ML17056A069
| ML17056A069 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 06/12/1989 |
| From: | Slosson M Office of Nuclear Reactor Regulation |
| To: | Burkhardt L NIAGARA MOHAWK POWER CORP. |
| References | |
| TAC-73043, NUDOCS 8906260153 | |
| Download: ML17056A069 (8) | |
See also: IR 05000220/1988201
Text
I -~aC CELEBRATED
DlSTR1BUTION
DEMONSTRXTlON
SYSTEM
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:8906260153
DOC.DATE: 89/06/12
NOTARIZED:
NO
DOCKET
t
FACIL:50-220 Nine Mile Point Nuclear Station, Unit 1, Niagara
Powe
05000220
UTH.NAME
-
AUTHOR AFFILIATION
OSSON,M.M.
Project Directorate I-1
ECIP.NAME
RECIPIENT AFFILIATION
BURKHARDT,L.
Niagara
Mohawk Power Corp.
SUBJECT:
Requests
addi info re 890328
response
to unresolved
items in
Safety
Sys Functional Insp Rept 50-220/88-201.
DISTRIBUTION CODE:
DFOlD
COPIES
RECEIVED:LTR
I ENCL I
SIZE:
TITLE: Direct Flow Distribution:
50 Docket
(PDR Avail)
NOTES:
RECIPIENT
ID CODE/NAME
INTERNAL: NUDOCS-ABSTRACT
EXTERNAL: LPDR
COPIES
RECIPIENT
LTTR ENCL
ID CODE/NAME
1.
1
REG
F LE
01
1
1
NRC
1
1
COPIES
LTTR ENCL
1
1
1
1
h
R
I
D
S
h
NVK 'I0 ALL RIES" KXlPIEVIS
PLEASE HELP US TO REDUCE HASTE.'OFZACT 'IHE DOCUMEPZ CONTROL DESK,
RXN Pl-37
(EXT. 20079)
KO EIZMZNAZE YOUR NAME PBCH DISX%GHUTIGN
LISTS B3R DOCUMENIS YOU DON'T NEEDt
D
S
TOTAL NUMBER OF. COPIES
REQUIRED:
LTTR
5
ENCL
5
s ~
~p,R Rfoo
+
~
0
O
/
Vl
CII/
I
gO
++*++
Docket Ho. 50-220
UNITEDSTATES
NUCLEAR REGULATORY COMMISSION
WASHINGTON, D. C. 20555
June
12,
1989
Mr. Lawrence Burkhardt III
Executive Vice President
Nuclear Operation
Niagara
Mohawk Powe~ Corporation
301 Plainfield Road
Syracuse,
13212
Dear Mr. Burkhardt:
SUBJECT:
SAFETY SYSTEMS
FUNCTIONAL INSPECTION
FOLLOI<UP (TAC NO. 73043)
By letter dated March 28, 1989, Niagara
Mohawk responded
to the unresolved
items noted in the NRC's Safety Systems
Functional
Inspection report
50-220/88-201.
Me have reviewed your response
and have determined that
the following further information is needed
to continue our review.
I.
Unresolved
Item 88-201-2A.
The licensee
should verify that the
revised
pump performance
curves
have been
reviewed to ensure
that design
inputs are consistent with system testing results.
2.
tlnresolved
Items 88-201-2B.
The licensee's
response
states
that
NPSH calculations
indicate that
pump cavitation is expected
to exist
for 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
The licensee
should provide
a verification from the
pump manufacturer that the
pumps will be able to perform their
safety function during and following the
6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of cavitation.
An
analysis of expected'ibration
should
be performed.
The effects of
any expected vibration should
be evaluated
with. respect
to the other
system
components.
In addition, expected
operator
actions during
and following the cavitation should
be evaluated.
In addition to
the above,
the licensee
should discuss
the capability of other plant
systems
to cool the core following a design basis accident
and the
loss of the core spray
pumps.
3.
Unresolved
Item 88-201-2C.
The licensee
should evaluate
the water
hammer analysis
and verify that it is a bounding analysis.
Specifically the licensee
should discuss
the initiation and transit
of the air volume through
a partially open isolation valve and the
core spray spargers.
In addition, the licensee
should discuss
how a
water
hammer would be identified and what operator action would be
expected
should
a water
hammer occur in this system.
8906260i53 89'06i2
ADOC< 05000220
8
PNU
gPo
I
'1(
p
~
The licensee
should also discuss
whether
any spurious initiations of this
system
have occurred
and whether
any water
hammer
was evident.
The reporting and/or recordkeeping
requirements
of this letter affect fewer
than ten respondents;
therefore
OHB clearance
is not required under
PL 96-511.
Upon receipt of -this letter please
provide an expected
response
date.,
Sincerely,
p
Original signed by
Harylee H.'losson,
Project Hanager
Project Directorate
I>>1
,Division,.of Reactor
Projects I/II
DISTRIBUTION
~,,
7
EJordan
NRC
8 Local
BGrimes
PDI-1 Rdg
ACRS (10j
SVarga
JJohnson
BBoger
CVogan
HSlos son
RCapra
[INSPECTION
FOLLOMUP 73043]
NAHE :CVogan
W
QWW'WWW
~
D]
/14/89
- H losson/bah:RCapra
W
WW
&
~
&
W
0
~ 6/iZ/89
.6/ti/89
OFFICIAL RECORD
COPY
W
\\
OW
~
~
~
~
p,
S
I )
~)
)
Il ~
It ~ P)
I 33
3
3 ~
I 33 I
~
~
~
3
3
~
I
3
I
I ~ 4 I
~
I
'
~
\\
I~
3
I
'
~
I'
I I
= 333-
'
Mr. L. Burkhardt IrI
Niagara
Mohawk Power Corporation
Nine Mile Point Nuclear Station,
Unft Ho.
1
CC:
Mr. Troy 8. Conner, Jr., Esqufre
Conner
5 Wetterhahn
Sufte
1050
';".47 Pennsylvanfa
Avenue,
N. H.
k'ashfngton,
D. C.
20006
Mr. Frank R. Church, Supervisor
Town of Scriba
R.
D.
P2
Oswego,
13126
Mr. James
L. Willis
General
Supt.-Nuclear
Generation
Niagara
Mohawk Power Corporation
Nine Mile Point Nuclear Station
Post Office Box 3~
Lycomfng,
13093
Resident
Inspector
U. S. Nuclear Regulatory Comofssion
Post Office Box 126
Lycomfno,
13093
Mr. Gary 0. Wilson, Esqufre
Niagara
Mohawk Power Corporation
300 Erie Boulevard West
Syracuse,
13202
Regfonal Administrator,
Region I
U. S. Nuclear Regulatory Corenissfon
475 Allendale Road
King of Prussfa.
19406
Ms.
Donna
Ross
New York State
Energy Office
2 Empire State
Plaza
16th Floor
Albany,
12223
Mr. Kfm Dahlberg
Unit
1 Station Superintendent
Nine Mile Pofnt Nuclear Station
Post Office Box 32
Lycoming,
13093
Mr. Peter
E. Francisco,
'Licensing
Niagara
Mohawk Power Corporation
301 Plainfield Road
Syracuse,
13212
Charlie Donaldson,
Esoufre
Assistant Attorney General
New York Department of Law
120 Broadway
10271
Hr. rraul D. Eddy
State of New York
Department of Public Service
Power Division, System Operations
3 Empfre State
Plaza
Albany,
12223
Pt
V'i