ML20101G585

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Forwards Advanced BWR Punch List,Delineating Tasks to Complete PRA
ML20101G585
Person / Time
Site: 05200001
Issue date: 05/28/1992
From: Buchholz C
GENERAL ELECTRIC CO.
To: Kelly G, Kudrick J, Poslusny C
NRC
References
NUDOCS 9206260152
Download: ML20101G585 (26)
v • d • e


Text

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Mail Code 36I 175 Curiner Avenue

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San Jose, CA 95125 Phone (408) 925 ID FAX (408) 925-1193 or (408) 925-1687 Subject Add 2 PRA Puah ud" Message Tias d w.id b telut Je d a siw a nJ on Aloodas.

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ABWR Tasks to wrap up PRA I

P A R N

of DSER SSAR.

Title NRC Contact -

n e Next Date Action

' Commen ts Subtask GE Contact a a v Actor

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Fauk Tree Undste (FT)

O-1 RPS Reliability Kelly v s NRC TBD GE Provided RPS fault tree to NRC Raftery 4/15 v s NRC TBD ECCS Trees sent

Update ECCS fault Kelly to NRC 5/8.

n Fr.l A.

trees Raftery 3

' Update ixalancr of Kelly GE June Provide remaining Deferred tojune i

fantt trees to alku focus on i

n FT.113 trees Raftery more important ite ms.

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g Initiatmg Events (IE) cu I

v n GE

1. Use 0.1 in Staff requires use

.c hi S2 Defend IORV Kelly -

L'i -

frequency Raftery requantification 0.1 cvent/ year.

CE accepts -Item f

6 Resolved '

g.

w GE THD

2. Reflect 0.1 in SSAR f

tabic and text t

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E C-1 IORV success criteria Kelly NRC TBD Review Response Resporne sent to NRC 4/14.

i Raftery j. fs, Kelly to confinn

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osu s = started

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C - =. Confirmatory item v = discussed verbally but not documented.

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c = complete with documented agreement

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.19D 3.1'.3.3 Analyze interfacing Kelly n

n I.OCA -

Visweswaren upgrade. Track l

. Separately j

i CE 6/5 Revise SSAR to reDect-Part of SSAR '

no need to analyze update in response to item 0-2.

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item Section Subtask CE Contact a a y

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CO OJ CO Failur Data C-3 Justify common cause Eelly See item 0-5 failure data Frederick i

i 0-5 19D.8

' Justify train-level Kelly GE 6/15 Submit analysis after For item C-3 common tause Raftery requantification and 0-5, NRC approach is adequate suggested -

requantify PRA

.(

without

)

addressing CCF, then requantify I

GE Document in SSAR CCF as

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sensitivity study l

as part ofinput wr to RAP (Item I-N 15). GE /NRC

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have agreed on

ce

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components to include.

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. Jusdfy Kelly CE n

include new values in Action plan p

test / maintenance.

Raftery requantification: test discussed with data analysis and maintenance NRC 3/24: T/M u navailability unavailabilities wHl bc increased for GE TBD Reflect in SSAR utility flexibility.

.I ECCS, RCIC RiiR unavailability will be taken as 2%.

Item Resolved.

C 48 CDF sensitVity to Kelly GE TBD New rec,uest by i

outage times, Raftery after NRC.

gj surveillance intervals.

S/50

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4

-2

. O-6 Tables justify RIIR, IIPCF KcIly GE TBD reflect justification in Justification m

g.

19D.G-2 pump failca Raftery SSA R.

provided 4/13

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. probability Raftery.to Kelly.

3 j E, Justification

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accepted by NRC.

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Item Resolved.

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l O-21A Ilst sptems not part Palla GE 6/15 Provide list r

of certified design, -

Duncan 1

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significant

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- assumptions.

i assumed reliability l

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_1 Isvel 1 PRA and Shqust Related Studies (FRA) 4 Fire water credit Kelly

' GE approach S-11:

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correction Visweswaren conservative.. Fire water will be in RAP and as applicabic.in acc.ident management.

No other action needed

-Item Resolved Requandfy level I Kelly NRC

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Tabular results n-PRA-PRA results (base Raftery sent to NRC 1A case) 5/22: CDF by l

inidator and '

. accident clau.

n

- Add comparison to

' Kelly CE

'TBD New request by W

PR-1 B operating BWRs,

.Raftery after NRC. supports

.' W why sequence 6/30 FSER A.2.I.1 frequencies decrease

..m i gj.

Kelly n

Study of effectof

- Raftery CE TBD. Provide results Provide results'if l

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,.d PRA-2 instrumentation out After need ed to '

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of service-6/30 sepport tech spec.

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t P A R 75 DSER SSAR Title NRC Contacs I

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. Level I uncertainty Kelly v

GE

'5/15 Submit uncertainty Results stop at.

analysis Raftery analysis CDF, will not be prtweed

- through analyns. Item is late due to work on Fkxxi PRA.

O-11 Initiating Event Kelly Address as part uncertainty of item O-18A I-15 PRA input to Kelly v

GE

- Define input General Reliability Assurance Raftery agreement reached on how to proceed IN

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. n:

m PRA input to ITAAC n GE 6/1 Submit about half 7f, n-r,_.;

PRA-3 Duncan

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GE 6/30- Submit balance 0-22A PRA as a design tool ! Kelly v s NRG 5/8 Provide response 95% complete Duncan draft provided

. E'

. 4/7. NRC says good.

si.

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- Interface requirement n = not applicable-5/28/92

. 62 P = IMTR page number - no issue number i" $

n - Not a DSER item Page 10 t

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DSER SSAR Title NRC Contact I n e Next Date Ac6cn Com ments item Section '

Subtask GE Conext a a v Actor n 1 i

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New item; 0-22B

.PRA Insights Kelly NRC 5/8 Outline of _

. added in 3/23 Duncan

. management closure.

June 25 staff deadline.

meeting.

Clarification expected Narrative l

5/8 relating how PRA was used. -

including how several DSER items were addressed.

Probably CE addresses by -

additions to j

022A response.

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-5/28/92-

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item Section -

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NRC Contact I n c: Next Date Action Commen ts t

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t, 0-20 Shutdown risk. Four Kelly NRC agrees on c

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subtasks:

Visweswa ren 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> mission

..t

.ti m e.

t Table 1 - ABWR design NRC

?

Seat to NRC 5/8.

19.4-1 featares Tables

2. Review of past NkC ?

Sent to NRC 5/8.

19QB-I, -2 ' shutdown events

3. Decay heat E

6/30 j

removal reliability

4. Other rad <

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o, S3 Other Analymea (OA)

O-12 Fire PRA K elly -

c c s NRC 5/4 Provide results od' No major items Raftery review to GE expected. Dare slipped from l

4/15. MaxweII/

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Kelly discussed 1

questions 5/27.

I Contractor s

review next.

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I-9 '

Internal ' Flood KcIly s

s CE 5/27 Provide partial draft.

Appmach l

Visweswaren outlined 3/24 Four subtasks:

NRC Provkle rapid feeback!

San Jose

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1) Turbine' Badg Ehlert i

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SI S = Staficorrection v = discussed verhally but not documented -

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= Interface requirement n = not applicable -

5/28/92 0

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3) Reactor Bhig Maxwell Ehler P

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4) Event Trees Gokrek 1-C = Confirmatory item s = started 6-S = Staff correction v = discussed verbally but not documented O = Outstanding item c = complete with docu nented agreement

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= Interface requirement n = not applicable 5/28/92 P = DSER page number - no issue number

n' n - Not a DSER item Page 14 4

ABWR Tasks to wrap up PRA P A R TJ, DSER SSAR Title NRC Contart I n e Next Date Ac tion Comments item Section Subtask GE Contact a a v

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<n o,y IInman Factors in PRA C-5 These items are Plan (Subtasks O-7 addressed by the A,B, C. D) based 04 following job on NRC/GE O-9 subtasks:

0-10 phone call 3 March 92 and I-2 dressions 23 1-S March. Task E I4 I-5 was added later-I-6 I-7 l

A) Provide a list of Beckner v

GE 6/1 Provide list 1

f.y references / general Frederic k

%j methods used to

. determine all failure

, gj probabilities.

g Reference to GESMR g

PRA is acceptable.

E' B) Cceduct level I Kelly CE 6/1 Sensitivity study results increase sensitivity study Raftery sensitivity range i

if hard to n:

document source

',t, of number 19D.7 CE Document in SSAR C - Confmnatory item s = shM 1

o-S - Staff correction v - discussed verbally but not documented O = Outstanding item h

I

- Interfar.' requirement c - complete with documented agreement n = not applicable 5/28/92

r P = DSER pge number - no issue number

-M n = Not a DEER item Page 15

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ABWR Tads to wrap up PRA P A R

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DSER SSAR i. Title NRC Contact I n e Next Date Ac tion Comments item ' Section '

Subtask C E O..taca a a v Actor f

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19D.7 C) Develop K cIly v

GE Preliminary descriptions for most Duncan judgement of significant actions significan -

for input to control items room design"ie, documented in provide time 18 F.2.

availaNe for operstor l

action & signals that Later deleted by the operator relies Ross who will on. : hovedes input to simply control roorn design reference 190.7.

& EPGs DJ Provide snore specific references for.

operneor actions identified as

g significant based on

,'g' sensitivity stud.

7 References should include table and

. E' page. numberiin

,'M references.

A1:ern.tively, use a

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-; wiJer range in performing the sensitivity study.

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's C = Confirmatory item s = started

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v = discussed verbally but not docuamented O - Outstanding itene c = complete with documented agreement g.

ca I, = Interface requirement n = not applicable 5/28/92 j

P = DSER page number-no isuse noenber r2 n := Not a DSER item Page 15

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P A R l

17

~ DSER. SSAR Title NRC Contact I n e Next Date Acteon Comments 1

ite m Section Subtask CE, Comtact a a v Actor n I.i i

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s,'..

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E) Add (twnparium Ke!!y CE TBD Ne v vequest bv l

of hucian error Raftery after SIC to support i

contribution to CDF 6/30 FSER A.2.1.2 canpared to operating BWR.

t

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I 2

i Conta:= ment Eve _st Treen (CET)

L S-4 Staff estimates extra Kelly.

e s CE n

CE will take credit for Item Rest 4ved 6

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credit for vent in Buchhr,1z vent in Level I Class II internal requantification j

j event and seismic sequences i

0-13 Treatment of drvwell I,N

-wetwell bypass in 7 %!

.CETs. This item is

,m

. addressed by two sub.

)

+2

' tasks:

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. A) De. sign basis Kudrick Tracked sensit vity studies Saxena

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Kedrick/Saxena 4

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= Confirunatory item s - started h

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c-S - S4aff correcios v = disc assed verinL57but not documented O = Outstmoding item c = connplete with documented apent cG I

= Interface requirement n = not appbcable 5/2?V92.

.4 P.

= DSER page number - no issue number n~

' = Not a DSER item n

Page 17 l

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Sutesk CE Contact a

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B) Determine if Palla/

n n

CETs are CETs need to change Kudrid addressed in to address fypass.

Budaholz 4/20 submittal t

3

^

Methods agreed I

i-Final determi-i nation will be

?

in O-18.

l O-17B Modify CET for Pa!!a c c c n n

n

[;_tr *esolved.

f e

severe accident phen. Rechbolz i.

In%.clual issues l

I considered in uncertaanty

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analysis, 0-18.

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Backend Analyses (BA) ~

m.

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n 19F-Reanalysis or

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c c CE 5/30 Reflect in SSAR Indedes i e BA-1

increased thidness Liu

{ ;=j drywell head:

encertainty f

treatsnent.

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ukimaac capability 4 r-t i

i n

19E Service level C,

Bagchi

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m e c CE 5/30 RcRect in SSAR Should go in I

BA.2 documentation 13=

!o same place as 100% MWR.

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CE P

Address safety factor j }^.

issue f.--

pro:

j.. g C - Confirmatory item s = started S.. = Staff correction y = discussed verbaDy but not documenred l -

= Outstanding item l

O c = connplete with documented agreement l

cu I = Ipeerface requirement n = not applicable 5/28/92 l

.: J P. = DSER pa6e reumber - no issue number

!4 n ' = Not a DSER item -

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Page 18

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ABWR Tasks to wrap esp PRA P A R D,

DSER SSAR Title NRC Contact I n e Next R.a te Ac tion Comments 6

item ' Section Subeask GE Contact a a v

Actor n i i

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y C-6 Flashing during -

Palla c c NRC G/5 Review submittal Analysis venting BucIdiotz docusnented in 4/2/92 submittal to NRC and Carton (ACRS).

O-14 Justify aspc<ts of Palla,

e s CE 6/12, Provide documentation GE agreed to OPPD (Rupture Disk Buchhoh indicating results of raise rupture Setpoet) sensitivity and disk serpoint uncertainty analyses in regard to the OPPD and giving the basis for the setpomt.

O-15.

Net risk of passive Palta c-CE 4/30 Provide documentation Late. New date flooder system Buchhoh indicasmg results of late June.

sensitivity and a:

y uncertainty analyses in

{

"f regard to the passive

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flooder.

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' CCI-cootability '

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v = discussed verbally but not documented O = Outstanding itene c = complete: with documented agreement j

ca 1. = Interface requirement -.

n = not appliabic 5/28/92 t

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P = DSER page number - no issue nusnber if n = Not a DSER item l

Page P.9

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-A) Containment Falla c s GE 4/10 Take cedit for CE has shown

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integrity.

Bu(hholz asumed factor of safety staff early results in calculation. Sutnnit of In>unding

[

to NRC. Lase. To le analpis - work j

dicussed 6/I2 not co nplete but

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Rockville.

results appear to j

i-

. suport no containment failure

-B)

Sourte terms Palla c - - -

See uncertainty Buchhoh i

a nalysis i

f O-Moddy CETs for Falla y

c c en n

Indrvidemi issues I

l 17A

.DCII, FCI, etc.

Buchhoh f

treated ist i

uncertainty

}

f4 analysis.

j Methods agreed.

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1 tem resolved.

i I

t wy O 18

. Uncertainty analysis ---

T$

Cy i.

-A) Survey literature ' Palla e c w n n

n item resched

. m Buchholz j

per 5/26 phone j

! o c=11.

i

-B) Screen events for Palla e c w

n n

n Item resobed

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applicability to Buchhoh W

.ABWR per 5/26 phone 7-calt m

4 C ' - ConErmatory item s = started m,

6-S = Seaff correction v = descusned 44 but not documented 7

O = Outstandmg item c = complete with documented agreement L db I

- seterface reqolies,est n = not applicable 5/28/92 i

P = DSER page number no issue number n = Not a DSER isem q $.

Page 20 l

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s i lZ DSER SSAR Title NRC Cononct I n

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Palla v s CE 6/5 Complete sensitivity Ilst of sensitivity

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sensitivity studies Buchholz studies and document.

studies discussed t

at I/22 meeting I

in Bethesda. To 1

-i be discussed on 4

t l

6/22, Rmkville

.j 2

I

-D) Detailed DCII Palfa c c v NRC 6/5 Review submittal.

Documentation Uncertainty analysis-Buchhoh submitted 1/20.

1

-E) Detailed

. Palla v s s CE 4/30 Complete study -

Late.To be CCf/Coolability Bochholz incorporating NTC discussed 6/12 4

j Uncertainty analysis comments Rockvitic

-F) Cavity floor area -

GE (etc), Item 7 of Buchhok 4/13/92 ACRS letter ia

n on-

,. c G_L.

x w.>

u.

=

f w

i J

J t

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C_,:

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  • T f

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i t

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C = Confirmatory item s = started i ' y,,

o-S = Staff correction v = discussed verbally but not documented i

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O = Outstanding item c = complete with documented agreement i 'c, I

= Interface requirement n = not appHr=hle 5/2S/92

[

P = DSER page number-no issue number n = Not a DSER item Page 21 i

)

4.

I i

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1 ABWR Taah to wrap up FRA k

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P A R-

[ 77, DSER SSAR Title NRC Contact I n e Next Da te Action Comune nts j

3.

item Settion Subtast GE Contact a a y

Ac or n I i

a "R

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eu d

  • O P

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a S Rupture disk Palla -

NRC agrees n

a operation before 24 Buchholz rupnare. disk i

hours not cont failure operation is not containanent failure. Item

+

t..

' Resolved 4

S-12 AWS treatment by Falla e

NRC agrees GE n

n

{

i NRC Buchholz appmach conservative, no

+-her impacts.

I ny Resolved 2

NRC Additions (NRC) f l

NRC-Chapter 22 Severe Accidena Kudrick c-c NRC ?

Write section.

i 1.

C osure Buchholz t

cu 4

w Inform CE if more f

j "2 info needed beyond f

a

, d that identified in 2/20 j

submittal.

9

-fh

. NRC-Accident Palla '

s c

v NRC 6/5 Provide response to GE Early review is n,

2 management Buchholz '

submittal posidwe.- BNI.

,o review an 1

e Progress.

C u.

u,>

1'

[

w>

I 4 -

4 i

C = Confirmatory item a = started l

c,

.o-S = Staff correction 9

v = discussed werbatty but not documented j

O = Outstanding item c - complete with documented agreement i on 1

= Interface requirement n = not applicable 5/28/92 j

.q.

! E2 P = DSER page number - no issue nurnber n = Not a DSER item i

3 :-

Page 22 1'

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ABWR Tsahn to wrap up PRA P A R 27, DSER SSAR Title NRC Contact I a e Next Date Action Comments item Section Subtasi GE Contact a a v Actor o

C'i n I i

G-e

<J, '

o, m:M y-N RC-SAMDA Submitt.d Palla?

E

.TBD, Need the dose :

3 Quirk not table for EP7.

req'd.

simplification.

before 6/30.

Seismic Analynis Beyond Design Bene (SA)

S-5 Fuel assembly Tefly v

E Update SSAR NRC, GE have capacity Un agreed to 1.2g Item resolwd S4 Har-bottom tank Kelly v

G Ma rgins Analysis CE will probably capacity Un reduce value S-7 Diesel generator Kelly v

GE Margins Analysis CE will probably capacity Un reduce value w

' fd -

S4 Electrical equipment Kelly,

y CE Margins Analysis GE will probably aj capacity Uu reduce value tLi I.14 v

G

' Margin s analysis Site specific PRA

,E,$

Confirm electrical Kelly 2

equipment capadties Duncan not required.

in site specsfic PRA Capadties used w

in margins analysis will be input to ITAAC

2-O-21 B Seismic capacities for Palla -

v E

part of margins systems not in Duncan assessment certi5ed design cj C - Confirmatory item s = started o-S. StafTcorrection v = dscussed verbally but not documented O = Outstanding item c = complete with documented agreement

! os

. I - - Interface requirement n = not applicable,

5/28/92

-l P - DSER page number - no issue number n.. = Not a DSER item.

Page 23 i

l

____ _... _ _.~. -.

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DSER SSAR Title NRC Contact I n e Next Date Ac tion Comments item Section Subtask GE Contact a

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S-10 n

Staff will use 11NL Kelly

- - - n n

Seismic PRA not j

j hazard curve Duncan required. Item g

resolved

)

i n

n.

Ihm to treat seismic Kelly r*

n Not required.

j SA-1

.. h=rard uncertainties Duncan Item resolv.-d i

t 1-10 Confirm assumed Kefly v

GE Probably cover

{

j seismic capacities Duncan by PRA input to

[

i and incorporate in ITAAC i

design specs

'4 t

I.11 Modify seismic PRA Kelly

- - - n a

Setsmie PRA not

[

to account for soit Duncan required. NRC i

failures may address by j

site licensing j

StT requirement.

Item Resc4ved

,w 3

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I.12 Plant walidown KeI1y -

--n n

n GE agrees to l

! Lfli Duncan plant walkdown I

y by applicant per EPRI NP-

==[

6041 m.

Item resched c'

r l

I.13 Site specific setsmic Kelly

---n n

n Semnic PRA not P"

PRA by applicant

. Duncan required. NRC 35 may address by

,;ua g

snee licensing 1 ]d, U

req uiremen t.

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Itcam Resched j

C = Confirmatory item s = started cy S = Staff' correction v = discussed verbaRy but not docurnented

- O... Outstanding item c = compacte with documented agreement j

w_

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= Interface requirement n = not applicable 5/28/92 i

..>J

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= DSER page number - no issue omsober 5:

n = Not a DSER itesn Page 24

(

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i ABWR Tasks to wrap esp PRA I

P A R 74 D5ER SSAR Title NRC Contact I n e Next Date Action Comments item Section Suhtask GE Contact a a v Actor

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o, l

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n 1 i

w n

[

en y'e..

r O-19 Address potential for Palla v

NRC ?

Evaluate pro;xul.

Prtgx u d penetration.

Knecht

+

More discussion apprnach isolation valve failure CE n eeded. Nearing provided to NRC r

during scismic event resolu tion.

Dec. 91. Jan. 92 3

4 S-3 Corrut the Kelly v

CE Include correction in CE will correct a

treatment of Vish u '

margins analysis i

firewater in Seismic CI-II CET Margins Analysis Kelly CE 6/30 Subunit analysis to NRC n

SA-2 Frederick I

NRC ?

New words: So IICLPF Probably no S-does not become practial impact.

."d design value.

t 2 - u; Achievabic, but not a Ci.

f regturement.

a

! bh le 1 -

, as

, =

L i

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.m

[JJ/

Other External Hazard '

f; 4

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i S = Staficorrection v = discussed verbally but not documented

[

O = Outstanding item c = cornplete with documented agreement m

4

.c" I

= Interface re<guirement n = not applicabic.

5/28/92 j'

P a DSER page number - no issue number

f

'n

= Not a DSER item 4 -

Page 25 L

ABWR Tasks to wrap up PRA P A R 3-DSER SSAR Title NRC Contact I n e Next Date Action Com ments

<6 itern Section Subtasi CE Contact a a v Actor n 1 i

  • " _ ~

u 3

$0 14 Site specific design KcIly NRC 6/92 NRC will probably

  • Crandchild* of verification: external Duncan address as supplement SECY 0l6 due to SER: Guidance to atamtjune.

(bods, transportation hazards applicans-Classic design analpis alone may be sufficient.

Probably no action by GE.

Interface. (General) (IN) l Be sure PRA s

CE n

  • equirements* and IN.1 r

insights get into

" Interface write up"

{

commequence Analysis (CA)'

-t No NRC feedback on Palla NRC ?

Reflect agreement in Palla/Careway f

o-.

n ili CA-1 site acceptainlity Ca reway SER discussed 4/2.

NRC agrces.

I d

' from weather Item Revhed El standpoint

, w#

Reflect corrected

?

CE n

CA-2 CRAC/ weather Careway treatment ' in

. Fi3 consequence analysis.

h 3 = started 6,

C = Confirmatory item -

v = docussed verbaDy but not documented S = Staff correction O = Outstanding item e = complete with documented agreement C"

I

= Interface requirement n = not appm 5/28/92 a., -

Jp

.P

= DSER page number - no issue number Page 26

s n = Not a DSER item

i-i t

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DSER SSAR

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n, es item Section '

Sobtask CE Contact a a

  • Actor i

a n I i

oJ e

-r

..,3 Ob on

  • Y e

New consequence

?

CE S/30 Update tabular results.

Need NRC n

. CA-3 analysis for Pita Careway apeement on

(

4 CETs mid Junc to make this date.

1 1

1 N

New canequence

?

CE C/30 See atwm i

CA-4 analysis for EPZ Careway i

i I

Appendix 19P (50.34f, PaIIa CE 6/30

[

j n

CA-5 design mids)

Knecht

].

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j P - DSER page number - no issue number i.

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1, t

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I

< TRANSACTION REPORT >

05-20-1992(THJ) 17149 C

F7ECE I UE 3

to.

DATE T i t1E DESTINATION STAT 10t4 P3.

OLRAT ICr4 t10DE RESLt.1 155 5-?8 17:41 4089251193 24 0'07'20' tORM.E OK 24 0*07'20' l

t

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