Steam Generator Task Force/ Nuclear Regulatory Commission ... · TSTF-510 † Upcoming Changes to...
61
Steam Generator Task Force/ Nuclear Regulatory Commission Biannual Meeting February 16, 2012 United States Nuclear Regulatory Commission Official Hearing Exhibit In the Matter of: Entergy Nuclear Operations, Inc. (Indian Point Nuclear Generating Units 2 and 3) ASLBP #: 07-858-03-LR-BD01 Docket #: 05000247 | 05000286 Exhibit #: Identified: Admitted: Withdrawn: Rejected: Stricken: Other: NYS000392-00-BD01 10/15/2012 10/15/2012 NYS000392 Submitted: June 19, 2012
Transcript of Steam Generator Task Force/ Nuclear Regulatory Commission ... · TSTF-510 † Upcoming Changes to...
Stea
m G
ener
ator
Tas
k Fo
rce/
Nuc
lear
Reg
ulat
ory
Com
mis
sion
Bia
nnua
l Mee
ting
Febr
uary
16,
201
2
Uni
ted
Stat
es N
ucle
ar R
egul
ator
y C
omm
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on O
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earin
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In th
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atte
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Ent
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Nuc
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Ope
ratio
ns, I
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(Indi
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Gen
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Uni
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and
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ASL
BP
#:07
-858
-03-
LR-B
D01
D
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t #:0
5000
247
| 050
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6 Ex
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Iden
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Adm
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R
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St
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n al
gorit
hm in
to th
e au
to
li
tlb
14©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
anal
ysis
tool
box
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Dev
elop
men
t of s
tand
ardi
zed
proc
ess
for d
eter
min
ing
exam
inat
ion
tech
niqu
eeq
uiva
lenc
yex
amin
atio
nte
chni
que
equi
vale
ncy
–O
bjec
tive:
Dev
elop
a c
onsi
sten
t and
cos
t effe
ctiv
e m
etho
d to
ev
alua
te s
yste
m p
erfo
rman
ce, e
valu
ate
tech
niqu
e pe
rform
ance
and
t
dt
tb
titt
ti
lto
dem
onst
rate
sub
stitu
te c
ompo
nent
equ
ival
ency
•D
raw
an
equi
vale
ncy
betw
een
exis
ting
Exa
min
atio
n Te
chni
que
Spe
cific
atio
n S
heet
s (E
TSS
) to
plan
t spe
cific
con
ditio
ns
–A
ppro
ach:
Dev
elop
a p
roce
ss th
at w
ill te
st fo
r an
equi
vale
nt
mag
netic
fiel
d w
ithin
the
tubi
ng a
s a
basi
s fo
r est
ablis
hing
eq
uiva
lenc
y be
twee
n tw
o si
mila
r yet
diff
erin
g ac
quis
ition
set
ups.
•C
ompa
re e
ssen
tial v
aria
bles
of E
PR
I ETS
Ss
to s
ite s
peci
fic E
TSS
s
15©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Tec
hnic
al R
epor
ts Is
sued
•Mar
ch 2
008:
Tec
hnic
al u
pdat
e re
port,
“Dev
elop
men
t of a
P
roce
ssfo
rDet
erm
inin
gE
xam
inat
ion
Tech
niqu
eP
roce
ssfo
rDet
erm
inin
gE
xam
inat
ion
Tech
niqu
eE
quiv
alen
cy” 1
0151
26.
–D
esig
ned
and
prod
uced
a m
aste
r set
of f
law
ed s
ampl
esg
pp
that
cou
ld b
e us
ed to
per
form
exa
min
atio
n te
chni
que
equi
vale
ncy
chec
ksP
tild
tti
hi
thtt
hdi
fid
–P
ract
ical
dem
onst
ratio
n sh
owin
gth
atth
e m
odifi
edte
chni
ques
can
gen
erat
e si
gnal
s fro
m s
elec
ted
calib
ratio
n tu
be fl
aw e
quiv
alen
t to
thos
e ge
nera
ted
by
the
qual
ified
tech
niqu
es
16©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Tec
hnic
al R
epor
ts Is
sued
•Mar
ch 2
009:
Tec
hnic
al u
pdat
e re
port,
“Ste
am G
ener
ator
M
anag
emen
tPro
gram
:Dev
elop
men
tofS
tand
ardi
zed
Man
agem
entP
rogr
am:D
evel
opm
ento
fSta
ndar
dize
dP
roce
ss fo
r Det
erm
inin
g E
xam
inat
ion
Tech
niqu
e E
quiv
alen
cy”1
0185
57–
Rev
iew
var
ious
EP
RI q
ualif
ied
tech
niqu
es c
ompa
red
to
field
tech
niqu
es w
ith m
odifi
ed e
ssen
tial v
aria
bles
Ei
it
hi
ljtif
iti
td
bd
–E
ngin
eerin
gte
chni
calj
ustif
icat
ion
–a
stud
yba
sed
on
eddy
cur
rent
theo
ry to
just
ify e
quiv
alen
cy–
Doc
umen
tthe
effe
ctth
atch
ange
sin
esse
ntia
lvar
iabl
esD
ocum
entt
heef
fect
that
chan
ges
ines
sent
ialv
aria
bles
tole
ranc
es h
ave
on th
e re
sulti
ng e
ddy
curre
nt s
igna
l –
Allo
wab
le to
lera
nces
wer
e es
tabl
ishe
d fo
r mas
ter s
et o
f fl
17©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
flaw
s
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Acc
epta
ble
Ran
ges
Est
ablis
hed
for M
aste
r Set
of F
law
sB
bbi
•B
obbi
n:–
Raw
vol
tage
from
the
(4) x
20%
FB
Hs
mus
t be
> 80%
of q
ualif
ied
tech
niqu
e–
FBH
nor
mal
ized
vol
tage
s w
ithin
+40
% o
f qua
lifie
d te
chni
que
–FB
H p
hase
with
in +
20°
of q
ualif
ied
tech
niqu
e
•M
RP
C:
–R
aw v
olta
ge 1
00%
Axi
al E
DM
>80
% o
f qua
lifie
d te
chni
que
Nli
dlt
ithi
20%
flif
id
th
i–
Nor
mal
ized
vol
tage
s w
ithin
+20
% o
f qua
lifie
dte
chni
que
–E
DM
not
ch p
hase
with
in +
10°
of q
ualif
ied
tech
niqu
e
18©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Tec
hnic
al R
epor
ts Is
sued
St
b20
10Fi
lt
“St
Gt
•Sep
tem
ber2
010:
Fina
l rep
ort,
“Ste
amG
ener
ator
Man
agem
ent P
rogr
am: D
evel
opm
ent o
f Doc
umen
tatio
n fo
r E
xam
inat
ion
Tech
niqu
e E
quiv
alen
cies
”102
0992
.q
q–
Add
ition
al fi
eld
data
wer
e co
mpa
red
to th
e E
PR
I ETS
S
data
f–
Add
ition
al d
ata
wer
e co
llect
ed u
sing
the
mas
ter s
et o
fca
libra
tion
stan
dard
s pr
oduc
ed in
the
first
pha
se–
Add
ition
alda
tado
cum
entin
gth
eef
fect
that
chan
ges
inA
dditi
onal
data
docu
men
ting
the
effe
ctth
atch
ange
sin
esse
ntia
l var
iabl
es to
lera
nces
hav
e on
the
resu
lting
ed
dy-c
urre
nt s
igna
l
19©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Acc
epta
nce
Ran
ges
Mth
dl
•Met
hodo
logy
–Te
chni
que
shou
ld b
e co
nsid
ered
equ
ival
ent I
f all
com
pare
dfla
ws
are
with
inth
eac
cept
ance
rang
eco
mpa
red
flaw
sar
ew
ithin
the
acce
ptan
cera
nge
–Te
chni
que
is N
OT
equi
vale
nt if
onl
y th
e no
rmal
izat
ion
flaw
is w
ithin
rang
e; re
solu
tion
is re
quire
d–
If so
me
com
pare
d in
dica
tions
are
out
side
the
acce
ptan
ce ra
nge,
eva
luat
e th
ose
flaw
resp
onse
s an
ddo
cum
entt
here
ason
fort
hedi
ffere
nce
and
docu
men
tthe
reas
onfo
rthe
diffe
renc
e
20©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Eddy
Cur
rent
Ess
entia
l Var
iabl
e To
lera
nces
•Rev
isio
n 8
of th
e P
WR
SG
Exa
min
atio
n G
uide
lines
Alt
tM
thd
fB
bbi
Pb
dR
tti
Pb
•Alte
rnat
eM
etho
dfo
rBob
bin
Pro
be a
ndR
otat
ing
Pro
beTe
chni
ques
for d
raw
ing
equi
vale
ncy
–A
ppen
dix
“H”w
illin
clud
eac
cept
able
rang
esA
ppen
dix
Hw
illin
clud
eac
cept
able
rang
es–
Incl
ude
a re
fere
nce
to th
e th
ree
Tech
nica
l Rep
orts
–C
ontra
ctor
s re
spon
sibl
e fo
r the
thre
e Te
chni
cal
Rep
orts
will
be a
sked
to p
artic
ipat
e in
the
effo
rt to
in
corp
orat
e th
e fin
ding
s of
this
pro
ject
into
the
new
gu
idel
ines
guid
elin
es
21©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
AVB
Pos
ition
Ver
ifica
tion
•Mee
ting
Febr
uary
14,
201
2–
Wes
tingh
ouse
–A
RE
VA
–M
HI
Bab
cock
and
Wilc
ox–
Bab
cock
and
Wilc
ox–
EP
RI
–U
tility
repr
esen
tativ
esU
tility
repr
esen
tativ
es•R
evie
wed
Nor
th A
nna
and
Mih
ama
even
ts a
nd c
ausa
l fa
ctor
s•D
iscu
ssed
pos
ition
ver
ifica
tion
tech
niqu
es a
nd
man
ufac
turin
g im
prov
emen
ts in
the
mid
80’
s•R
esul
tsfro
mth
em
eetin
gw
illbe
eval
uate
dby
the
E&
RTA
C
22©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
•Res
ults
from
the
mee
ting
will
beev
alua
ted
byth
eE
&R
TAC
Tube
Sup
port
Pla
te B
lock
age
•Dur
ing
the
June
201
1 E
xecu
tive
Mat
eria
ls M
eetin
g it
was
t
dth
tSG
TFid
tt
ftb
fli
requ
este
dth
atS
GTF
pro
vide
sta
tus
oftu
befo
ulin
gpr
ojec
ts to
the
NR
C te
chni
cal s
taff
•SG
MP
Pro
ject
“Dyn
amic
Ana
lysi
s of
a S
team
Gen
erat
or”
jy
y(2
009-
2013
)•D
evel
op a
ste
am g
ener
ator
dyn
amic
sim
ulat
ion
mod
el to
ev
alua
teth
eef
fect
ofde
posi
tacc
umul
atio
nat
tube
supp
ort
eval
uate
the
effe
ctof
depo
sita
ccum
ulat
ion
attu
besu
ppor
tpl
ates
on
stea
m g
ener
ator
wat
er le
vel s
tabi
lity
•Ben
efits
•Ass
essm
ent o
f tub
e su
ppor
t pla
te d
epos
it lo
adin
g on
op
erat
iona
l par
amet
ers
(wat
er le
vel o
scill
atio
ns) f
or
seve
rals
team
gene
rato
rdes
igns
23©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
seve
rals
team
gene
rato
rdes
igns
Tube
Sup
port
Pla
te B
lock
age
•SG
MP
Pro
ject
“Pre
dict
ion
of S
G T
SP
Flo
w B
lock
ages
” (2
010-
2012
)•D
evel
op a
mod
el to
pre
dict
the
bloc
kage
of b
roac
hed-
hole
op
enin
gs in
topm
ost S
G T
SP
s • B
enef
itsB
enef
its•Q
uant
ify th
e pr
obab
ility
that
a p
lant
will
exp
erie
nce
a ce
rtain
leve
l of T
SP
bloc
kage
dur
ing
futu
re o
pera
tion
•Red
uce
the
unce
rtain
ty in
the
estim
ated
tim
e ne
cess
ary
to re
ach
utili
ty-d
efin
ed T
SP
bloc
kage
leve
ls
24©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Rat
io o
f SG
MP
Proj
ects
for A
lloy
600M
A T
ubin
g to
Mor
eA
dvan
ced
Mat
eria
ls
•Dur
ing
the
June
201
1 E
xecu
tive
Mat
eria
ls M
eetin
g it
was
re
ques
ted
that
SG
TFpr
ovid
eth
era
tioof
indu
stry
effo
rtfo
r
toM
ore
Adv
ance
dM
ater
ials
requ
este
dth
atS
GTF
prov
ide
the
ratio
ofin
dust
ryef
fort
for
Allo
y 60
0MA
SG
s to
that
for t
he n
ewer
/repl
acem
ent S
Gs
to
the
NR
C te
chni
cal s
taff
–A
ppro
xim
atel
y 90
% o
f SG
MP
effo
rt is
app
licab
le to
bot
h or
igin
al A
lloy
600M
A S
Gs
and
new
er/re
plac
emen
t SG
s w
ithA
lloy
600T
Tan
dA
lloy
690T
Ttu
bing
with
Allo
y60
0TT
and
Allo
y69
0TT
tubi
ng–
Abo
ut 1
0% o
f effo
rt is
focu
sed
on n
ewer
/repl
acem
ent
SG
s on
ly
25©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Top
of T
ubes
heet
Den
ting
•Pla
nt E
xper
ienc
e•D
entin
g at
the
top
of th
e tu
besh
eet h
as o
ccur
red
in 1
do
mes
tic(A
lloy
690)
and
10fo
reig
npl
ants
(wor
ldw
ide)
dom
estic
(Allo
y69
0)an
d10
fore
ign
plan
ts(w
orld
wid
e)•3
(Allo
y 80
0 an
d A
lloy
600T
T) o
f the
11
plan
ts h
ave
SC
C in
dica
tions
at d
ents
•D
entin
g is
ass
ocia
ted
with
a h
ard
slud
ge p
ile•S
GM
P P
roje
ct “T
op o
f Tub
eshe
et D
entin
g” (2
010-
2014
)•R
evie
w p
lant
exp
erie
nce,
mat
eria
ls o
f con
stru
ctio
n,
chem
istry
Lite
ratu
rere
view
oflo
wal
loy
stee
lcor
rosi
on•L
itera
ture
revi
ewof
low
allo
yst
eelc
orro
sion
•Fin
ite e
lem
ent a
naly
sis
usin
g ty
pica
l den
t 3-D
pro
file
26©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Top
of T
ubes
heet
Den
ting
•Ben
efits
•Ide
ntify
pla
nt o
pera
ting
cond
ition
s an
d m
aint
enan
ce
prac
tices
that
lead
toto
pof
tube
shee
tden
ting
prac
tices
that
lead
toto
pof
tube
shee
tden
ting
•Inv
estig
ate
the
exte
nt to
whi
ch p
oten
tial m
itiga
tion
met
hods
wou
ld b
e ex
pect
ed to
redu
ce th
e ris
k of
SC
Cp
•If n
eede
d, u
pdat
e se
cond
ary
wat
er c
hem
istry
gu
idel
ines
27©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Fore
ign
Obj
ect T
ask
Forc
e U
pdat
e
•Dur
ing
the
Dec
embe
r 201
1 E
PR
I Dro
p in
Mee
ting
it w
as
requ
este
d th
at S
GTF
pro
vide
sta
tus
of fo
reig
n ob
ject
tren
ds
•A s
mal
l ind
ustry
gro
up w
as fo
rmed
Jun
e 20
11 to
upd
ate
fore
ign
obje
ct tr
end
data
that
was
firs
t pub
lishe
d in
200
5Th
2005
tth
ltf
id
tff
tt•T
he20
05 re
port
was
the
resu
lt of
an
indu
stry
effo
rtto
stud
y w
hat w
as c
onsi
dere
d an
adv
erse
tren
d in
fore
ign
obje
ct e
vent
s be
twee
n 20
02 a
nd 2
005
and
resu
lted
in
jth
e fo
llow
ing
SG
MP
act
ions
–S
ever
al S
GM
P p
roje
cts
wer
e fu
nded
for f
orei
gn
obje
ctde
tect
ion
sizi
ngan
dan
alys
isob
ject
dete
ctio
n,si
zing
,and
anal
ysis
–A
dditi
onal
gui
danc
e w
as a
dded
to th
e In
tegr
ity
Ass
essm
ent G
uide
lines
28©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
–Fo
reig
n O
bjec
t Han
dboo
k w
as p
ublis
hed
Fore
ign
Obj
ect T
ask
Forc
e U
pdat
e
•The
obj
ectiv
es o
f the
cur
rent
task
forc
e is
tode
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.
engi
neer
edsa
fegu
ards
–M
ain
stea
m li
ne o
r fee
dwat
erlin
e br
eak
Aug
ust 2
011
Eart
hqua
ke
•Ste
am g
ener
ator
edd
y cu
rrent
and
vis
ual i
nspe
ctio
ns w
ere
fd
bth
itpe
rform
ed o
n bo
th u
nits
•No
dam
age
iden
tifie
d•B
oth
units
back
onlin
e•B
oth
units
back
onlin
e
46©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Aug
ust 2
011
Eart
hqua
ke -
Bas
is fo
r the
R
equi
rem
ent
Req
uire
men
t•T
he fo
rced
out
age
guid
ance
in th
e cu
rrent
revi
sion
of t
he
Exa
min
atio
n G
uide
line
was
bas
ed o
n ite
m 6
.e. o
f R
egul
ator
y G
uide
1.8
3, R
evis
ion
1, J
uly
1975
•Typ
ical
pla
nt T
ech
Spe
cs (T
S 5
.5.9
) als
o ha
d th
ese
it
tilth
dl
td
tf
requ
irem
ents
unt
ilth
ey w
ere
dele
ted
as p
art o
fim
plem
enta
tion
of p
erfo
rman
ce b
ased
insp
ectio
n re
quire
men
ts in
TS
TF-4
49 R
evis
ion
4 (o
r equ
ival
ent)
q(
q)
•The
cha
nge
of T
ech
Spe
cs w
as re
quire
d by
NR
C G
ener
ic
Lette
r 200
6-01
, and
the
NR
C s
ubse
quen
tly w
ithdr
ew
Reg
ulat
ory
Gui
de 1
.83
•The
ste
am g
ener
ator
Tec
h S
pecs
are
now
per
form
ance
ba
sed
with
are
quire
men
tto
mai
ntai
ntu
bein
tegr
ityan
d
47©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
base
dw
itha
requ
irem
entt
om
aint
ain
tube
inte
grity
and
mee
t stru
ctur
al a
nd le
akag
e pe
rform
ance
crit
eria
Aug
ust 2
011
Eart
hqua
ke -
Futu
re M
odifi
catio
n of
R
equi
rem
ent
Req
uire
men
t
•Rev
isio
n 8
of th
e E
xam
inat
ion
Gui
delin
es w
ill de
lete
this
pr
escr
iptiv
ere
quire
men
tpr
escr
iptiv
ere
quire
men
t
•Int
erim
gui
danc
e w
ill be
dev
elop
ed to
add
a p
erfo
rman
ce
base
dre
quire
men
tto
the
Inte
grity
Ass
essm
entG
uide
lines
base
dre
quire
men
tto
the
Inte
grity
Ass
essm
entG
uide
lines
for t
he fo
llow
ing
even
ts:
–S
G P
rimar
y-to
-sec
onda
ry le
akag
e le
adin
g to
pla
nt
shut
dow
n
–S
eism
ic o
ccur
renc
e
–Lo
ss-o
f-coo
lant
acc
iden
t req
uirin
g ac
tuat
ion
of th
e en
gine
ered
saf
egua
rds
48©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
–M
ain
stea
m li
ne o
r fee
dwat
erlin
e br
eak
Tie
Rod
Bow
ing
•Onc
e th
roug
h st
eam
t
idtif
id
gene
rato
ride
ntifi
ed n
ew
tie ro
d bo
win
g
–S
GA
tiero
dbo
win
g–
SG
Atie
rod
bow
ing
rem
aine
d th
e sa
me
(12)
–Id
entif
ied
tie ro
d bo
win
g in
SG
B fo
r the
fir
sttim
e(7
)fir
sttim
e(7
)
–N
o tu
be w
ear
asso
ciat
ed w
ith ti
e ro
d
49©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
asso
ca
ede
odbo
win
g
In S
itu P
ress
ure
Test
s Si
nce
Last
Mee
ting
•One
US
pla
nt p
erfo
rmed
3 fu
ll tu
be in
situ
pre
ssur
e te
sts
May
2011
May
2011
–O
ne in
dica
tion
exce
eded
leak
age
scre
en–
PW
SC
CU
-Ben
dax
iali
ndic
atio
nat
H07
+10.
4,1.
37P
WS
CC
UB
end
axia
lind
icat
ion
atH
0710
.4,1
.37
volts
–Tw
o tu
bes
wer
e te
sted
pre
vent
ivel
y du
e to
per
mea
bilit
y va
riatio
n–
Test
s w
ere
run
up to
and
incl
udin
g 3d
PN
ole
akag
edu
ring
test
s–
No
leak
age
durin
gte
sts
50©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Wes
tingh
ouse
Nuc
lear
Saf
ety
Adv
isor
y Le
tter
(NSA
L-12
-01)
(NSA
L12
01)
•Iss
ued
Janu
ary
5, 2
012
Af
itil
itt
db
tld
dti
ith
•Afo
reig
n ut
ility
repo
rted
base
met
alde
grad
atio
nin
the
prim
ary
chan
nel h
ead
in o
ne o
f thr
ee s
team
gen
erat
ors
•Uni
thas
been
inop
erat
ion
sinc
e19
87an
dth
eco
nditi
onU
nith
asbe
enin
oper
atio
nsi
nce
1987
and
the
cond
ition
was
not
iced
in F
all 2
011
•The
are
a of
deg
rada
tion
was
in b
otto
m o
f the
cha
nnel
hea
d ne
ar th
e ce
nter
bow
l dra
in a
nd d
ivid
er p
late
•The
vis
ually
obs
erve
d de
grad
atio
n is
loca
ted
only
in o
ne
SG
and
only
onth
eco
ldle
gsi
deof
the
chan
nelh
ead
inS
G,a
ndon
lyon
the
cold
leg
side
ofth
ech
anne
lhea
din
the
vici
nity
of t
he c
entra
l dra
in li
ne
51©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Wes
tingh
ouse
Nuc
lear
Saf
ety
Adv
isor
y Le
tter
(NSA
L-12
-01)
(NSA
L12
01)
•The
larg
est d
efec
t in
the
clad
ding
is 7
.7 m
m (0
.3 in
ch) x
14
4m
m(0
6in
ch)b
yul
traso
nic
exam
inat
ion
14.4
mm
(0.6
inch
)by
ultra
soni
cex
amin
atio
n•T
here
are
five
oth
er s
mal
ler o
bser
ved
defe
cts
in th
e cl
addi
ng in
the
regi
on o
f the
dra
in li
ne
gg
•The
deg
rada
tion
in th
e ch
anne
l hea
d ba
se m
etal
is a
vo
lum
etric
loss
in th
e fo
rm o
f one
larg
e ca
vity
whi
ch
exte
nds
toa
max
imum
dept
hof
28m
m(1
1in
ches
)ex
tend
sto
am
axim
umde
pth
of28
mm
(1.1
inch
es)
•The
are
a of
the
degr
adat
ion
in th
e ba
se m
etal
is ir
regu
lar i
n sh
ape
and
exte
nds
a m
axim
um o
f 75
mm
(3.0
inch
es) f
rom
p
()
the
edge
of t
he d
rain
line
, with
a m
axim
um a
zim
utha
lext
ent
of 2
85°
abou
t the
cen
tral d
rain 52
© 2
012
Ele
ctric
Pow
er R
esea
rch
Inst
itute
, Inc
. All
right
s re
serv
ed.
Sket
ch o
f the
Cha
nnel
Hea
d B
ase
Met
al C
avity
G
eom
etry
and
Size
Geo
met
ryan
dSi
ze
53©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Wes
tingh
ouse
Nuc
lear
Saf
ety
Adv
isor
y Le
tter
(NSA
L-12
-01)
(NSA
L12
01)
•The
cau
se o
f the
cla
ddin
g de
grad
atio
n is
not
cur
rent
ly
know
nan
dm
ayha
vebe
enan
isol
ated
occu
rrenc
ekn
own
and
may
have
been
anis
olat
edoc
curre
nce
•The
re h
as b
een
no o
ther
repo
rted
degr
adat
ion
or c
ladd
ing
issu
es in
this
par
t of t
he S
G in
oth
er S
Gs
p•R
ecom
men
datio
ns•
Per
form
a v
isua
l ins
pect
ion
usin
g bo
wl c
amer
as w
ith d
ry S
G
cond
ition
the
next
time
prim
ary
man
way
sar
eop
enco
nditi
onth
ene
xttim
epr
imar
ym
anw
ays
are
open
•In
spec
t the
cha
nnel
hea
d cl
addi
ng, d
ivid
er p
late
-to-c
hann
el
head
wel
d, a
nd w
hen
acce
ssib
le, t
he w
eld
at th
e to
p of
the
chan
nelh
ead
bow
ldra
intu
bew
ithin
the
mou
seho
lech
anne
lhea
dbo
wld
rain
tube
with
inth
em
ouse
hole
•Th
e in
spec
tion
can
be li
mite
d to
the
appr
oxim
ate
area
incl
uded
w
ithin
a 9
14 m
m (3
6 in
ch) r
adiu
s ce
nter
ed o
n th
e ve
ry b
otto
m
ofth
ech
anne
lhea
dbo
l
54©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
ofth
ech
anne
lhea
dbo
wl.
•In
spec
ting
for g
ross
def
ects
Wes
tingh
ouse
Nuc
lear
Saf
ety
Adv
isor
y Le
tter
(NSA
L-12
-01)
(NSA
L12
01)
•If n
o de
grad
atio
n is
det
ecte
d du
ring
the
initi
al v
isua
l in
spec
tions
docu
men
tthe
insp
ectio
nre
sults
and
cont
inue
insp
ectio
ns,d
ocum
entt
hein
spec
tion
resu
ltsan
dco
ntin
ueth
is in
spec
tion
each
tim
e pr
imar
y m
anw
ays
are
open
•If d
egra
datio
n is
det
ecte
dg
•If t
he in
side
sur
face
of t
he c
hann
el h
ead
has
been
m
achi
ned
smoo
th, u
se d
ye p
enet
rant
test
to e
stab
lish
exte
ntof
degr
adat
ion
exte
ntof
degr
adat
ion
•Use
UT
from
out
side
of t
he s
team
gen
erat
or to
de
term
ine
if an
y w
asta
ge o
f the
cha
nnel
hea
d ba
se
yg
mat
eria
l has
occ
urre
d•P
erfo
rm e
ngin
eerin
g as
sess
men
t
55©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Wes
tingh
ouse
Nuc
lear
Saf
ety
Adv
isor
y Le
tter
(NSA
L-12
-01)
(NSA
L12
01)
•Wes
tingh
ouse
ana
lysi
s ju
stifi
ed a
noth
er c
ycle
of o
pera
tion
fort
hefo
reig
npl
anta
sth
ere
was
suffi
cien
tbas
em
etal
fort
hefo
reig
npl
anta
sth
ere
was
suffi
cien
tbas
em
etal
rem
aini
ng•A
n E
&R
TA
C/W
estin
ghou
seph
one
call
took
pla
ce o
n g
pp
1/11
/201
2–
SG
MP
has
dis
sem
inat
ed th
e N
SA
L to
all
utilit
ies
rega
rdle
ssof
SG
man
ufac
ture
rre
gard
less
ofS
Gm
anuf
actu
rer
–B
owl c
amer
as th
at a
re c
urre
ntly
use
d fo
r bow
l sca
ns
shou
ld b
e ad
equa
te to
look
for s
imila
r iss
ues
q–
Util
ities
sho
uld
treat
the
NS
AL
as O
pera
ting
Exp
erie
nce
and
addr
ess
it in
eith
er th
eir c
orre
ctiv
e ac
tion
prog
ram
or
thi
Dd
tiA
t
56©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
thei
rDeg
rada
tion
Ass
essm
ents
NEI
03-
08 D
evia
tions
•Tw
o pe
rman
ent d
evia
tions
S
tG
tE
iti
Gid
liR
7–
Ste
amG
ener
ator
Exa
min
atio
nG
uide
lines
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–S
ingl
e pa
ss a
uto
anal
ysis
Ste
amG
ener
ator
Sec
onda
ryW
ater
Che
mis
try–
Ste
amG
ener
ator
Sec
onda
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ater
Che
mis
tryG
uide
lines
, R7
–W
et la
y up
ste
am g
ener
ator
sam
ple
frequ
ency
•Tw
o sh
ort t
erm
dev
iatio
ns–
Ste
am G
ener
ator
Exa
min
atio
n G
uide
lines
, R7
–P
SI p
rior t
o hy
dro
–S
team
Gen
erat
or S
econ
dary
Wat
er C
hem
istry
G
uide
lines
R7
57©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
Gui
delin
es,R
7–
Wet
lay
up s
team
gen
erat
or s
ampl
e fre
quen
cy
NR
C S
lides
58©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
-(Y n. l!J
Add
ress
Pub
lic Q
uest
ions
/Com
men
ts
59©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
-(Y n. l!J
AD
JOU
RN
60©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
-(Y n. l!J
Toge
ther
Shap
ing
the
Futu
reof
Elec
tric
ityTo
geth
er…
Shap
ing
the
Futu
reof
Elec
tric
ity
61©
201
2 E
lect
ric P
ower
Res
earc
h In
stitu
te, I
nc. A
ll rig
hts
rese
rved
.
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