ML20206G565
| ML20206G565 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah |
| Issue date: | 11/04/1988 |
| From: | NRC OFFICE OF SPECIAL PROJECTS |
| To: | |
| Shared Package | |
| ML20206G037 | List:
|
| References | |
| NUDOCS 8811220316 | |
| Download: ML20206G565 (3) | |
Text
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!N NUCLEAR REGULATORY COMMISSION 3.,, ~3,!I wAsoctoN. o. c. aosss
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SAFETY EVALUATION REPODT BY THE OFFICE OF SFECIAL PROJECTS t
J EwPLOYEE CONCE:N ELE *ENT REPORT OP 30P01, ADE00ACY OF PROCEDURES" 1
TENNESSEE VALLEY AUTHORITY I
SE000 YAW NUCLEAD POWER PLANT UNITS 1 & 2 t
00CVET NOS. 50-327 AND 50-328 I
I 1.
Subject l
r Cate:ery:
Operations (30000)
Subcategory:
Maintenance (30800) l Ele ert; Adequacy of Procedures (30801) i i
6 I
Tre basis f:r Ele eat Re;;rt 30501, dated March 16, 1987, are the
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j fel10 ir; em:1 yee :: : erns:
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C:r:ern w,-55-004: A:e:va:y of Mi-10.43 Cen:ern WAS-56-001: Ade:va:y of MI-6.20 1
C:Pr.een Ta';-55 C;2: M91-9 coes n:t s;ectfy t: :.e f:r screws less than l
40.
1 i
Cen:ern TAs-55-004: Lucricatten Of geared lintt switches en MOVs not i
i pr:;erly inspected.
t i
C: :ere 50 -ii-0C9-004:
Mainte-aece instev:ti:as a*e vn: lear and de ret I
crevide a:e:vate instra:tien.
Cetails kne.n to l
l
- QTC, withheld due
- o c:nficentiality.
No
+
i further information may te released.
Nuclear I
Fe.er de: art ert concern.
1 1
l C:n:ern SQP-S6-014-001:
Feceman :: ret always su:p:rt the craft in providing the'n with eve *ytning tney Peed to CO l
the j:b.
e.g..
require 0 : Pints.
Nu*Iear EC.er i
- n*ern.
Cl Fas PC fur *"er inf:r*atien.
i a' !ss.e Sv**ary A.
{0*:ern MAS-ii-204 westi:ne 15e ade:ua y O' MI-10.43, Relve i:atten f
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I* i s *a * *te a s *
- e i r str. ti 0n a *resse gereci*aII)
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- t * : t ;'s. * * *. ' * ; ; e ' t a a: e, al *
- s * !* s
- e 's /
':lt' * :
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- e e s- '
s.
- .est *; :.se.
j mso316 es1104 7
'kDOCK 0500 I
P i
o 2
1 5.
Con:ern.YAS-56-031 vestioned the ade:uacy of MI 6.20, Conf t;ura: ten Control 0 ing v intenan:e A:tivities.
inis raintenance instru:ti:n a
addressed.he subje:t of configuration ::ntrol caring the ainte a :e tr:utleshooting pro:ess via a data package cover sheet an
- .ff;u-rati:n :na ;e cata sneet.
C.
Oca:ern TAK-55-002 questioned the adecua:/ of M&Al-9 te:ause it ei cet s:e:ify t:rcue values for s:rews less than slo.
P!.AI-9, Ti;ntening, Ins:e:: ion, an: 00:u entation of Bolted Connections, is the ::;nt: ant ::sfi:aticns and a:ditions instruction.
3.
- r:ern TAN-55-C04 cuestioned the ade:vacy of the irsce:tice/
1:stien of ge:re: li.it s it:nes on MOVs.
MI-10.46, t.imito ;ue V:::e C: erat:rt; ntrol Vs15e is the tegnizant mainteaance instr.*ti:n.
C.
0:n=ern 500-56-009-004 cuestioned the adecuacy/:larity of raintena*:e instru::1:.s in ;ereral.
Tnere are 213 maintenan:e innru::icns liste: in :e Se:w:>an maintenan:e instru:tions index.
5 0 v.- 1, Se: :>aa N.: lea
- taa Yaintenar:e Feogram, provides tre stancard
- a:tice f:r writte-aintenan:e instru::1:ns (MI) in paragraph 5.0.
C: :e n 50?-5f-0;;-031 Ouestiened the ::rpleteness of the work
- a:.a;e tan : e a:ete*s get frem tee foreman (ard plan ers) l see:iti:ai'y :e re: wired :*ints.
50Y-2, Maintenan:e Ma age ent Sy s
- e"'
0 3 r t r a i s t*e w:"A re:Wes*/=:rk pa:kage pr: ess at Se:a:yan.
.. 5 '..,. o..
a.
vis-i5-::::
v:-;0.15 mas eee e:la:e
- . MI 4 5.2.1 f or ;elia :e v:t:rs, M:-15.4.1 f:r A1115-Chairers/5 e e e illis motors, and v:- 5.6.1 f or Westingacuse ret:rs.
This :ro:edure replacem nt nas snif e:
e latri:sti:n of rot:rs fr:9 a :iant generi: a: preach to a i
s:e:i'i; wea::r a::rea:h.
1 5.
vi5-Ei-:01:
N*
Se:ti:n 5.4.2.2 ceft es t*e re:vice-erts f:e 8
te :: a y alte-ati:ns ra:e to :lart e:vi: ent during tre :lesn::ti q.
- N:: 55-017, ::r:u:t of C:eratices, Chapter 13, C: rte 1 of Te :o se>
v::3 #':::':n
- r:,' des ;u':elices for
-:.cles ::tia;.
VI-i.00, iev. !C =ates C::::er 10, 1956, reets
- n : e require ests :f tre NOAY and tre gui:elines of IN:0 55-017.
he NRC has :erfer e: a revie. Of tre N;AM a;ainst 10 CFR 50 A::e-:ix B am 1:eetifie: n:
cis~re:a :ies.
v ',1 : - 9 was :0 pletely re r': ten in Ce:e :er 'di5 re#'s::
- e ea ele::*4:31 tor:uiag 1-0
- ited
- ~e:ti:as
'e:.i'e e'*.s in t"e realy revised G-35 ste:i'i:stices.
Se:ti:n 3.5 ~
- 3*35 sta*.es **at ::reas si:e s;0 ce $
3er, used iP *a 'e s:Ii;es 10 te**'*a*.'
- 5 5'a
Oe t';*te*e 10
- e ::'*t 3: a*'**
t~e ' :=
- .'*;.a'.ai
!-e ;.+" *;* i:'ea5 ** ;"'.
r
-15 it: 4:
g m..=
- i
o l
3 0.
TAK-55-004: MI-10.46, steps 6.1.4 through 6.1.7 provices f:r tre l
lutrication of the geared limit switches and also penvides for C; hold / ins;ection ::ints.
t.imitorque corporatten as well as Se:a:yah l
Nuclear Plant has experienced grease hardening pr:blW95 in hi;n te :erature en.te:n ents with the lubri: ant (Beacon 325) origieally furniste: in ; eared limit saitches. TVA initiated a WMR t: ::nwer L
the grease in the geared limit s itches of all limitercue operators t: F0311e Grease 23 ahich was recer-ended by limiter;ue.
This l
re: wire: restart item is a1rost co plete at Sequoyah,
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$0:-56-CC9-004:
ine TVA hv;G perferred a revte of eatntenan:e at E*
s Cerry, Se:. yah, a: Watts Bar duricq the spring and su-er cf
?i RO fia:ing #E*2 states "$ *e instructions were n0t Clea*.
1936.
V
-ere a:t :Or:ise, anc cid not contain the infor.tatien ne:essary for esers ::. Oerstae: a-d perfor w:rk activities effe:tively"; it e-l
- evice
- fcur eaa-;les see:ific to Sequoyah. The Manager of Nw: lear r
F:.ee :rev':ed t,nis hvRG re: ort to his operattens staf f ard aske: f:r cerre:,ive a : t i e r.
- lans ey Nose-ter 1956.
Tne Sequeyan Nuclear l
Terf
-a :e :ia (revise ) 4:kne. ledges the co-mitrent to enna :e M s (see ra;es : -3 at: -59).
Fai.tenance manage ent at Seau:yah nas
- e.ei::e: a :r:;-a-f:e M1 enman:e ent, which completes the e-a :e e ; :r:g a*
in t o chases:
a higher risk cate; ry in 8 L
-:-tas a-: a 1:aer ri s( cate;:ry in 21 nontns (after startue). This s: e:.'e is tei ; tra:(e: en MATS (TVA's canagement actien tra: ting l
syste-).
I F.
5;D-56-J14-C01.
Se:w yah utili:es forter --aft personnel as ;1aree-s
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t e -: i
+: vested by tre A: vR :r::ess, including ; e l
3..e s: :f t e
-:-(
a:*a;e.
The olanre cly inclu:es tre re:vice:
- a ie;5 e.:rk :a:kage wren he s ws the9 up to previce l
irstra:ti: s for ; at ea:ia;e
%:r al'y the planner will enly
- wice t~e : a 4 ; ru-:er either in the -:rk pa:Lage er in the wors
'astra:ti:rs.
S e for ~an aa: res; nsible :raftman sign the Instra:-
j ti:e ;eview sneet verifyi g that t*e testry:tions inclu:e are a:e:. ate f:- :ee': -ir; tre
- rk.
The i-:1asien of tne re:essary
- i ts in tre *:ri :a:Aa;e is e:
at:resse: in 5 3-2.
TVA feels trat
- e
- !aerers a e ;revici g tne c:rrect, raterial fer the crafts en to
- e ': - tne.4:.
5:ecifically, in tae :ase cf drawings, eit*er t*e
(
- e e:
- ca.ir; :- t e Ora.i ;r.-:er is s.:: lie:.
L IV.
C:aciusten r
Tae
',R-staff te' e.es st : e TVA 4*sestigaven :( the ser:ee s was i
a:e:. ate, a-: t ei es:'.t':-
f t e :: : eras as :es:*.te:
t-Ele e--
I j
- e
- : t :: :O :' 's a::e:ta: 1e f:r restart.
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