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=Text=
=Text=
{{#Wiki_filter:-,_____ _ . _ .j-w nR M '. ....,'?+--.-t-_. ) j .- a FMIIAUF77R LA EJCin>IC (.T*C' AVT
{{#Wiki_filter:-
,.~O,j ,i,.T**ch Pott-- At* ale Pev-r Stmttort
____            _ _ . _ .
'D=Ltn, T-n::wr_tvanim.
                    ,
'l 17314..T.ute 27, 1979 Mr. E=oyra M. Grt.r Offica of ineraction- and Inforna ent-Pest t " t I Ifnit?d Sts.t== ffuclemr Pachmtery' Cer :e.in f on 631 Perir. A v en' ta Ung of Prnasia, PA AUkO6 y,UME-BF.'RT,/.?j._E. 9CCUno.1rE - y]Qgo_!ITIcr K].
. .      .
3 Confi r= sir:g 3, S.'J.= L n h*=no * , nnwar= = t i c-t viih we.
          ,
E. r: . Greenn=n, , N icn 1. United Stata. Wuel er Pantalatory C<ml=n ! -n on 6/76/T9
                                                                          ..
*Re ferette e t.
j               -
Dr.*ket No. W .777 N* c h'++t + cgr thits ? a.-d 3 Technical Sp+-irle=* ton F=far-n ar 6 9.2.={p) iLevert 18o. 2-I4-32/1?
w nR M '
" Occtrrenea Da*at June 26,1079
  '
-.Jgentirhntion of Jecury_enp.7 Is,- pnn-- to t M *n str',,i s r-Ti t r*4 57 IP Pn11**t7 ~? ?--9 2 "* ' 151"' l.
                                                                                    +-
er nu .1.ci-t .,w r- --, - .- -..t ( t a- -in i, m 76 am bein acM y?M; but tha Ma a ly
                                                                                            -
                                                                                              ?          .-         t- _. ) j .- a FMIIAUF77R LA EJCin>IC (.T*C' AVT                           ~
                                                                                                            .
                                                                                                              .
                                                                                                                  ,
T**ch Pott-- At* ale Pev-r Stmttort                         '
O,j ,i, D=Ltn, T-n::wr_tvanim.                                 'l 17314
                                                                              .       .T.ute 27, 1979 Mr. E=oyra M. Grt.r Offica of ineraction- and Inforna ent-Pest t " t I Ifnit?d Sts.t== ffuclemr Pachmtery' Cer :e.in f on 631 Perir. A v en' ta Ung of Prnasia, PA             AUkO6 y,UME-         BF.'RT,/.?j._E. 9CCUno.1rE - y]Qgo_!ITIcr3 K].
Confi r= sir:g 3, S. 'J.= L n h*=no * , nnwar= = t i c-t viih we. E. r: . Greenn=n,                                     ,
N icn 1. United Stata. Wuel er Pantalatory C<ml=n ! -n on 6/76/T9
* Re ferette e t. Dr.*ket No. W .777 N* c h '++t + cgr thits ? a.-d 3 Technical Sp+-irle=* ton F=far-n ar           6 9.2.={p) iLevert 18o. 2-I4-32/1?                                                                                                           "
Occtrrenea Da*at           June 26,1079           -
                                                                                                        .
Jgentirhntion of Jecury_enp.7 Is, Pn11**t7 ~? ?--9 2 "* ' 151"' l.
m - pnn--er nuto.t M  1. *n str',,i ci- s tr-Ti .,wt r*4 r- 57-- IP    , - .- -..t   ( t a- -in i, 76 am bein acM y?M; but tha Ma a ly
* I.
* I.
* ts "?t yet - plat-l.
* ts "?t yet - plat-l.                         A. a rwoult of thle analy.fn. 07. vtCoo-te 5mvg .
A. a rwoult of thle analy.fn. 07. vtCoo-te 5mvg. afety factore 1** = tW 5
* afety factore 1** = tW 5
,*4,,ri r 4 t h - . > . .. m w - e- m % ,. . oe t w... n h.-..c t T c.t,-, leen than 1; i.a..mar Tsi.'t dur.Inc
                                                                                                                                ,
4,,ri r 4 t h - . > . .. m w - e   - m % ,. . oe t w... n h.-             ..c t T c. t,-,
leen than 1; i.a.. mar Tsi.'t dur.Inc
* ha d*
* ha d*
* f %n es.1% **rt hq uaka.
* f %n es.1% **rt hq uaka. The 6                               .
The 6..., ,r 4i..,u..r.4 .. fn u. .I ^ *?th* I!MI' 2 M I .5V91&
  .         ., ,r   4i..,u..r.4 .. fn u           . .
,1 m tra Wa+. 3
I ^ *? th* I!MI' 2 M I .5V91&
'a n'; T . s y . e , 1 m t b* Ur-i t ? P L*F S y s t ege-1 ~. e . u,u 3 - sr. -
        ,1 m tra Wa+. 3 'a n'; T . s y . e ,
,- ,. y, n 2.w.m.-, ,- %. v. - w. .
1 m t b* Ur-i t ? P L*F S y s t ege-1 ~. e . u,u 3 - sr. -
t,N s_%g g t e, o. mu 3 mr,- y r-2-1--.-i ,,.. e wt 3 o. :. re ~ ,, 3. -
          ,- ,. y, n 2           .w.m.-,       ,- %. v. - w. .
hTiN2T1 $W* lE.SiF.212=?E
t e, o. mu 3 mr,- y                   r-     2-1--   .-                                         t,N g  s _
--- , . t . 4. . .
i ,,.. e wt 3 o               . :. re ~ ,, 3. -                                         %g hTiN2T1 $W* lE.SiF.212=?E
mps Wh6p g qw x g&.7907196M:. 9 M ,-7 3 l-
    --- , . t . 4. . .                                                       mps Wh6p g
.-*n a . y <y- 3 2. p p
qwx g&
~.p ,r-MA M k JUI g%'An aly s i s o f Occ tr re- e e :
                                                .
The s e = = > === L e s uppa e t e are esther single su; pertg in a piping sygece or ere widely sep3 rated as in th- essa a f t h - o, t t 2 ev rgen c y = = rv i c e w*ter support s .
7907196M                                 :.3 l-9 M ,-   7
The ainala HFf'I Support in = =ch mit is for p iping **
 
                                                                                                                      .             -
* n a . y <y- 3 2. p p                                                                 .
                                                                                                                  ~
-
p ,r An aly s i s o f Occ tr re- e e :         '  MA                    M                    k                    JUI            g%
The s e = = > === L e s uppa e t e are esther single su; pertg in a piping sygece or ere widely sep3 rated as in th- essa a f t h - o, t t 2 ev rgen c y = = rv i c e w*ter support s .       The ainala HFf'I Support in = =ch mit is for p iping **
* oc i a t *d with the test flew p+th which is isointed f m the inicetion ficw p=th e= cept du rin g ins ting and L
* oc i a t *d with the test flew p+th which is isointed f m the inicetion ficw p=th e= cept du rin g ins ting and L
* ent **st i co f f y 6*nlat-d kr initintlan occurr*
* ent **st i co f f y 6*nlat-d kr initintlan occurr*
during t* . .ing.
during     t* . .ing.       OP- o f two **n r F*n c y serv ic e wat?r systM Supports on IFii t I and the on. on I N'i t 3 er* 1e-eated on th- ** rv ice wat er side of a normally clo*ed and t od ed w acu s t velve cennect:ng t bc m rg-n cy ge rv i ca water discharga med = erv 6 cn water dischse;r.                         Faelure in this location wmild an! in te r fe r w i th eme rg ea n aarv it c werer dativerv.                               The n*b-r Unit 2 ==
OP- o f two
**n r F*n c y serv ic e wat?r systM Supports on IFii t I and the on. on I N'i t 3 er* 1e-eated on th- ** rv ice wat er side of a normally clo*ed and t od ed w acu s t velve cennect:ng t bc m rg-n cy ge rv i ca water discharga med = erv 6 cn water dischse;r.
Faelure in this location wmild an! in te r fe r w i th eme rg ea n aarv it c werer dativerv.
The n*b-r Unit 2 ==
* rgan cv **evice water g u:-w rt im suser.)ated with one of the twa r='Nad *n t e v er.s i - leop* wbsch could be 6
* rgan cv **evice water g u:-w rt im suser.)ated with one of the twa r='Nad *n t e v er.s i - leop* wbsch could be 6
* o bs t ad i f n a c e = = ri ty .
* o bs t ad i f n a c e = = ri ty . The einsta CN su;part on and un i. e 15 w g s c<-i S t nl wi t h si single subsyst***
The einsta CN su;part on and un i. e 15 w g s c<-i S t nl wi t h si single subsyst***
and la not en piping cannon to tb                     two wuh s v e t e -S .       The *tt' Ele derwell i rsert t n. system support is nn piptnx at *
and la not en piping cannon to tb two wuh s v e t e -S .
* igai fic 9nt li* tant- *M feveral ri g id wurpo rts cust bos.rd of the anter :--t=*t-m v a l v e wh i c h
The*tt' Ele derwell i rsert t n.
* I rw's wi t h t ha inner 1901stion valves is r*a rm s l l y c l e,cd.                 Th ** t,le     fi c i en c i e s ermutitute 3**s t h an ene p= re-e t of the tot =1 suppoets enslyted.                               The c a lcu l at ions i mathew! used is con *
system support is nn piptnx at *
* rv t t iv a in that ett s t ra , s a r?d lo=le ate co=hiesad to edi t si n the totgi load dur i n g tha D E.,               Ca l e's i s t w n s indicste t h at thee.
* igai fic 9nt li* tant- *M feveral ri g id wurpo rts cust bos.rd of the anter
  *i rppo r t
:--t=*t-m v a l v e wh i c h
* I rw's wi t h t ha inner 1901stion valves is r*a rm s l l y c l e,cd.
Th ** t,le fi c i en c i e s ermutitute 3**s t h an ene p= re-e t of the tot =1 suppoets enslyted.
The c a lcu l at ions i mathew! used is con *
* rv t t iv a in that ett s t ra , s a r?d lo=le ate co=hiesad to edi t si n the totgi load dur i n g tha D E., Ca l e's i s t w n s indicste t h at thee.
*i rppo r t
* w i l l wi t h e r an ! An opere
* w i l l wi t h e r an ! An opere
* i ng b a s i e a a rt h.m a l e lhe Ope rat s em s arid S a fe ty hview Conwittea
* i ng b a s i e a a rt h.m a l e           lhe Ope rat s em s arid S a fe ty hview Conwittea %== eeviewed this data snd concital** that =mfc epe ra t i o - caa enntinoa un t i l awwii fi c wt i oc a can be e s =a n l e t e 3                       l**ign of rhms evdification= h == heaun mad aniific=tlane wi11 he creviate wath6n two wa.ks.         In light o f ther co nt a rv at i v a nature o f the c.aiculat ten aM the very low proh mbi l i ty of e ge n saw even,e occarring during the sho rt rep a s r ,** ri nd , tha OLM         Cr=== i t t ee hss conel w3ed ebat thesa de fi c i-nc i es
%==eeviewed this data snd concital** that =mfc epe ra t i o - caa enntinoa un t i l awwii fi c wt i oc a can be e s =a n l e t e 3 l**ign of rhms evdification= h == heaun mad aniific=tlane wi11 he creviate wath6n two wa.ks.
  ><ve is =inie=1 ==faty s ign i fi c an ce and that the plant can cent imw i* rat ion.
In light o f ther co nt a rv at i v a nature o f the c.aiculat ten aM the very low proh mbi l i ty of e ge n saw even,e occarring during the sho rt rep a s r ,** ri nd , tha OLM Cr=== i t t ee hss conel w3ed ebat thesa de fi c i-nc i es
><ve is =inie=1 ==faty s ign i fi c an ce and that the plant can cent imw i* rat ion.
Correc t _ve Actiert:
Correc t _ve Actiert:
The in=tequate Supports will te ct trected opedit t ous ly but in no case not.t h e e, two w-ek*.I' rc y icu s ra, lures:
The in=tequate Supports will te ct trected opedit t ous ly but in no case not.     t h e e, two w-ek*.
hpo rt Na.
I' rc y icu s ra, lures:
3 74-10/IP verv resly voore, 7[[T-----.. - . _ ~v.T.oii m e ,. r.- k St4t8c"1 bt 4U4* T 4 fit **145FV1 e Z ( ? Y,1h$$',y 73-/', s?, h '
hpo rt Na.       3 74-10/IP verv resly voore, 7[[           T-----.             . - . _ ~
,'.%*4Q*,c:,'x > 4)*"k.g' ^
: v. T. oii m                                               ,. r.
* l+h ,.c..e^ n , , #l LN 4
e St4t8c"1 bt 4U4* T 4 fit **145FV1 e                         Z   -k
.["(\(.%#_~.) (_ M ri d '.}}
( ? Y,1h$$'
                                                                                                  ,y                 73-
                                                                                            /           ', s?, h '
                                                                                                          ,
                                                                                      ,c:,   '
4Q*
                                                                                                      '
* x > 4)
                                                                                ,  "k. h      . .%*
g' ^
* l+
c   ..e
                                                                      ^ n , , #l LN 4
                                                                          .
(.
                                                                      %#
["(\
_             ~
                                                                                                              .) (_ M       ri d '.}}

Revision as of 10:40, 19 October 2019

RO 2-79-32/1P on 790626:as Followup to IE Bulletin 79-02 Revision I,92 Class I Supports Identified as Possibly Failing During Dbe.Caused by Inadequate Design.Mods Will Be Implemented
ML19225A439
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 06/27/1979
From: Ullrich W
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
790621, NUDOCS 7907190331
Download: ML19225A439 (2)


Text

{{#Wiki_filter:- ____ _ _ . _ .

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                                                                          ..

j - w nR M '

 '
                                                                                   +-
                                                                                           -
                                                                                              ?          .-         t-  _. ) j .- a FMIIAUF77R LA EJCin>IC (.T*C' AVT                           ~
                                                                                                            .
                                                                                                              .
                                                                                                                  ,

T**ch Pott-- At* ale Pev-r Stmttort ' O,j ,i, D=Ltn, T-n::wr_tvanim. 'l 17314

                                                                              .        .T.ute 27, 1979 Mr. E=oyra M. Grt.r Offica of ineraction- and Inforna ent-Pest t " t I Ifnit?d Sts.t== ffuclemr Pachmtery' Cer :e.in f on 631 Perir. A v en' ta Ung of Prnasia, PA              AUkO6 y,UME-          BF.'RT,/.?j._E. 9CCUno.1rE - y]Qgo_!ITIcr3 K].

Confi r= sir:g 3, S. 'J.= L n h*=no * , nnwar= = t i c-t viih we. E. r: . Greenn=n, , N icn 1. United Stata. Wuel er Pantalatory C<ml=n ! -n on 6/76/T9

  • Re ferette e t. Dr.*ket No. W .777 N* c h '++t + cgr thits ? a.-d 3 Technical Sp+-irle=* ton F=far-n ar 6 9.2.={p) iLevert 18o. 2-I4-32/1? "

Occtrrenea Da*at June 26,1079 -

                                                                                                       .

Jgentirhntion of Jecury_enp.7 Is, Pn11**t7 ~? ?--9 2 "* ' 151"' l. m - pnn--er nuto.t M 1. *n str',,i ci- s tr-Ti .,wt r*4 r- 57-- IP , - .- -..t ( t a- -in i, 76 am bein acM y?M; but tha Ma a ly

  • I.
  • ts "?t yet - plat-l. A. a rwoult of thle analy.fn. 07. vtCoo-te 5mvg .
  • afety factore 1** = tW 5
                                                                                                                               ,

4,,ri r 4 t h - . > . .. m w - e - m % ,. . oe t w... n h.- ..c t T c. t,-, leen than 1; i.a.. mar Tsi.'t dur.Inc

  • ha d*
  • f %n es.1% **rt hq uaka. The 6 .
  .          ., ,r    4i..,u..r.4 .. fn u           . .

I ^ *? th* I!MI' 2 M I .5V91&

       ,1 m tra Wa+. 3 'a n'; T . s y . e ,

1 m t b* Ur-i t ? P L*F S y s t ege-1 ~. e . u,u 3 - sr. -

         ,- ,. y, n 2           .w.m.-,       ,- %. v. - w. .

t e, o. mu 3 mr,- y r- 2-1-- .- t,N g s _ i ,,.. e wt 3 o . :. re ~ ,, 3. - %g hTiN2T1 $W* lE.SiF.212=?E

   --- , . t . 4. . .                                                       mps Wh6p g

qwx g&

                                               .

7907196M  :.3 l-9 M ,- 7

                                                                                                                      .             -
  • n a . y <y- 3 2. p p .
                                                                                                                  ~

- p ,r An aly s i s o f Occ tr re- e e : ' MA M k JUI g% The s e = = > === L e s uppa e t e are esther single su; pertg in a piping sygece or ere widely sep3 rated as in th- essa a f t h - o, t t 2 ev rgen c y = = rv i c e w*ter support s . The ainala HFf'I Support in = =ch mit is for p iping **

  • oc i a t *d with the test flew p+th which is isointed f m the inicetion ficw p=th e= cept du rin g ins ting and L
  • ent **st i co f f y 6*nlat-d kr initintlan occurr*

during t* . .ing. OP- o f two **n r F*n c y serv ic e wat?r systM Supports on IFii t I and the on. on I N'i t 3 er* 1e-eated on th- ** rv ice wat er side of a normally clo*ed and t od ed w acu s t velve cennect:ng t bc m rg-n cy ge rv i ca water discharga med = erv 6 cn water dischse;r. Faelure in this location wmild an! in te r fe r w i th eme rg ea n aarv it c werer dativerv. The n*b-r Unit 2 ==

  • rgan cv **evice water g u:-w rt im suser.)ated with one of the twa r='Nad *n t e v er.s i - leop* wbsch could be 6
  • o bs t ad i f n a c e = = ri ty . The einsta CN su;part on and un i. e 15 w g s c<-i S t nl wi t h si single subsyst***

and la not en piping cannon to tb two wuh s v e t e -S . The *tt' Ele derwell i rsert t n. system support is nn piptnx at *

  • igai fic 9nt li* tant- *M feveral ri g id wurpo rts cust bos.rd of the anter :--t=*t-m v a l v e wh i c h
  • I rw's wi t h t ha inner 1901stion valves is r*a rm s l l y c l e,cd. Th ** t,le fi c i en c i e s ermutitute 3**s t h an ene p= re-e t of the tot =1 suppoets enslyted. The c a lcu l at ions i mathew! used is con *
  • rv t t iv a in that ett s t ra , s a r?d lo=le ate co=hiesad to edi t si n the totgi load dur i n g tha D E., Ca l e's i s t w n s indicste t h at thee.
  *i rppo r t
  • w i l l wi t h e r an ! An opere
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