ML16342D001
| ML16342D001 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 07/28/1995 |
| From: | Gwynn T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| References | |
| NUDOCS 9508070117 | |
| Download: ML16342D001 (18) | |
See also: IR 05000275/1995098
Text
REGULATORYI~&fÃ$$1NESQ EDtXMftIIMTION SYSTEM
( RIDS )
ACCESSION NBR:9508070117
DOC.DATE: 95/07/28
NOTARIZED: NO
DOCKET I
FACIL:50-275 Diablo Canyon Nuclear
Power Plant, Unit 1, Pacific
Ga
05000275
50-323 Diablo Canyon Nuclear
Power Plant, Unit 2, Pacific
Ga
05000323
TH.NAME
AUTHOR AFFILIATION
NN,T.P.
Region
4 (Post
820201)
RECIPE
NAME
RECIPIENT AFFILIATION
RUEGER,G.M.
Pacific Gas
& Electric Co.
SUBJECT:
Informs of upcoming insps
50-275/95-98
& 50-323/95-98
to
review
& assess
safety performance
experience
of Terry
turbines in AFW or RCICSs.Also forwards insp schedule
&
performance info to be
made available for review.
DISTRIBUTION CODE:
IE01D
COPIES
RECEIVED:LTR
ENCL
SIZE:
TITLE: General
(50 Dkt)-Insp Rept/Notice of Violation Response
NOTES:
RECIPIENT
ID CODE/NAME
PD4-2
INTERNAL: ACRS
AEOD/SPD/RAB
DEDRO
NRR/DISP/PIPB
NRR/DRCH/HHFB
OE DIR
RGN4
FILE
01
EXTERNAL: LITCO BRYCEiJ
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NRC
COPIES
LTTR ENCL
1
1
2
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1
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RECIPIENT
ID CODE/NAME
MILLERiM
AEOD/DEIB
AE~O/~C
FILE CENTE
RR/DORS/OEAB
NUDOCS-ABSTRACT
OGC/HDS3
NOAC
COPIES
LTTR ENCL
1
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NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE 'O'ASTE! CONTACTTHE DOCL'NIENTCONTROL
DESK, ROOlXI PI -37 (EXT. 504-20S3
) TO ELINilYATE YOUR NAME FROif
DIS"I'RlDl"I'IONLISTS FOR DOCI.'NIEYTSYOL'ON"I . PEED!
i
TOTAL NUMBER OF COPIES
REQUIRED:
LTTR
19
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UNIT E D STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
611 RYAN PLAZADRIVE, SUITE 400
ARLINGTON,TEXAS 76011 6064
JUL 2 8 895
Pacific Gas
and Electric'ompany
Nuclear
Power Generation,
B14A
ATTN:
Gregory
M. Rueger,
Senior Vice
President
and General
Manager
Nuclear
Power Generation
Bus. Unit
77 Beale Street,
Room 1451
P.O.
Box 770000
San Francisco,
Cali fornia
94177
SUBJECT:
REGION IV INITIATIVE INSPECTION -
NRC INSPECTION
REPORT 50-275/95-98:
50-323/95-98
The purpose of this letter is to announce
a Region
IV inspection at your
facility.
The inspection will consist of a site visit and in-office review of
information.
This inspection effort is intended to be completed at each site
by one inspector in about
2 days.
The schedule for the inspection is
contained in Attachment
1 to this letter.
We realize that Diablo Canyon Nuclear
Power Plant has
been recognized
as
a
superior performer with a reduced inspection plan as outlined in a letter
dated
May 8,
1995.
However,
due to the potential safety significance of
problems experienced
with the Terry turbines,
the need exists to perform this
inspection.
The purpose of this inspection is to review and assess
the safety
performance
experience of Terry turbines in auxiliary feedwater
or reactor
core isolation cooling'ystems,
as applicable.
While on site, this inspection
will emphasize
the gathering of site performance
data to support
an in-office
assessment.
The inspection will be conducted
using portions of Inspection
Procedure
93801 "Safety System Functional
Inspection."
Some facilities may
not receive
a site visit based
on recent inspection
and understanding
of
system configuration.
To assist in achieving the objectives of the inspection,
we request that you
make available for review the performance
information contained in
Attachment 2.
My staff will be contacting your staff by telephone to discuss
the information and the site visit schedule.
Should you have
any additional questions
concerning this inspection
or the
requested
information, please
contact
Mr. E. Collins at (817) 860-8291.
Sincerely,
homas
P.
Gwynn
D rec o
Division of Rea
r Sa
e y
9508070ii7 950728
ADOCV OSOOOV75
8
~
'
'
Pacific Gas
and Electric Company
-2-
Dockets:
50-275
50-323
Licenses:.
DPR-82
Attachments:
As stated
CC:
ATTN:
Dr. Richard Ferguson
Energy Chair
1100 lith Street,
Suite 311
Sacramento.
Ca 1-i forni a
95814
San Luis Obispo
Mothers for Peace
ATTN:
Ms.
Nancy Culver
P.O.
Box 164
Pismo Beach, California
93448
Ms. Jacquelyn
C. Wheeler
P.O.
Box 164
. Pismo Beach., California
93448
The County Telegram Tribune
ATTN:
Managing Editor
1321 Johnson
Avenue
P.O.
Box 112
San Luis Obispo, California
93406
San Luis Obispo County Board of
Supervisors
ATTN:
Chairman
Room 370
County Government
Center
San Luis Obispo, California
93408
California Public Utilities Commission
ATTN:
Mr. Truman BurnsNMr. Robert Kinosian
505 Van Ness,
Rm.
4102
San Francisco,
Cali fornia
94102
Diablo Canyon
Independent
Safety Committee
Attn:
Robert
R. Wellington.
Esq.
Legal Counsel
857 Cass Street.
Suite
D
Monterey, California
93940
~
'
Pacific Gas
and Electric Company
-3-
Radiologic Health Branch
State
Department of Health Services
ATTN:
Mr. Steve
Hsu
P.O.
Box 942732
Sacramento,
94234
State of California
ATTN:
Mr. Peter
H. Kaufman
Deputy Attorney General
110 West A Street,
Suite 700
San Diego. Cali fornia
92101
Pacific Gas
and Electric Company
ATTN:
Christopher J.
Warner,
Esq.
P.O.
Box
7442'an
Francisco,
94120
Diablo Canyon Nuclear
Power Plant
ATTN:
Warren
H. Fujimoto. Vice President
and Plant Manager
P.O.
Box 56
Avila Beach, California
93424
~
'
Pacific Gas
and 'Electric Company
4
E-Mail report to D. Sullivan (DJS)
E-Mai.l report to NRR Event Tracking System
(IPAS)
bcc to
DMB (IEOl)
bcc distrib. by RIV:
L. J. Callan
Resident
Inspector
DRSS-F IPB
MIS System
Branch Chief (DRP/E,
WCFO)
Senior Project Inspector
(DRP/E,
WCFO)
RIV File
Branch Chief (DRP/TSS)
Leah Tremper
(OC/LFDCB,
MS:
TWFN 9E10)
B. Henderson
(PAO,
WCFO)
DOCUMENT NAME:
To receive copy of document, Indicate In box: "C"
Copy without enclosures
"E"
Copy with enclosures "N" ~ No copy
RIV:AC:EB
EECollins/lb
07/ag/95
D:DRS
TPGwynn
07
/95
D:DRP
JEDy
07
/95
D:DRS
TPGw nn
07
/95
~
'
-4-
E-Mail report to D. Sullivan (DJS)
E-Mail report to
NRR Event Tracking System
(IPAS)
,bcc to
DMB (IE01)
bcc distrib.
by RIV:
L. J. Callan
DRSS-F IPB
Branch Chief (DRP/E,
WCFO)
RIV File
Leah Tremper
(OC/LFDCB.
MS:
Resident
Inspector
MIS System
Senior Project Inspector
(DRP/E,
WCFO)
Branch Chief (DRP/TSS)
TWFN 9E10)
B. Henderson
(PAO,
WCFO)
i
DOCUMENT NAME:
To receive copy of document, indicate In box: "C" ~ Copy without enclosures
"E" ~ Copy with enclosures "N" ~ No copy
RIV:AC:EB
EECollins/lb
07/s8/95
D:DRS
TPGwynn
07
/95
D:DRP
JEDy
07
/95
D:DRS
TPGw nn
07
/95
t'4 jjQ'(3
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~
'
ATTACHHENT 1
SITE VISIT SCHEDULE
Ins ector
1
August 3-4.
1995
August 7-9
~
1995
August 10-11.
1995
August 15-17.
1995
Palo Verde Nuclear Generating Station
San Onofre Nuclear Generating Station
Diablo Canyon
Wolf Creek
2
2
August 4,
1995
August 8,
1995
August 10-11.
1995
August
14.
1995
August 16-17,
1995
Comanche
Peak
South
Texas Project
Waterford
Nuclear
One
Cooper Nuclear Station
River Bend Station and Washington Nuclear Project
2 will be reviewed by telephone
with the option of performing
a site visit.
ATTACHMENT 2
AREAS OF INTEREST OF TERRY TURBINE PERFORMANCE
FOR INSPECTION
~Cate or
Design
and
Configuration
Lubrication
Governor
Procedures
Area of Interest
Designer of the system
and major design objectives
Automatic initiation signals
Initiation sequence
Design of the overspeed trip ball-tappet
Configuration of the system
Major modifications of the system
Steam admission
valves
Location of the steam admission valves
Leak tightness of the steam admission
valves
Condensate
removal capabilities
Supplier of replacement
parts
Specifications for replacement
parts
Recently purchased
parts
Storage of spare governors
and actuators
Environment in area of turbines
Type of lubricating oil system
Type of oils
Specifications for oi-ls
Operating limits based
on oils
Periodicity for changing oils
Type of governor installed
Type of governor control oil system
Periodicity of refurbishment of governor
Type of remote operation, if applicable
Governor valve stem material
Installation date of governor valve stem
Speed stability verification
DC electrical
system
Overspeed trip mechanisms
Speed
ramp provisions
Terry turbine manual
approved for use
Woodward governor
manual
approved for use
EPRI NP-6909 availability
Verification of governor valve coordination
Replacement
interval for governor
Disassembly/reassembly
of turbine,
governor valve,
etc.
Trip ball-tappet inspections
System operating
procedures
Test procedures
Test frequency
~
'
-2-
Operating
Experience
Generic
Communications
Documents
Required:
Start
demands
Failures
Causes of failures
Generic communication sources
Responses
to generic communications
Terry turbine users
group participation
Copy of system operating
procedure
Copy of system operability test procedure
Copy of governor valve assembly instructions
Copy of applicable
process
and instrumentation
diagrams
Copies of the reviews of:
Information Notices 94-66.
93-51,
86-14 and supplements;
Volume
X