ML20247G838
| ML20247G838 | |
| Person / Time | |
|---|---|
| Issue date: | 09/12/1989 |
| From: | Berlinger C Office of Nuclear Reactor Regulation |
| To: | Foley W PARAMETER, INC. |
| References | |
| CON-NRC-05-85-157, CON-NRC-05-85-157-02, CON-NRC-5-85-157, CON-NRC-5-85-157-2 IEB-86-002, IEB-86-2, NUDOCS 8909190150 | |
| Download: ML20247G838 (5) | |
Text
~
y
[-
September 12, 1989 y
Mr. Walter JJ Foley Principal Investigator y
Parameter, Inc.
'13380 Watertown Plank Road Elm Grove, WI 53122 Re: NRC~ Contract No. 05-85-157-02 PAR: NRC-157-02, Task 037 Sir:
SUBJECT:
ACCEPTANCE'0F FINAL DRAFT OF THE CLOSE0VT REPORT FOR HRC BULLETIN 86-02 We have reviewed the Final Draft of the closecut report for NRC Bulletin 86-02, as submitted on August 25, 1989, and find it to be acceptable subject to the
, changes as indicated in the marked-up copy enclosed.
The markups are consis-
. tent with discussions you have _had with Peter Wen of sqy staff on September 8, 1989.
Please' prepare the final report incorporating the enclosed changes. The document may then be considered as the final report.
Sincerely, Original Signed 0" Carl H..Berlinger Carl H. Berlinger, Chief Generic Communications Branch Division of Operational Events' Assessment Office of Nuclear Reactor Regulation
Enclosure:
1 As stated DISTRIBUTION w/ enclosure FJMiraglia, NRR CERossi, NRR CHBerlinger, NRR PCWen, NRR-JACaIvo,-NRR CHaughney, NRR PDR-DCS DOEA R/F OGCB R/F PCWen R/F C.46 A Fi}f O
- SEE PREVIOUS CONCURRENCES Ch
[Ah' I{ k 0GCB:D0EA:NRR C/0GCB:DOEA:HRR I
PCWen CHBerlinger 09/11/89 09////89 j))6,1
- !Ran?R""'"
ESTER 60PY
,hh NRC-05-85-157 PNU 4
Enclosure
'Tk licewase. ks cowniM A I"Pemed Wnteme inhtion l
(p 14-p and FS-14-4tO hr Q tpo Qscigd AWitckS4... Tbase wota.no4 instractsh L we<e preparaA for perfor-cag 4 chu4:q caligt,#,w,ir
+ke witch norpoM4..[5FE ATTAcWM i CONCLUSION
{h[
ou ] ie i
' de of he ull ti a
i s
t hh i
u h
OR vi hes n
it a
s t
5 se um ary ite 1 an
- 3) in ca th t
c c
n o
bu let n h ve een r olv d.
Browns Ferry 1.2.,3 h
(Uni _t 2 clos _ed, / hits ig3 open)
'The ili 7u mit a
1 sem i
g In na e
a in ruc 'ons' whi u re rep ed or wo ff ted sui he pe orm nd ec ca Ibr lo of etp int st ted y
the til y."
ff' ie se ci m
gir is rov'ded o
sure r
imb e su' ch it ut ec' 1 era or ai ' ne.J The NRC/ Region inspection r' aport closed the bulletin (Jr Unit 2
~
~
on the basis of commitments and held it open for fn'its 1 and 3
The suitches had not yet been installed in units 1 and 3 of this plant *C!fextended s tdown (see the followup item on d age C-1). I{
vnada.hus,hemama.
"D # '" ""
LaSal1e 1.2 pit-(Closed) widt Because the proble was identified initially at LaSalle,,2, corrective actions uere planned and checked with particular care.
Each f::f'ify had about 60 affected suitches.
The NRC/Regiongafetygvaluationconcludedthatshort-term actions were acceptable for LaSalle 2.
The NRC/ Region g
inspectors accepted the utility's c mmitments to a long-term corrective action plan and closed th bulletin.
Oyster Creek 1 bt (Open)
See the follouup item on age C-1 Sequoyah 1.2 (Closed)f
/
in taA Wt See /' Jot e 7 on / age B-7.
The t en SOR swit ches of concern Per-N4 i+v uere modif }ied.
' i ne neM i nn "n~4 it N. r i '" i "
r cr+ w ing, i
h #'O5 South Texas 1,2 (Closed),
Seepote5on[heSORsuit)cesatthisplant age B-7.
Bulletin corrective requirements do not apply to t because are not covered by the plant /echnical /pecificatiorf.
The two
. safety-related suitches per Tm 217 vere tested *and were out of t olerance.$
- t found not to drift e
0, aa bas:s.1 *e. stac aam ev 1"*
- L< m >% * ^2*E
-finh. A,y &_ bcw kad. A*M[act'4h AWresM d ian idemtif.'4.4 bg the kiladin. 3
- a. :
f'b 3,.
1
's CONCLUSIOtt
" he mu c.cri ty of licensees have not instal ed the specifie" J Gr differential pr-scure switches. series 100.or 103. at
+1 otraca] equipment important to cafety The following brief summaries of actions in response to the bulletin at the il facilities, which have SOR Model 100 or 103 switches in critical systems. (see summary items 1 and 3) indicate that the concerns of the bullet $n have been resolved.
e
_-_-.m__
._-_____.____.__.-.._-.m_.____.m-
_.--____.___m__
[
UNP 2 (Closed)
Four SOR p/
uitches were installed at this facility.
No significant setpoint shift was found.
Augmented testing of these switches was planned and uas to'be included in the training program.
This testing at reactor pressure showed that the instruments exhibited a well-defined shift that could be compensated for during instrument calibration.
The NRC/ Region inspectors approved the testing but required a sample test in about a year to-assure the drif t was constant.
en 4
f
.l' l
l M 9754b#
L APPENDIX C 4,< A RV-40 Proposed Follouup Items Besico_1 Drsier_Cterk_1 The 5E dated 12-15-86 evaluates the utility esponses of 05-27-86. 07-30-86, 09-23-86 an 10-14-86 According t o t he SE, the utilit y's request to remov the top DPS 66 SOR suitches from the long-t erm scope of the has been def rred until the
~
results of monthly tests are provided and eviewed.
In addition,a all long-term corrective actions y & NIC/ h;i _
14 5GR m ui.e >
naA
+n
'A\\r :::ri:d forp evieu b;
- 5:QtRJ.
jnencr4n-t
- s' y,4 c, 4hc.aili+v'e remn1 4mg e44nne i,k4rk c e h o A d_l e f i n inclopg ggme renlmemmen4e i>44h mnminn eve +9mg-t e ra
.ggg3co_31 ue NQ & b at Bccwas_Escry_143
- 5 The ut ilit y'sresponse of 07-20-87.i.s evaluated in Inspection Report 88-28 (12-09-88) for all three units.
The bulletin is closed for Unit 2 only.
Al inspection report is needed to thebulletinfor/aternits1and3beforestartup[because close out h a r e -em gt e n d e d r e f u e ' i ^ : cutesen.
A d in m Mh C-1