ML20090F770
| ML20090F770 | |
| Person / Time | |
|---|---|
| Site: | Crane, Davis Besse  |
| Issue date: | 10/11/1977 |
| From: | Roe L TOLEDO EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20090F466 | List:
|
| References | |
| TASK-01, TASK-1, TASK-GB B&W-0208, B&W-208, NUDOCS 8307070190 | |
| Download: ML20090F770 (4) | |
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- October 11, 1977 uu;;.-: s:.u I
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Seri:11 o. 391 s
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t Docket No.30-346 w m.m.
p.,
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!!r. Ja:ses C. K.sppler
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Regional Direc:ar. ?.e:Lon II:'
f.
O!! ice of Inspec-ion & Inf=r:::t==
U.S. I ucle:r F.c;ula:ary C::=.issi:n 799 Roosevel: F.a ad Clen Enya..nli oi.s 60137
. e; Des: Mr. Teppler:
This le :e 1977.
supersedes =y le::er :s you en thi:
subi,ect da:ed Oc:ober S.
- In a=:ordance vi:h 10 Cy1
?>.
- 21. 21 (b).
a es=pont.:nt ins::lled is the hvi.s-nesse ::cclear ?:ve:chis is a report o' a defe The c==ponene i=volved fs the governce on the auxiliary f ced p sea:i=a Uni: go.~ 1.
u.ps.
'The auxiliary feed pu=;s ve:e su;;1ied *sy lyre:
- 5-
- The s:e:m driven pu=p turbine ves su;;,ited by TerJ::ks=n'?;=p :;ivisten..
Jacksoa.
2n, turn.. the turbine ::vernor v:s ry Corpora:i=a :o Syron
../
by 1.*codward Cove:ns Cet;: 7 su; plied :o 74:ry Carpera:Len Co=pany r.otor. type PO-PL. which has a server.= tar c::::o1 =cpl f.
(-
ne Ilec:;ic The defe :
.. conditions and preven:In: involves a'psten:ial !st ths ::vernor to bi cer::La
- he :v:bine f;n= c==in; up :o design speed.
. The operatin:
procedures for this equip =en:
be placed in the hi::h spa:t s:cp posi:f== pri=r :s shu::in; d=va th called for :h: :;ove:r.c; :o t u r bir.e.
Inv44:i;::ica h:2 thei.
tha:
e vith the I:cise servass:ar drivir.-
a:: Ins:
the high.spect.stop. : rissli;r.=en for:e is 4; of the governor linkage. This =1: li;r.::en: force crea: plied :s :he T-ba:
the governor to hint n:
es. potentini for l
a speed posi:13: less than desi;n speed upsn a.
turbine scartup. This e.isalist.:en:
' cavernor to bind :nd this =is:li;r.=:::farca does not always cause :he
'4
.the Zodine servo =stor*:vay !:s= cha hi;h speci s:op. forte can be renowet b I
The safc:y h::::d which could be c;e::ed is :ha poten:ial for both a 4
fary feed psps'co f:13*:o cas:
uxil-up to dest;n speed upon s::::vp. This.
could, retuit' fo*:.substanti:1 loss of zusiliary f eedva c; flev :o tha stena ;cnerators whe.-
. f:*##s'idrii'icasc.:ehe:or c. such flov vas rer,stred. This in cura could cause c,
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oolan:
.v ~ st'i.gnt!Icantcbelling.-im.the rese:or ceslantsystes pr:ssure/:::iperature :: nsien:5 sad
. ;.,,k; W,y.chent.v.
.<.. wer systc* If substantial decay
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-2 The ev:1u ::ne end :dentifiestica of this def ec:*vas provided :o :
Sep: cst,c; 30, 1377 and w s *discu: sed with Mr. T.1:arp::e; of ye ;
,3
. on Septe:ber 30. 1577.
s u e ggeg i,
,There sec :vo iden:ie:1 auxiliary feed pusps with,the :urbine :sverna dese:1 bed above, ins: lled in the Davis-tesce **uclear Power sc::
4 1:o. 1.
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The correc:iv:
removs1 of pertions of the pecusac,ie. speed-settin = ch: is:s th:: the ;overnor vill prop 5dly.~ respond :o speed de=and signal
- o assu:e pneumatic speed se::d=; =echaniss was r.cre s.
The func:f onia; of the ;overnor bec :se th an ince ::1 par: of the
\\ con:rol.
This =edift:ar,1c gover.or esplayed icev :c:c; i
I v:s =, cec =;11shed 2: the t.*oedvard Cave: s; t,ompany facili:fes. Subseque.: tas:ing :: :hese f::111:ics has pe ved the proper fus::Icni=; of the gaver. r.
'j ' p;ior to the curren: uni:
The =sdifica:ic.s vere ec=pleted.
fus::fo ing on a== ilia:7 s:cas, and :hes:triup., "he governors have basa :as:=
prope:
d*
be comple:cd du.::in;.'.:sde I of the curren:
surveillance :es: vill-s:Ar:up.
Yours verf c:uly, g:.~,/ GL;
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I' No. 2 Turhias Con:,:o1 Yalve and hi;h pre t.urhis e-ssure wg..-E 1830,Turbise-;enera:or :aken off the line to steam leak. Raacts: cri.ical a about repai:
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and Safecy Tea:ures Ac:ua-1==Ac
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- 8 Sep:. 25 041.5 - 3:arted ?las:
Cocidev:
C545 - C =pleted 1:1:
1a.1 su:vey of C=::ti =sh:
Sept. 26 C* ea::vp :nd :: pal:s 'ae:*.=.'
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Sept. 30 Cc=pla:ed repair and repla:.=ent of =1:::
on No. 2 5:aas Cenera:or
- issu14:1e Oct. 3 Voodvard Ccver::oAuxiliary Teed;v=o C:verrers re=
Ta::c:7 set: to *
- b Qvench Tank 7.u;:sre *:ise :eplaced e
. Ce:. 5 Ye::ed Zaac:c Coolas: Sys:e= asd ru:
'h=;s :p data,co evals.z:e s:stus of pt :ps andInac ge seals.
Cet.' &
5:a :ed 7eedva:e Coolan: Syste hes:v;C'etnup in ;;c; ara:ica fer 7.eac:or Ce:. 7 1830 - Received i."1C a;; n.al := ;:nceed vi:h s:artup p12n:
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.i 1.520 - Chechou: of Au :1112:
Auxiliary 5:ss=) e==7 7ecipe=ps (ustag
- 14
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Acte:pted to tes:
p;cs:uri:e peue Oc t., s 12... Uesvecessful due to elsetrical cir:ui: relief p:oble s.
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oct. 13 Crosby :n on ette a ain vorhin:
S. *
- n ?c.e: 7.elief valve.
Ine: cased 2C5 r:cssure to c:=plete tes-in:
of R: actor Cocian: ?cp s...
p Oct. 13 to:'picted repairs :o ?:ver Relief *!alve and tested w
,1: sucesssfully Oct. 16 Ce:ple:ed tes:i: cf Aux 111::*y '7eedpeas.
Coverso t had..been.=odified by Woodvard to prevent s:ichi=g
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,u 1206 - leactor critical 4
2315 - Rolled the curbise Dc:. 17 0207 - Centra:c s).ch:: i:ed f
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g n.25 - Generator off :he line fe J
cae: speed ces:s.
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t 1805 - Cc===::s? ?. sac::: s*ce:d: a f:icni: ?:ver Shu:devn Test.
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C200.- Cc=pleted Uni: ?:ve Shu:d:*. Tes:.
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4 0000 - C:=:enced ?.aac:c: 5:artup 1C36 - Cener.t:or Sp:hronind
- Oc:. 19
,112 A - Centrato: off line to re:tir stes= leak be:veen No.1 C:n::cl **alve a:d E.? Turbins l
Oct. 20 2;&*. - Centra:o: :yn chrent:=d t
3 Cet. 23 1003 - A half-:
Tip of 573C3 caused ice stet:
level resul:in-in full 5710s ::1p. Zaactor gsasta:
. trip sed. STAS Oct. 17 2 n 3 - 2.sactor Cri:ical C::. 23 115,1 - Cenera::: Syn:h:enized
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