ML20094B829

Special Rept:On 950919,loose Parts Monitoring Sys Channel 1 Declared Inoperable Due to Erratic Preamp Bias Indication. Work Request Written to Investigate & Repair Channel

ML20094B829
Person / Time
Site:	Catawba
Issue date:	10/25/1995
From:	Mccollum W DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9511010308
Download: ML20094B829 (2)

Text

y ..

~ .;.-. ,

~...,.g.~..~~

. , . . - . ~ . . _ . , _ . . . -

!) 3 s j

- -k z

i

, .<"4

. s. -

gjg , -,

m R ' ,

kbb s .

l Dtrlhwer Company -

o inunuR ik Cw.ww,Jr.

'?

%y)

? CataubaNu&arGenerationikpartment kicihesident . , '

L >>% ,  :: 4800 Cwwordthod '- .(8W)3]lJ:M Ollicel

, L York,Schil5 ..

., ' '(82)33/35l'at _

y

. - me ,

O

-- October ;25', 1995

!.U. S.' Nuclear Regul'atory Commission g ATTN 7. Document, Control' Desk'

;Washingtonj

.DC 20555

, ' Subjecti Catawba ; Nuclear Station', . Unit'l

. Docket No.'50-413

% Special: Report i Vibration-and Loose Parts Monitoring System

-w a.

l. lOn September ' 19, L 1995, . Unit 1; Loose Parts . Monitoring '(LPM). System Channel 1' J(Lower' Reactor:Incore Tube 19) was declared inoperable due to an erratic preamp l

biaslindication. LPH System Channel 2 and channel 3'(Lower. reactor tubes 22 and 28)' are- operable and provide coverage for the' lower ~ reactor vessel collection -

+

region.-

The alarming. capability of Channel.1 was disabled and this channel was logged as

' Item ~#C1-95-01807'in tho' Technical ~' Specification Action Item Log (TSAIL)., Work request: 95041075. has been written to investigate and : repair this _ channel.

fProblem Investigation Process:(PIP) 2-C95-1255 is'the tracking document for this -

failure.

'Since this ' channel has - been in>perable for 30 days; the report is submitted pursuant' Selected Licensee Commitment 16.7-4. and Technical Specification 6.9.2.

' Sincerely,

..y ,

./

W. R.'McCollum?

KEN /SR102595. LPM

-o

' Attachment t

'xcs:S.'D(Ebneter,' Regional' Administrator

, fR. E.1 Martin,;ONRRi  ;

'k$ .R. J.'Freudenberger,LSRI:

~f' '

V /

0 ,

( 0 / ,(h..

L ~'F D lPDR:9511010308'951025 ADOCK 05000413 ,

,& ;SiMy n, n_,_PDR, * , .

k .

-@Mw >

f D s e A".' - _. - - -- __. ' _

M <.t. i) i.

, 1, r.

! ,I 4' ? i u:

ji9 i r f--: .t 1

,  ::O  :

j7, ,

y ' :U. '8. Nuclear ' Regulatory Comission'-

N

, .l october 25, 1,995- .

i

-i' Page 21 ..4' ,,..

o,

.i bxo t ELL , -

~EC050 MSRB Staff' - -L'EC05N K.:R. Nicholson. -

PIP'l-p95-1511 .,--

SL Abbey. - - CNO3SE _ .

CN-801.01 --

CN02DC NCMPA-A SREC-PMPA NCENC' ,

.:i.-

I

\

t

'l i

t ..

I' f, '- -

-i e l

4 r

e f

1 j

1' 1

8 "  ? \ ik, E

9 T

M se j.3

• ,i'.

""f,_.

,_ l' " s I Y 1 8 g g

' r.{ ~b ,, .

.,