage the health and safety of the plant or the people. He asked me about whether or not rod cans were plugged in like they should ! be. I told him that I had seen negligence and improper rod control, and that I had seen them unplugged longer than they are supposed to be. f I He asked me about whether or not I knew ar.f thing about illegal plu0 welds i_n base plates. I told him that I did know about a hole being drilled ir. the wrong place and their having to fill it in and redo it, using illegal weld filler material and without O' being infomed, and then making the hole again in the 522 area. 1 told him about other instances in the north cable spreac room (Unit 72), the 79E, yard tunnel of Safeguards #1. In the Safeguard #1 yard tunnel thert was inproperly installed tube steel. The angles of the tube steel were cut wron; which by procedure would have left too much gap between the tube steel and the base plata. A~ He asked me about non-Q material being used for Q material on pipe hangers and supports. I told him that each crew had their own syrtols and they were able to stamp whatever numbers they wanted to on the material. After 1 talked to the NRC investigator, irnediate foreman, began treating (not sure of spelling), and h rrt/ me differently from what they had before. For instance,6made a 1 o that same day comment later to the foreman of a group _ c. hY*
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i - co i D i WeldlndP.8 ' CONIR0ttED COPY # COMANCilE PEAK NUCLEAR POWER PLANI AttE6All0NS AN0/0R INVESTICATIONS SurmARY , CROSS REF./OR COMPLETION ALLEGER-DATE RECEIVED i IASK SOURCE TRACKING CATEGORY 1-2 SCalEDULE SOURCE
& AttEGAll0N OR CONCERN ACil0N/ STATUS ANON CONFID 8N/DATE SYSTEM NO. LEAD OPEN COMPLETE DOCimENT PAGE AW-47 Deficient welds on 1 84-006 3/7/84 Unit 2 condensers ART A-4, P. 13 Improper use of Ilquid l
AW-48 penetrant 1 ART gwgg v P. 84-006 25; 6 3/7/84 Mut. 5%TtAMAav p.1 AW-49 Improper plug welds IW-4 1 84-006 3/7/84 0. M ART 7 P. 26 ? A AW-50 Pipe hangers - excess 1 A4-83-001 1/24/83 gap in welds ART , A- 2, 3 a i AW-51 Plug welds in base plates 1 , A4-83-o01 /24/83 ARI A-gu, attacIm .V P. 2 AW-52 Pipe welds - excess 1 A4-83-001 1/24/83 heat, consumable ART A-20, P. 1, 2 i , inserts not consumed AW-53 Pipe weld deficiencias 1 84-006 3/7/84 $ M ART P. 28 and Statement, P. 1 8/7/81 1R-81-12 l 4/16/84 P.3, #1 I i AW-54 Numerous pipe supports Inittel dis- 1 8/7/81 IR-81-12 P.3, I were febricated utill*Ing position IR-41-12 ART #1 g
. . weave welds which are ,
prohibited by procedure / l . f g 1 y - i 44 i i ss.-
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, CONTROLLES CCPY CONANCHE PEAK NUCLEAA POWER PLANT i
- ALLEEXIIONS AN0768 INVESTIGlil0NS StsteARY
- CROSS REF./04 TAst COMPLETION ALLEGER-DATE RECEIVED .
SOURCE IRACKING {' ND. AltEGATION OR CONCERN ACTION / STATUS ANON CONFID BN/DATE CATEGORY 1-7 SCIEDULE SOURCE SV51EN N0. LEA 0 OPEN CONPt.1 E DOCUNENT PAGE j AW-55 les are detIIed in various types of pipe Initial dis-position 10-81-12 1 ART ( '
/
supports . cable. tray elIR-81-12P.3.ft supports, and plates, and when they are found , h to have been dellied in the incorrect location , the holes are filled, l , utillaing illegal plug welds AW-56 Welders are not keeping Inittel dis- 1
- their red cans plu90ed position e/7/81 1R-81-12 P. 3 ART #6 In during the work day 18-41-12 AW-57 Concern regarding quality IR 82-14 3 .
of welding of NPS 1 4-45. 7/30/82 2 ARI Testlaony, Industries (NPSI) Pipe Whlp postralats IR 82-14 P. 2,82 \j l AW-58 3 pipe support fillet Initial dis-1
! welds were fit up and position Unknown IR 83-07 welded with eccessive Mi P.3, #2 IR 83-07 Gap i
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$ { .h Yo ' e Draft 2 10/22/84 SSER Category 5 AW-44/CP3' SSER
- 1. Allegation Group: Mechanical and Piping No. 5, Weld Designs
- 2. Allegation Number: AW-44 0
. 3. Characterization: It is alleged that an improper weld design was used 8 to attach Cadweld sleeves (which are used to connect rebar together or to anchors) to the' outer surface of containment structure penetration sleeves for the main steamline piping systems and that the sleeves
; are made of A588 steel.
1 l l 4. Assessment of Safety Significance: The implied significance of the li j allegation is that if an improper weld design was used to weld the l [ Cadweld sleeves to the containment penetration sleeves, the containment penetration sleeves could be overly stressed through its thickness, which could cause lamellar tearing of the sleeve wall. The alleger's concern was that propagation of the cracks could occur s during a postulated accident or any unexpected increase in stress and 1
- cause a catastrophic failure of the containment penetration. sleeves.
.1 i 1 F01A-85-59 hS - - - ,
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A TRT review of Gibb's & Hill drawing '2323-51-0506 shows th'at an anchor plate is welded to the ends of the rebar that are near the penetration sleeves. However, the drawings show that the joint design, in all cases, places the weld and base plate of the anchor in compression. The drawing calls for ASTM A588 steel plate 2 inches thick for the ancho,rs. The Cadweld sleeves were' tack welded to the anchor plate to keep the plate from " floating" on the rebar when the concrete was poured. A TRT review of the welding procedure used to attach the . Cadweld sleeves to the anchor plates found that it met all the requirements of the applicable AWS 01.1 structural code for ! qualification. The TRT also reviewed construction drawings to determine the mate"ial used to fabricate the penetration sleeves. The drawing called for
~
ASTM A537 Class 2 steel for the gussetts and stiffners, and ASTM A516 Grade 70 steel for the main body. l The TRT also searched CB&I receiving inspection records to determine if cracks were found in the penetration sleeve details as the alleger stated. The TRT could find no reports showing that cracks were found in any of the gussetts or stiffners. g T *
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- Th ' TRI interviewed the Chicago Bridge'& Iron " Company (CB&I)" Welding
.and QC superintendent, who was involved with the installation of the rebar at the time the rebar was being put up for Units 1 and 2, and a Brown & Root (B&R) employee from the civil and mechanical engineering I
. group that was assigned to follow the installation of the rebar to determine if the'Cadweld sleeves were welded to the main steam line
- penetration sleeves. Both employees stated that based on their experience and direct involvement, (1) the rebars were not attached 3
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L to* the penetration sleeves, and (2) the r'ebars were cut so that they did not touch the surface of the. sleeve material. )
- 5. Conclusion and Staff Positions: The TRT~conclud.es that the allegation cannot be substantiated. Discussions with cognizant TUEC personnel and inspections of relevant documents could not verify the improper weld joint design alleged. Instead of being attached to any of the containment penetration sleeves, the rebar is attached to anchors ,
o with a weld joint designed to place the weld in compression, and welds L 1 (* in compression are not susceptible to.lamellar tears. Accordingly. - j the allegation has neither safety significance nor generic . l!, implications. j 6. Actions Required: None. ij
- { 8.. Attachments
- None.
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- 9. Reference Documents:
- 1. Gibbs & Hil'1 Orawings 1323-51-0506 and 2323-51-5013.
- 2. CB&I Orawings 32, Revision 5, and 331, Revision 2.
- 3. CB&I nonconfonnance control list and repair checklist and shop release for shipment checklist.
0
- 10. This statement prepared by:
D. D. Hansen Date Reviewed by: Group Leader Date-Approved by: l Project Director Date i l l I I
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3 Draft 4 1/16/85 h SSER Category 5 AW-44/DCP3 SSER
- 1. Allegation Group: Mechanical and Piping No. 5, Improper Weld Designs for Attaching Cadweld Sleeves
- 2. Allegation Number: AW-44 -
- 3. Characterization: It is alleged that an improper weld design was used to attach Cadweld sleeves (which are used to connect rebar together or to anchors) to the outer surface of containment structure penetration sleeves for the main steamline piping systems and that the sleeves are made of A588 steel.
- 4. Assessment of Safety Significance: The implied significance of the allegation is that if an improper weld design was used to weld the Cadweld sleeves to the containment penetration sleeves, the containment penetration sleeves could be overstressed in the thickness direction, which could cause lamellar tearing of the sleeve wall. The alleger's concern was that propagation as cracks could occur during a postulated accident or any unexpected increase in stress and cause a catastrophic failure of the containment penetration sleeves.
F ..h V W s3
/ rl t 30
(
o A TRT review of Gibbs & Hill drawing 2323-51-0506 shows that en anchor plate is welded to the ends of the rebar that are near the penetration sleeves. However, the drawings show that the joint design, in all cases, places the weld and base plate of the anchor in compression. The drawing calls for ASTM A588 steel plate 2 inches thick for the anchors. The Cad' weld sleeves were tack welded to the anchor plate to y keep the plate from " floating" on the rebar when the concrete was poured. A TRT review of the welding procedure used to attach the O Cadweld sleeves to the anchor plates found that it met all the requirements of the applicable AWS D1.1 structural code for qualification. The TRT also reviewed construction drawings to determine the material used to fabricate the penetration sleeves. The drawing called for ASTM A537 Class 2 steel for the gussets and stiffeners, and ASTM A516 Grade 70 steel for the main body. l The TRT also searched CB&I receiving inspection records to determine j if cracks were found in the penetration sleeve details as the alleger } stated. The TRT could find no reports showing that cracks were found i in any of the gussets or stiffeners.
- 1. .
) 1 .
g I h l[ The TRT interviewed the Chicago Bridge & Iron Company (CB&I) Welding and QC superintendent, who was involved with the. installation of the l
' l rebar at the time the rebar was being put up for Units 1 and 2, and a ,
- l. Brown & Root (B&R) employee from the civil and mechanical engineering i group that was assigned to follow the installation of, the rebar to determine if the Cadweld sleeves were welded to the main steam line penetration sleeves. .Both e=ployees stated that based on their experience and direct involvement, (1) the rebars were not attached !
to the penetration sleeves, and (2) the rebars were cut so that they l did not touch the surface of the sleeve material. I l bd' > t
- 5. Conclusion and Staff Positions: The TRT concludes that the allegation cannot be substantiated. Discussions with cognizant TUEC personnel
- and inspections.of relevant documents could not verify the improper j weld joint design alleged. Instead of being attached to any of the containment penetration sleeves, the rebar is attached to anchors l
l with a weld joint designed to place the weld in compression, and welds
- in compression are not susceptible to lamellar. tears. Accordingly.*
the allegation has neither safety significance nor generic i implications. l l
- 6. Actions Required: None..
i I ' 1
- 8. Attachments: None.
A f j ,
4
- 9. Reference Documents:
, 1. Gibbs & Hill Drawings 2323-51-0506 and 2323-51-5013.
I 2. CB&I Drawings 32, Revision 5, and 381, Revision 2.
- 3. CB&I nonconformance control list and repair checklist and shop j release for shipment checklist.
9 -
; 10. This statement prepared by:
i l D. D. Hansen Date 1 a Reviewed by:
~
Group Leader Date I i 1 ( Approved by: Project Director Date l t I l l l t l I t .
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ACCOftDessG TO THE AffuCABLE CS8 OUALITY ASEURANCE tAApeUAL A8eO 88EET CUSTOedER SPECIFICATIONE CLASSIFICATION
' # DATE Cas GA _-
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7 C.H. Gatchell November 9, 1976 I o p TUSI - Jobsite JOB NO. 351195 J.J. Moorhead E C ElV E p G&H - Jobsite . NOV 111976 ECElVE CC.'WCHE PEAK STEAM ELECTRIC STATION ' 1980-82 2300 MW INSTALLATION ' B&R WELDING PROCEDURE WPS-10038 REVISION 3 REF: BRF-3802
!.l By copy of this letter we are advising Brown & Root that Welding Procedure Specification WPS-10038, Revision 3,is " Approved for arrangement only - proceed with fabrication subject to compliance with all con-tract requirements, drawings and specifications".
V W orhead W ' Resident Engineer l JJM:RCB:st cc: H.C. Schmidt 6L R.E. Hersperger IL B & R DCC DIST. L.T. Van Amerongen IL - 41.C..Dodd IL P.M. Milam lL 0000 1 CHILDRESS I BUSSOLINI I WELLTR ' l TUGC0 QA M l-- __Q M P lI _ . , s_ F0lA-85-59 . mA _
e . w e.o ensuoun2 see. e osointoN,TEMAs newsou 3 APPLICA8LE CODE ($1 emas 1 or 2 AWS 01.1-74 SUPPOnTINo ouAuricationts: WELD PROCEDURE SPECIFICATION AW-88114 AW-BBll5 sehuetea ASTM A519 Gr.1026 or Gr.101'8 To JLSTM A588 Gr. B or Gr. A Welding Process (es) Shielded Metal Arc Menvelor Automatic Manual
- Position IG and-2G Filter Metal specificationdFA AS.1 Pr e N/A cleosification E7018 Flux Classifica*Jon h/A TeledYne MCXay Treden me Shielding Gee N/A Pio. rete N/A Single or Multiple Pess Multiole single or Multiple Are Sinale Welding current Direct polarity Reverse Mode of Metal Transfer N/A sacking- None cle ning Ch1Doino. Brushino.mGrindino -
Prehest See " Additional Data" inte,oeseTe h 700F fo 7000F ' .lj Postweld Heat Treatment - None
- WEl. DING PARAMEW Pass N O.
atacinoon wetoiwocunneur AWEnEs VOLTAGE 8P,8,8 yngy p h, c' 1-2 3/32" E7018 80-105 21-27 2-6 IP . 3&On 1/8" E7018' 120-155 19-24 4-8 IPM
- Alt. 3/32" E7018 80-105 21-27 2-6 IPM -
.t \
i # 2G I \' 1-2 3/32" E7018 71-95 20-26 2-6 IPM
, 380n 1/8" E7018 112-151 19-25 4-8 IPM N.
.:
- Alt. 3/32" E7018 71-95 20 2-6'IPM l ADDITIONAL DATA This electrode size shall be approved by the Project Welding Engineer prior l to usage for fill passes.-
- 1. Preheat shall be established according to base metal thickness as follows:
I Thickness Preheat Temperature To lh" 700F d Over 1 " to 2 " inclusive 1500F ouo Over 2%" 2250F
~
PREPARATION A/PRfvAty DATE
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</ PnoJacT: Comanche Peak, TUSI mar i wasnma
. Ac r /0-i7-70 Jos NO. R-0172
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... 2 .2 APPLICASLE COOtiS3 gyPOftTpeo l AWS 01.1-74 .auALincATionts WELD PROCEDURE SPECIFICATION AW-BB116 AW-BB109 R. 1 .
senemmel ASTM A519 Gr.1026 or Gr.1018 To ASTM A588 Gr. 8 or Gr. A weldins Procen(ea Shielded Metal Arc Manuel or Automatic Manual -
- Po,ition SG and 6G Pr%
Uoward- - Filler Metal specification SFA A 5.1 clamunemio. E7018 - Flux Classification N/A Tredename Teledyne McKay.Chemetron shi eding os. N/A plowrme N/A
- single or Multiple Pa. NultiD1e single or Multiple Are Sinale weldine Current Direct polnity Reverse Mode of Metal Transfe, N/A l Becking None Cloonen. Chipping. Brushina. Grindino Preheet See " Additional Data" IntapessTempweture Range 700F to 7000F 2 Postweld Heat Treatment None WELDING PARAMETERS PASS ELECTR006 WELD 4No CURRENT SPE,EO NO. AAWERES DET R VOLTAGE yngygg
. SG 1-2 3/32" E7018 75-101 20-27 2-6 IPM -
3&On 1/8" E7018 104-139 19-25 4-8 IPM .
- Alt. 3/32" E7018 75-101 20-27 2-6 IPM i 6G .
i 1-2 3/32" E7018 75-95 22-26 2-6 IPM - ! 380n 1/8" E7018 115-145 22-26 4-8 IPM i )
- Alt. 3/32" E7018 75-95 22-26 2-6'.IPM -
i (
- ADDITIONAL DATA
, This electrode size shall be approved by the Project Welding Engineer prior to usage for fill passes, i d 1. Preheat shall be established according to base metal thickness.as follows: ( Thickness , Preheat Temperature To lis" 700F j . Over lis" to 21s" inclusive 1500F
- ; i" Over 21" s 2250F e Te 5o ,
PREPA ATION j ApMOV L DATE
?' >. md h - V. / h-lnlrA I PROJECT: Comanche Peak, TUSI 1
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- uA R LS a inesR wo JOs NO. CR-0172
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$ALiTY ASSURANCE ,
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WELDING PROCEDURE QUALIFICATION RECORDjppj f W -
, m.. a -
PER AWS D1.1 Ec_c - . PROCEDURE-sa: emet sg ASTM A519Gr.1026 :
- 7. A588 Gr. A _ . Thick. 0.566" 3i,750"-
o; ,
. ,,,;,,a, gg sauerse w+. .g,5,:. . .. .
;pyp c.; .
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i Welding Procen(nL Shielded Metal Arc ' Position '1G __ P, shoot & IPT Range 1500F; 1500F through' 7000F Piller Metal, $pec. SFA-5.1 * - - deu _ ' E7018 sia.3/32" & 1/8" Single or Multiple Peu HultiDie _. _ single or Multiple Arc _ Sinale py Weld Joint Type Ooen Butt "J" Groove -
} i Weiding Current, Type - Direct 3/32" 90-95 3/32" 24 3/32" 5.0 j
AMPS 1/8" 136-140_ voits 1/8" 21-22tpM _1/8" 6-7, Root Treetment tione _, Consumable Imert O . sackine nias O . ces O - Postweld Heat Treatment _ ilone
- TESTING _
y' - REDUCED SECTION TENSILE TEST
$PacwEm No. "'" "8'0"s Anna
), wio m uLTw ars utrways i Dia. LOAD L38 SM SSS. PSI Test #1
. 2.250 4.000 42'6,500 106,630
! Bar Failure
. Test #2 2.250 4.000. 427,500 106,880 .
Bar Failure . GUIDED BEND TEST- TYPE SPECIMEN NO. ASSULT * ' SPEC 1MEM No. RESULT- - i 1 ( W: 1..N.m._ Robert E. Reed _ Clock No, 0253 _ se,,, AAB
? Tats Conducted av . Jimy- Noman s tg, no, _ - - -
W
- a e certify that the statements in this record are correct and that the Procedure Qualification t nd ented in accordance with the c
- ;;:. welds were proposed. welded otsof AWS D1.1 Code 'and FCIR Request #1 dated 12/3/75 O .
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. ' panme.AW-88109 R2 4
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. 11/11/75 6.- ' WELDING PROCEDURE QUALIFICATION RECORD PER
- IF .
AWS DI.1
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PROCEDURE' - t, t same MetnialfSTM 'A519 Gr: 1026 To A588 Gr.8 . Thisk. .5469" os 3.7031 oualified Rense, Thiink 1 A75" Max. _ To :. one. Up 4" 0.0. I To s woodene Presente.) ; Shielded Metal Arc Po.ition 6G Un PM a IPT Reny 60 0F: 60 0F through 7000F j Finer metas, spw. SFA-5.1 t cia E7018 sies 3/32" & 1/8" 2 single or Multiple Pass Mul tiDIe { ",, su _ single or Multiple Are SIMele i* a weld Joint Type Onen Butt "J" Groove 3/32" 85-90 3/32" 24-26 3/.3Z"3.5-6.d weidine current, Type Direct
- AMPS 1/8" 130-135 vela 1/8" 22-24 epee 1/8" 5-11.1 Root Treatenant Non*
, conewnable lasert O . sasianeRins O . Oas 0 -
Postweld Heat Treatment lione TESTING k. REDUCED sECTION TENslLE TEST - speciusa no. " " * " " wio m
^"'" """ """
Dia. Loao, m s M M .PS8 LocationoF FAnume G T.o at 2.'257 4.000 406,'500 -
'101,625 Bar Failure Test #2 2.257 4.000 405,500 101,375 4 Bar Failure OUiOED SEND TEST- TYPE
- specimen iso.' RESULT SPECm0EN No. RESULT Welders Nann Randall Joe WhatieY Cloek No. 0983 stamp n Tan Condumed ay liteve Griffith Lab No.
We sortify that the statements in this treed are serrect and that the Procedure Quellfleetion test w and tated in asserdance with the :t . _ t of AWs 01.1 code and FCIR Request #1 dated 12/3/75.
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' WELDING PROCEDURE QUALIFICATION RECORD PER
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PRocEconE i . s.wMewrig ASTM A519Gr.1026 A588 Gr. A , Thick. 0.566"
- 7. one, 3.750" -
1 4 ouwified nones. Thick .1875" r. Max. ; one, Up 7. 4" 0.D. wwdinervosented Shielded Metal Arc po.itio. IG Preiwet&'IPTRange 1500F; 1500F through 7000F Filler Metal, spes. SFA-5.1 E7018 ca sin 3/32" & 1/8" l sinsie or moitiple pe. Mult101e 4 . :;.1 sinsie or m unipse A ,e Sinale ! ? ' weld Joint Type Onen Butt "J" Groove
- 3/32". 90-95 3/32" 24 3/32" 5.0.
weldine current. Type Direct Ames 1/8" 136-140 vests 1/8" 21-22pul/8" 6-7 i Root Treatment None , consumeide insert , Backing Rins O , aos O l ( Postweld Heat Treatment None- - TESTING * ' ,W REDUCEO SECTION TENSILE TEST , I sesemen no. **'""' ^"'" " " ' ' ""'
- mom Dia. tono,"tse sinssa.'est tocariou or raituna.
u. Je Test #1 2.250 4.000 426,500 106,630 Bar Failure l Test #2 2.250 4.000 427,500 106,880 Bar Failure
-' GUIDED BEND TEST - TYPE -
l spec m em no. nesutT l spec man no. nasuti l I l f welders Nann Robert E. Reed csoak h 0253 stamp AA8 Jinuny Noman I Tests condoned By Lab No. We certify that 'the statements in this reconi are correct and that the Procedure Qualifisetton test weeds were propered. welde i and testedin asenedeneswith the reedrementsof Aws 01.1 code 'and FCIR Request #1 dated 12/3/75. c, Brown & Root, Inc.. fL s,2 9 LL&b
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- PER AWS D1.1 1 l
PROCEDURE sas. Material ASTM A519 Gr.1026 To A588 Gr. A i, Thik. 0.566" Dio. 3.750" Ovalified Range, Thick .1875" To Max. ; Dia. ' UD _ To 4" 0.D. l WeldingProcess(es) Shielded Metal ' Arc . *
~
Position 2G _ Preheet Si IPT Range 150oF; 1500F through 7000F j Filter Metal, Spec. SFA - 5.1 - class E7018 sine 3/32" & 1/8" . Single or Multiple Pass Multiple Single or Multiple Arc Single Weld Joint Type Open Butt "J" Groove ' 3/32" 80-86 3/32" 23 3/3Z" 5-6 Weidine cuerdnt, Type Direct AMPS 1 /8" 130-133 vest,1/8" 22 yu 1/8' 1 7 Root Treatment None
. consumable insert O . sackins Rias O , as 0 -
Postweld Heat Treatment None
- TESTING
_, .y . g j i.' I REDUCED SECTION TENSILE 7EST - SPECIMEN NO. # wooTN Dia. LoAo. Les LOCATION OF FAILURE sTnESs.ess - Test '1 # 2.250 4.000 435.000 108.750 Bar Failure j Test #2 2.250 4.000 405,500 101,380 Bar Failure GUIDED BEND TEST - TYPE SPECIMEN NO. RESULT WECit4EN NO. RESULT b' I . 1 . Welders Name Robert'l. Bridges 0419 M No. Staisip Tests Conducted By Ji m Noman Lab No. e We certify th' t the statements in this record are correct and that the Procedure Qualification test welds were prope and tested in accordance with the requirwnents of AWS D1.1 code and FCIR Request #1 dated 12/3/75. c ,,,,,, BROWN & ROOT, INC. o.. .-AL ,, /2 9 4 m N e --_.: m m r ~_ _ nmmm ::- ^ -- W * .
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,, o4Ts 10/25/76 WELDING PROCEDURE QUALIFICATION RECORD PER AWS D1.1 PROCEDURE i am Material ASTM A519 Gr.1026 To A588 'Gr. A . Thi&. 0.566" oi. 3.750" -
,l Qualified Range. Thick .1875" To Max. . oio, _ Up To 4" 0.D. .
- , weldin, Proesn(a) Shielded Metal Arc
' 0 ~
! Position SG UD Prehest si IPT Range 150 F': 1500 F tbrough 7000F Filser Metas, Spec. SFA-5.1 clam E7018 Siae 3/32" & 1/8" !, sines e or Multiple re. Multiple Single or Multiple Arc Single ! i .W"" ' weld Joint ry ,e Open Butt "J" Groove 3/3Z" 86-90 3/Jz" 23-Z4 3/f4 4-4.5 weldine current. Type Direct AMPS 1/8" 120-123 vesis1/8" 22 spul/8" 6-6.5 Root Treatment None , consumable insert O . seekins Rias O . Gas O h,, Postweld Heat Treattnant None TESTING l;r: REDUCED SECTION TENSILE TEST
- f SPsCIMsN No. I *
- mom Dia. Loao. Las sTness.est LoCAftoN oF FAILURE h i *
. H} Test #1 2.250 4.000- 403.000 100,750 Bar Failure i l Test #2 2.250 4.000 432,500 108,130 Bar Failure p GUIDED BEND TEST - TYPE ? . } sescass wo. nasutT . specman No. nasutT F. 4 Weiders Name Robert'E. Reed w go, 0253 Stoni, AAB. l Tats condocted my Jinuny Noman Lab No. We certify that the statements in this record are correct and that the Procedure Qualification test welds were propered welded and tatedin ae.ordann witwthe requirmnents of AwS D1.1 code and FCIR Request #1 dated 12/3/75. 1 Nk
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PENETRATtON h "* ' EkK/G 885 & HILL
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4 aq -hQ k I) p UNITED STATES o,, [ g NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20$55 \ %O
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- tr r July 8, 1981 ' O r , L Y pe::m IM;= q:. \.,77 ' (r
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]vJUL 2 7 'ool l' Regulatory Guides 1.10, 1.15, 1.18,1.19,1.55, and 1.103 ETEC LIBRARY REGULATORYGUIDEDISTRIBUTIONLIST(DIVISION 1)
SUBJECT:
WITHDRAWAL OF SIX DIVISION 1 REGULATORY GUIDES ! The following regulatory guides were issued as indicated to provide ' guidance to licensees and applicants for implementing portions of the Commission's regulations with regard to materials, construction, and testing of concrete containments and other safety-related concrete structures: Mechanical (Cadweld) Splices in Reinforcing Bars of Category 1 Concrete Structures," Revision 1, January 1973, 1.15 " Testing of Reinforcing Bars for Category I Concrete Structures," f Revision 1 December 1972, _ l 1.18 " Structural Acceptance Test for Concrete Pr.imary Reactor Containments," Revision 1, December 1972, 1.19' " Nondestructive Examination of Primary Containment Liner we lds " Revision 1 August 1972 (Safety Guide 19), 1.55 " Concrete Placement in Category I Structures," June 1973, and
}
1.103 " Post-tensioned Prestressing Systems for Concrete Reactor Vessels and Containments," Revision 1, October 1976. The regulatory positions of these guides are now considered to be covered by one or more of the following national standards:
! -- ACI 359 (ASME Section III, Division 2), " Code for Concrete Reactor -
Vessels and Containments," endorsed by Regulatory Guide 1.136
" Materials, Construction, and Testing of Concrete Containments (Articles CC-1000. -2000, and -4000 through -6000 of the Code for Concrete Keactor Vessels and Containments)."
F01A-85-59 ns
i - i ACI 349 " Code Requirements for Nuclear Safety-Related Concrete Structures," endorsed by Regulatory Guide 1.142, " Safety-Related Concrete' Structures for Nuclear Power Plants (Other than Reactor Vessels and containments)." l l -- ANSI N45.2.5,'" Supplementary Quality Assurance Requirements fo Installation, ' Inspection, and Testing of Structural Concrete, i ~ Structural Steel, Soils, and Foundations During the Construction Phase of Nuclear Power Plants," endorsed by Regulatory Guide 1.94, i " Quality Assurance Requirements for Installation, Inspection, and 4 Testing of Structural Concrete and Structural Steel During the i Construction Phase.of Nuclear Power Plants."
~
! Therefore, Regulatory Guides 1.10,1.15,1.18,1.19,1,55, and 1.103 are
' being withdrawn. Withdrawal of these guides is in no way intended to alter any prior or existing licensing commitments based on their use. -
Regulatory guides may be withdrawn when they are superseded by the
- Commission's regulations, when equivalent recommendations have been incorporated in applicable approved codes and standards, or when changes in methods and techniques or in the need for specific guidance have
- made them obsolete.
l Robert B. Minogue, Dtrector Office of Nuclear Regulatory Research I i
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- FOLDER NO. 5 Draft No. Date COMANCHE PEAK ALLEGATION WORK PACKAGE MECHANICAL & PIPING Category 5 - Weld Designs l
Allegation Numbers: AW-44 l l Statement of Allegation: Improper weld design involving:
- a. Possible laminar tear of 2" plates around main steam line penetrations
- b. Cadwelds to 2" plates cause stress in "Z" or through plate 2" thickness if pressure is applied 1 to containment vessel during postulated accident '
or similar pressure increase - Reference Documents: See source documents marked on attached pages from allegation list. Source of Allegation: Unknown - see enclosed allegation list
. Date Received: 1/1984 The above information prepared by D. Hunnicutt 5/31/84 Name Date Group Leader
) Name Date Assigned l Team Members [ Oate Assigned Date Assigned l E Date Assigned Date Assigned r ! F0lA-85-59 L _- ads
I i 1 Annex 3 Conversation Record Allegation Number F Time O a 00 Date dIA G G;#c,M Type / Visit Conference Telephone Incoming Outgoing Name of Person (s) Contacted or in Contact With You Organization - Telephone Number lN,a n Ou M aavu ~d g w k at /2 s v 0
SUBJECT:
u)Eto/a6, O C c8 0 wet o s/veve _r na ruw 5' h ^ f p - .m i w, 5 fewcs tan o A rt.or/4vc 2e 3 m<. ro SA rw. SUMARY: ; M h o f4; f4 /2c- cr.oe. w, sa' ,
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Signature '/ Of&f l Date $4 6 6,/9 K v 7 6 - Name(s) of Other' Persons Who We're Present During Conversation ' l r o u .; 6 3.c.2 t I have reviewed the sumary of the conversation with the individual (s) named ' below and agree that it accurately represents the conversation. Signature of Person Providing Infonnation File: Allegation Work Package cc: Project Director ' Group Leader Additional pages may be attached as needed. Additional pages should be ' identified, signed, and dated. , 40lA-85-59 hzd =
(S M ge . 0 6% i6 Annex 3
, Conversation Record Allegation Number 6' Time d F 3 0 -
Date @ 6 6 /d N_ i Type 7 Visit Conference Telephone
' Incoming Outgoing Name of Person (s) Contacted or in Contact With You Organization -
Telephone Number b G N ru o S l.)) o l l s so m s ( Il d 5 Ni >4 I . S
SUBJECT:
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Name of rson Documen g Co y rsation o'e 4 /rG > ML'I/~ Signature ) 6XP/ Y p-j , I i< Date #14 6 4,; /9k
- Name(s) of Other/ Persons Who Were Present Ouring Conversation l v lOYM 6 0 tLG I havs
- 1 viewed the sumary of the conversation with the individual (s) named below and agree that it accurately represents the conversation.
Signature of Person Providing Information File: Allegation Work Package cc: Project Director Group Leader Additional pages may be attached as needed. Additional pages should be identified, signed, and dated. i FOIA-85-59 "'
e f Category 5 ~$ % h Comanche Peak Open Issue Action Plan Task: Improper Weld Design Ref. No.: M-44 Characterization: M-44 alleged that an improper weld design was used for attaching cadweld sleeves to the outer surface of containment penetration sleeves for the main steam piping. Initial Assessment of Significance: There is sufficient specificity to warrant followup of this allegation. The safety significance is difficult to assess with the available information. Source: Mechanical and Piping Allegations, Category 5 ; Approach to Resolution:
- 1. Identify and review pertinent G&H specifications, codes and standards, Brown & Root procedures and drawings for, applicable requirements.
l
- 2. Review manufacturer's literature on cadweld designs and installation.
- 3. Review B&R data package on one or more main steam line penetration a ssemblies.
- 4. Review NRC Region IV reports for additional infonnation related to allegations.
- 5. Identify subcontractors and review their drawings and appropriate other docunents.
- 6. Evaluate allegations for generic / safety implications.
- 7. Report on results of review / evaluation of allegations.
Related Open Issues: f . 1. Identify related open items.
- 2. Review activities necessary to close or partially close related 4 issues, either based on evaluation conducted above or reasonable additional inspection when the inspector is familiar with the areas.
k F0lA-85-59 **
.t Category No. 5
-2
- 3. While perfoming physical inspections above, examine surrounding systems, components, and structures for any apparent related defects or indicators of faulty workmanship.
- 4. Complete portion of IE Module on welding if it relates to effort made on allegations.
l 1 l 1
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- 1. In the first paragraph on Page 2, the reviewer writes "The drawing
, calls for ASTM A588 steel plate . . .". Since materials are ques-l tioned by this allegation, consideration should be given to adding i a statement addressing the next step -- Was the specified material used?
- 2. The same comment'noted above applies to the materials cited in the second paragraph on Page 2.
I 3. In general, well written. Addresses issue. f 4 4 4 s 1 ? g- =w
. .o MECHANICAL & PIPING ALLEGATION REVIEW CATEGORIES 1 Category Est. Mandays Allegation Package Assigned Schedule i No. Subject to Complete Nos. Prepared to Open Close Remarks
- 1. Welding - incorrect AW-31, AW-34, AW-35, or no procedure AW-37, AW-38
- 2. Welding procedure AW-32, AW 36, AW-54 adherence
- 3. Improper or defective AW-39, AW-40, AW-41, 3
AW-42, AW-43, AW-47, 1 welds L
. AW-49, AW-50, AW-52 AW-53, AW-57, AW-58, AW-59, AW-60, AW-62, AW-64, AW-65
- 4. Plug welds AW-51, AW-55
- 5. Weld designs AW-44
- 6. Improper weld AW-45, AW-46, AW-61 .
' preparations AW-66
- 7. Weld examination and AW-48 T testing
- 8. Weld repairs AW-63
! ) 9. Weld rod control , AW-56
- 0. Damaged pipe AP-5. AP-8, AP-10
- 1. Pipe installation AP-4. AP-9, AP-13 9 t1
- h. Reactor vessel AP-11 g installation j 13. Repairs & modifica- AP-7, AP-12, AP-16 g D tions to pipe .
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$D 14. Miscel. piping AP-6, AP-14, AP-15, AP-17 44 -
7
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CONTR0ttE0 COPY CONANCHE PEAK NUCLEAR POWER PLANT ' [( ALLEGATIONS AIS/08 INVESTIGAil0N5 Sl8804RY , i CROSS REF./0R COMPLETION ALLEGER-DAIE RECEIVE 0 1 e TASK SOURCE TRACKING CAIEGORY 1-7 . SCHEDULE SOURCE g/0 ATE SYSTEN No. LEAD OPEN COMPLETE DOCUMENT PAGE .1 I
& ALLEGAll0N OR CONCERN ACil0N/ STATUS ANON CONFID AW-38 Olesel Generator systes 1 84-006 3/T/84 , weld repair without ARI A-4. P. 12 and authorization / procedure Testloony P. 15-17 AW-39 Vendor weld discrepancies 3 4-84-006; 3/7/84 - on pressuriser tank in RIV A-45, P. 3
. I AW-40 One weld sean largely Initial dis- ASLS Pre-filed 1 Testloony, dtd 5/24/82, rust and concrete positten IR-79-15 Testloony (Taylor) ARI P. 65 A.36.b, IR-73-15
- -41 Improper welds in primary Initial dis- ASLS Pre-filed 1 lestloony, dtd 5/24/82 j coolant systes position IR-79-22 testloony (Stewart) ART P. 65-b6 A.38.c. IR-I 1R-80-02 79-22. IR-80-02 4 -42 Spent fuel pool liner Initial dis- ASL8 Pre-filed 1 Testloony, dtd 5/24/82, j welding condillons position testleeny (Taylor) ART P. 65 A.36.b. IR-79 15 O
j poor IR-79-15 RIV-04-A-0009 Unknown (1/84) I Improper Welding of Open 1 . AW-43 4
- Socket Welds ARI , [
d.D d " ' _ _ Unknown (1/84) O
-44 leproper Weld Design: Open. I. Barnes RIV-84-A-0011 1 4 ,
Welding A588 Plate Le lavestigate ART J to Cadweld sleeves f AW-45 55 Piping not purged during 1 A4-83-005 5/20/83 g j welding ART A-19. P. 2,3; Testimony P. 56, 59
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AW-46 Inadequate grounding 1 84-006 3/7/84 A-7 during welding ART Testloony, P. 23 [ 4 t-
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