Canadian Nuclear Safety Commission Safeguards Program Annual
o s r.^ /2 . · united states nuclear regulatory commission office of nuclear material safety and...
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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS WASHINGTON. D.C. 20555 August 12. 1992 NRC INFORMATION NOTICE 92-58: URANIUM HEXAFLUORIDE CYLINDERS - DEVIATIONS IN COUPLING WELDS Addressees Al Fuel Cycle Licensees Purpose The U.S. Nuclear Regulatory Commnision is issuing this !nforma:ion notice to alert addressees to a potential defect in the fabrication of uranium hexafluoride cylinders manufactured by Trinity Industries, Inc. It is expected that recipients will review the information for applicability to their facilities and consider actions, as appropriate, to address similar problems. However, suggestions contained in -is information notice are not NRC requirements: therefore, no sperific action or written response is required. Description of Circumstances An NC licensee recently discovered that the valve and plug couplings of model 48Y uranium hexafluoride cylinders manufactured by Trinity Industries, Inc.. are attached by welds that are not full penetration welds, as called for in the purchase crier specification. Due to thread damage. the licensee was replacing a coupling, and while cutting through the existing weld, noted the lack of full penetration. The licensee had expected a full penetration weld as 'hown in American National Standard. Packaging of Uranium Hexafluoride for Transport (ANSI Ni4.i - 1971. figure 9.) After informing the NRC regional office, the licensee cut the valve and plug coupline welds from three other 48Y cylinders manufacturer by Trinity. All six welds were foiunI to bp 'es. than f ull penetration. Thp licensee then had z contractor pprform ultrasonic test, of the roup!:nq we!:l; or 15 4t cyl inders manufactured By Trinity. The coupl inc; .- ,• frrir r, tres;', cy;inder, werp removed to v'sually examine the welds and vpr'fy tr•; re iit. . ', rl'. or .ic tp;ting ThF rp'ilt '.howed that ;: of h., 15 ;':n ner. hall coupinr, weld-; adkinr, fi; pnnpe ration. and a tweilfh -o nw'.: it fili p.nk* n, or wlld . 'tr ;(m'rda ;T. :' , ,i»nn. Thi - ii, . pAiaml na .,t , *'. r, rpnov-, 'i 1;n l ' , if -r' , : '. r. ,ii t, of thrn ;,i r 4 .wr:' .1 n TI- t -' Tit , , F DA,,,- .4r ,r .,i 2, , 4 " : ' . -, '. -^ 'p c e ^ 3 ^ ;t --os r.^ 0 /2 .
Transcript of o s r.^ /2 . · united states nuclear regulatory commission office of nuclear material safety and...
UNITED STATES NUCLEAR REGULATORY COMMISSION
OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS WASHINGTON. D.C. 20555
August 12. 1992
NRC INFORMATION NOTICE 92-58: URANIUM HEXAFLUORIDE CYLINDERS - DEVIATIONS IN COUPLING WELDS
Addressees
Al Fuel Cycle Licensees
Purpose
The U.S. Nuclear Regulatory Commnision is issuing this !nforma:ion notice to
alert addressees to a potential defect in the fabrication of uranium
hexafluoride cylinders manufactured by Trinity Industries, Inc. It is
expected that recipients will review the information for applicability to
their facilities and consider actions, as appropriate, to address similar
problems. However, suggestions contained in -is information notice are not
NRC requirements: therefore, no sperific action or written response is
required.
Description of Circumstances
An NC licensee recently discovered that the valve and plug couplings of model
48Y uranium hexafluoride cylinders manufactured by Trinity Industries, Inc..
are attached by welds that are not full penetration welds, as called for in
the purchase crier specification. Due to thread damage. the licensee was
replacing a coupling, and while cutting through the existing weld, noted the
lack of full penetration. The licensee had expected a full penetration weld
as 'hown in American National Standard. Packaging of Uranium Hexafluoride for
Transport (ANSI Ni4.i - 1971. figure 9.) After informing the NRC regional
office, the licensee cut the valve and plug coupline welds from three other
48Y cylinders manufacturer by Trinity. All six welds were foiunI to bp 'es. than full penetration.
Thp licensee then had z contractor pprform ultrasonic test, of the roup!:nq
we!:l; or 15 4t cyl inders manufactured By Trinity. The coupl inc; .-,• frrir r,
tres;', cy;inder, werp removed to v'sually examine the welds and vpr'fy tr•; re iit. . ', rl'. or .ic tp;ting ThF rp'ilt '.howed that ;: of h.,
15 ;':n ner. hall coupinr, weld-; adkinr, fi; pnnpe ration. and a tweilfh -o nw'.:
it fili p.nk* n, or wlld . 'tr ;(m'rda ;T. :' , ,i»nn. Thi - ii, . pAiaml na .,t , *'. r, rpnov-, 'i 1;n l ' , if -r' , : '. r. ,ii t, of thrn ;,i r 4 .wr:'
.1 n TI- t -' Tit
, , F DA,,,- .4r ,r .,i 2, , 4 " : ' . -, '. -^ 'p c e ^ 3 ̂ ;t --o s r.^ 0 /2 .
Di scuss ion
The De~partme~nt ct ',ar vcla ,-r a.
uraruirn hexaf'tuor'.it- A!rta'r' 34C K.~- ; <e' tthpr thp ANSI N14, r~*~~~r
Code. Section Vil. DIV, 0?r :r opt.* *. * - *
the c-viind.4'r was iiiar'uf 1 t~jre2 Cr 0 ~*~
couplings of 48f cy~indeors. h :r:: a1.~
purchaser~s approvail
rhe ASME (fl'i'. Spc! )C cn~ . ''
f cr Pveral ~Ipt hq,I, , f onripc t r,,; tr: w use fu~ 1 p,'notrat ion w~ ~ .tm i~v rpqli riýdl. Try nt i tyh.a,, app!~ f,:7. ~ -' ~ 0oFI thc cyI i n'1r,, fnor t rarnsp,;rt of.a'-r ., : *. ' licen see' s p turc h a pf .r,!.!v- .p-.c'f1,4 4 r~'> -w
no t apppa r o o hp .lb 'i- 3 jr -*w' ' *
.cr rol, that wprxý pr;ý'>,ant Iiir-ny; £,jr!
svpodT!flcal ly the~ 1irltlIrr %;*rv
Urarlunir hexa f !;o r; idp, ',i r, wr -.
weld sizes. or other *':d dfet -1
trai.sportat ionrI 1nC dJnt. H';w-pr. Ip r 'laylijirps or rplpaý,Ps ji~''Iw~
L i cnsepI mnay wart t 1r? r'-' -A4 *
want to cor- ldf'r takinrq ,t , ''-'r' .
ti-,r'-' ;p rq W
r 'I
- *
r :v'
IN 92-58 August 12. 1992 laqe 3 of 3
This information notic.e requires no specific action or written response. If you have any questions about the information in this notice, please contact the technical contact listed below or the appropriate regional office.
Richard F. Cunningham. Director Division of Industrial and
Medical Nuclear Safety Office of Nuclear Material Safety
and Safeguards
Technical contact:
Attachments: 1. List of Recently 2. List of Recently
Thomas Wenck, NMSS (301) 504-2404
Issied NMWS Informntion Notic', issued NRC Infor4tlion NoticeF
Attachment I IN 92-58 Au;gst 12. 1992 Page I of I
Lid' OF RECENTLv ISSUED NMS INFORMATION NOTICES
In formation Notice No.
92-3E Implementation Date for the Revision to toe EPA Manual cf Protectlve Act!on Guide, and Prtectivp Actions for" Nuclea r : ' -Ipnt
mpl-omenrtation of the Del :-erate Mi;, Ondu.; RF l p
New Expc';ur- L irt f:)r Airbornr - -rar;,rn irn,, Thrr; ium
Uranium OTxj ' ls a* !;.'el . T ; : 4 ' : t ! r
r on at iej ,iy le FariiStip-'.
Brac(hyrtcerapy Ir,- ,'.r.t In o i, r; [";diu~ 192 W-re. U,»'d i r rn r.ho?' '
,Trc '. ' ,t i -
Date of ! ssuarci ,
05 12 92
05 c8 W2
05 06 92
02 2: 32
02 05 92
01 31 52
Ci 2? 32
Issued tc
All holders of OLs or CPs for nuclear power reactors, non-powee reactors and materials licensees authorized to possess large quantities of radioactive r-ateral .
, i I Nuclear P.gqulat.ry Commnnision L ensees.
All i;censees whose operations can caise airborne concentrations of uranium and thorium.
All fuel cyc!e and uranium fiFl -esearrt and developmp-nt icensees.
All uranium fupl fabrica tion ind convprsion facil
All N•uclear Requlatory Comi,:,',nn ('PRC licer.sees iiu hori/pd to uso"
!7 inm 192 'for brarhy th-rapy; manuifarturers and
i, .ftrihutrrs' of ridi;m 192 wirP ror ie 'n bradrh th~ .rap .
Ali fjpl rjrl ý and ratj t r 0i;'. i ~ns',' auithoriz ed r pO'..», irqge Qjint il
r i*'. r r j 1\' rn if f j. r0 1~
92-11
92 1C
Attachment 2 IN 92-58 August II, 1992 Pa4e I cf I
N: INFORMA TON NOTI ES NRr INFORMATION NOT[FES
InTforaiTor Notice No.
92-57
92-55
92-54
92-53
91-52. Supp. i
92-52
Subject
Radlal Cracking of Shroud Support Accesl Hole Cover Welds
Counterfeit Valves 'r the Corrercial Gralde Supply System
Currnt ; i raE FnlranTest Peult, for Thermro-ag Fire Barr'er Material
Level Ir.trumentat ;r, Inaccuracles Caused bo Rapid Depressurizatior
Potential Failure o0 Emergency Diesel Ge.erator: due to Excessive Rate of Load:nj
Nonconservative Error', in Overtemperature Deltai Temperature (OTAT; St.DO'r.T ;.arP,1 oDy i'rr rper Ga'n SPt,"i'n
Barrtir , an, "-'w -p r : an,!
,ar-h ; . onm
I':apc' A ' n dn . ,ra• h-.'. sc* .;r; " . <r ... r * ; rr ". "
T-' , 9 4 p »
'r-. *.r,r' i; id, Fr^(.<
Si·TI * ,, ''C:·' r . r.
Date of Issuance
08 1 92
0S 06 92
C7 27 92
C7 24 92
07 29 92
07 i6 92
(V i •
Issued to
All holders for boiling (BWRs)
of OLs or CPs water reactors
All holders of OLs or CPs for nuclear power reactors.
ill holder ,r Ls or CPs *or nuclear power reactors.
All holders of OLs or CPs for nuclear power reactors.
All holders of OLs or CPs for nuclear power reactors.
All holders of OLs or CPs for Westing,ouse (W)designed nuclear Onwer reactors
A. ; hold r-, of 01 or rp'
rn r,' r. of O 1 or rCP * ,,r rn'v .• r pow'er rpactor-.
'~ K, ~r r
f ,i ) -r rp,
Oi - .' ^,,9*4 r,', -.".r
"•' ., :nr ,J , t. r , ' ,r i'i,.
UNITED STATES NUCLEAR REGULATORY COMMISSION "
WASHINGI1N or 2(o''i ii 00 1
I '.dx I If 1 1 1i 1) ¾ 'A 1
*. - -* I
