ML20099D114
| ML20099D114 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 11/14/1984 |
| From: | Victor H ILLINOIS POWER CO. |
| To: | Parkinson G BECHTEL GROUP, INC. |
| References | |
| F-0997, F-997, NUDOCS 8411200202 | |
| Download: ML20099D114 (6) | |
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.L40-84(11-14)-L 8G.150b-i . lLLINDIS' PO WE COMPANY
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-Mr. Gordon'L. Parkinson.
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1Bechtel Power Corporation- .'
Fifty Besla Street San Francisco, CA- 94119 Dear Mr; Parkinson Enclosed.is S&L's response to Observation Report Number 25, Rev.~ 0.
~ This response has been reviewed by Illinois Power.
1 Sincerely-yours.
=-H.
- R$W R. Victor Manager.
Nuclear Station Engineering
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? Date r . ' NovemberK 2,719 84 . .
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, : Obse rvation :and : Resolution? Reports ; ' ' '
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3 Mr.?J.JDA Ge'ier 'f f M , -
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-Illinois - Powe'r . Company ' > ~
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- Decatur,cIllinois>62525j '
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. Dear Mr.<Geier .
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.'.. Enclosed isja-copycof(th'e~below'.111sted1 Resolution Reports with the proposed resolutionJ(Items 5 andi6)?: completed.by Sargent & Lundy:. ,
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Resolution Report Number 2'5,~Revi's ion'01 I
' Resolution Report Namber'26,? Revision ~0 '
We are 'also enclosing a copy of the' corresponding. observation Reports?
for completeness. ~
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~Please review our. proposed resolution and,'if you' concur,-sign Item 7 -
of the' Resolution' Report and' forward thc/ report to the. independent ..
reviewer. Also, please. return,a copy of the signed' Resolution Report to Sargent & Lundy for our records. - '
i' Yours very truly , ,
.(, ,b,,.) -j 2
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R. C. Heider RCHand Project Manager Attachment - all recipients i, '
D. P. Hall E. L. Branch L 'H.<R. Victor . B.:A. Erler I ,
F.'A.-Spangenberg (oricinals)- W. G. Schwartz *
<L. E. Ackmann/W. A. Chittenden- L. R. Stensland yW. G.'Hegener- H. 6. Taylor E.'V. Abraham R. A. Witt R.RX.' French- R. B. Johnson J..M. McLaughlin ..
M. J. Shewski H.;M..Broka-
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.CLINTON' POWER STATION' OJob 15478-003~
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j OBSERVATION REPORT- -
File No.2 25 - ; .
' File: Revision No.' 0 9: ,
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.Date October ZZ,1954 E1.f. Level 1. classification of' Observation:
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"'Notsignificantlto' safety; .. .. ..
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- T Additional information required :*See -5, "Recomendation for resolution" "
Significant to safety, , send to Level .2 Committee! .
. 2. C StEucture(s)'; ! system (s), L or component (s)iinvolved:l
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sSW System, . ' '
. Motor and a ir operated va ves>w l , t_
i h. extended masses ~ ,
- 3. Description of..' Observation:
I iThe S&L modelfofImotor and-air operated valves 'with extended masses may bei more rigidithan the actual situation due to possible amplification through' i .the valve superstructure. There does not appear to'be a correlation
~
L : between the way the valve yoke ts modeled and the .actualf stiffness.of the i yoke or frequency lof the valve superstructure / operator.
4
- 4. Significance of Observation: -
C-.,
.The potential exists that the calculated' acceleration lmight not be
, adequate, especially for.those cases when a valve is subjected to
' hydrodynamic forces.
i- 5.- Recomendation for resolution (optional):
l' . S&L should verify that the model for these valves adequately represents
! the actual situation, and that the calculated accelerations are justified.
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6 Signatures: /eh s//Y Leviel gevAew comittee -
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, CLINTON POWER STATION Job 15478-003 b RESOLUTION REPORT Fil e ~ No. 25 File Revision No. 0 Date .0ctober .22,1W l'.; Resolution by Level 1 Internal Review Committee 2.' Classification of Observation;
- a. Not valid (see continuation sheet)
- b. . Not significant to safety
- c. X Additional information required .
d.- Significant to safety- l
- 3. . Program ' resolution .is:
a.- C1osed-item
- b. X Action to be taken' by Reviewee -
4.1 Review Committee signatures:
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- 5. Reviewee pro sed res,olution:
- a. Description of proposed resolution:
(See Continuation Sheet:)
- b. Basis of proposed resolution:
(See Continuation Sheot) 6 Reviewee response report signed by
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l $!5 Engineer f DKte
'WY Manager
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Date/ I Y.
- 7. Illinois Power Co. Review :
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- CLINTON POWER STATION _
@& ) : Job 15478-003 RESOLUTION REPORT
- (continuation sheet)-
-File No.. 25
- File Revision No. 0
' Date A
S&L Description of.-Proposed Resolution for Observation Report '
File No.;,25-The method-used by SargentL& Lundy to model valves with eccentric
-mass.was-found to be' acceptable to the NRC. - The' justification
.for this modeling. technique is. documented in. Volume 19 of the FSAR,
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F-0997 ._
L40-84(11-14)-L-18G.150b-
.Clinton-Power Station'-
Independent-Design Review Standard Distribution List Director of Nuclect BeactoriRegulation.
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Richard J. Goddard,.Esq..
. NAkt'a i/[NrhAUSchwencer.:-Chief' :" d" '
Office of the Legal. Director Licensing Branch No. 2 U.-S. Nuclear Regulatory Commission Division of-Licensing .
Washington,-D.C.- 20555 JU. S. Nucleac Regulatory' Commission :
. Washington, D.C. 20555f -
Don Et'chisoni Director,LI111nois-Department'of James G. Keppler- Nuclear Safety-Regional Administrator -1035 Outer Park Drive Region-III Springfield, Illinois' 62704 U.-S. Nuclear Regulatory Commission-
'799 Roosevelt Road .
Allen Samelson, Esq.
Glen Ellyn, Illinois 60137 Assistant Attorney General
. . Environmental Control . Division .
Byron Siegel- _
Southern Region-Clinton Licensing Project Manager -500 South Second Street
' Mail' Code 416 Springfield,-Illinois .62706 U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Jean Foy
~Spokesperson, Prairie Alliance-Fred Christianson' 511 W. Nevada
. Mail Code V-690 _ Urbana, Illinois 61801 NRC Resident Office Clinton Power Station Richard Hubbard R.R. f3, Box 228 MHB Technical' Associates Clinton, Illinois 61727 1723 Hamilton. Avenue Suite K James L. Milhoan San Jose, California 95125 Section Chief Licensing Section Quality Assurance Branch Gordon L. Parkinson Office of Inspection and Enforcement Bechtel Power Corporation Mail Stop EWS - 305A Fifty Beal Street U., S. Nuclear Regulatory Commission P. O. Box 3965 Washington, D.C. 20555 San Francisco, California 94119 Richard C. Knop Roger Heider Section Chief Sargent & Lundy Engineers Projects Section 1-C 55 East Monroe Street ,
U. S. Nuclear Regulatory Commission Chicago, Illinois 60603 799 Roosevelt Road Glen Ellyn, Illinois 60137 i
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