ML19106A043
| ML19106A043 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/15/2019 |
| From: | Vance Petrella NRC/RGN-III/DRS/EB2 |
| To: | Fessler P DTE Energy |
| References | |
| IR 2019004 | |
| Download: ML19106A043 (10) | |
See also: IR 05000341/2019004
Text
April 15, 2019
Mr. Paul Fessler, Senior VP
and Chief Nuclear Officer
DTE Energy Company
Fermi 2 - 260 TAC
6400 North Dixie Highway
Newport, MI 48166
SUBJECT: FERMI POWER PLANT, UNIT 2NOTIFICATION OF AN NRC TRIENNIAL HEAT
SINK PERFORMANCE INSPECTION AND REQUEST FOR INFORMATION;
INSPECTION REPORT 05000341/2019004
Dear Mr. Fessler:
On October 28, 2019, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite
portion of the Triennial Heat Sink Performance Inspection at your Fermi Power Plant, Unit 2.
This inspection will be performed in accordance with NRC baseline Inspection
Procedure 71111.07.
In order to minimize the impact that the inspection has on the site and to ensure a productive
inspection, we have enclosed a request for documents needed for the inspection. The
documents have been divided into three groups.
- The first group lists information necessary for our initial inspection scoping activities.
This information should be available to the lead inspector no later than June 17, 2019.
By July 5, 2019, the inspector will communicate the initial selected set of approximately
2-3 risk significant heat exchangers, and 3-4 risk significant pumps, tower fans, and/or
valves for the safety-related service water system.
- The second group is needed to support our in-office preparation activities. This set of
documents, including the calculations associated with the selected heat exchangers,
should be available at the Regional Office no later than October 7, 2019. This
information should be separated for each selected component, especially if provided
electronically (e.g., folder with component name that includes calculations, condition
reports, maintenance history, etc.). During the in-office preparation activities, the
inspector may identify additional information needed to support the inspection.
- The last group includes the additional information above as well as plant specific
reference material. This information should be available at the Regional Office no later
than October 15, 2019. It is also requested that corrective action documents and/or
questions developed during the inspection be provided to the inspector as the
documents are generated.
P. Fessler -2-
All requested documents are to be for the time period from the onsite inspection period back
to the documents that were provided in response to the previous Heat Sink Performance
Inspection. If no activities were accomplished in that time period, then the request applies to
the last applicable document in the previous time period. It is important that these documents
be as complete as possible, in order to minimize the number of documents requested during
the preparation week or during the onsite inspection.
The lead inspector for this inspection is Vance Petrella. We understand that our licensing
contact for this inspection is Shane Gatter of your organization. If there are any questions about
the inspection or the material requested in the enclosure, please contact the lead inspector at
630-829-9847 or via e-mail at Vance.Petrella@nrc.gov.
This letter does not contain new or amended information collection requirements subject
to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information
collection requirements were approved by the Office of Management and Budget, Control
Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to
respond to, a request for information or an information collection requirement unless the
requesting document displays a currently valid Office of Management and Budget Control
Number.
This letter and its enclosure will be made available for public inspection and copying at
http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in
accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
Vance Petrella, Reactor Inspector
Engineering Branch 2
Division of Reactor Safety
Docket No. 50-341
License No. NPF-43
Enclosure:
Document Request for Triennial Heat Sink
Performance Inspection
cc: Distribution via LISTSERV
P. Fessler -3-
Letter to Paul Fessler from Vance Petrella dated April 15, 2019.
SUBJECT: FERMI POWER PLANT, UNIT 2NOTIFICATION OF AN NRC TRIENNIAL HEAT
SINK PERFORMANCE INSPECTION AND REQUEST FOR INFORMATION;
INSPECTION REPORT 05000341/2019004
DISTRIBUTION:
RidsNrrDorlLpl3
RidsNrrPMFermi2 Resource
RidsNrrDirsIrib Resource
DRPIII
DRSIII
ADAMS Accession Number: ML19106A043
OFFICE RIII
NAME VPetrella:cl
DATE 04/15/19
OFFICIAL RECORD COPY
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
Inspection Report: 05000341/2019004
Inspection Dates: October 28, 2019, through November 1, 2019
Inspection Procedure: 71111.07, Heat Sink Performance
Lead Inspector: Vance Petrella
630-829-9847
Vance.Petrella@nrc.gov
Please provide the information electronically in pdf files, Excel, or other searchable formats,
preferably on some portable electronic media (e.g., CD-ROM, DVD). The portable electronic
media should contain descriptive names, and be indexed and hyperlinked to facilitate ease of
use. Information in lists should contain enough information to be easily understood by
someone who has knowledge of light water reactor technology.
I. Information Requested By June 17, 2019
1. List of the Generic Letter (GL) 89-13, Service Water System Problems Affecting
Safety-Related Equipment, heat exchangers in order of risk significance.
2. Copy of heat exchanger performance trending data tracked for each GL 89-13
heat exchanger.
3. List of Corrective Action Program (CAP) documents (with a short description)
associated with GL 89-13 heat exchangers, heat sinks, silting, corrosion,
fouling, or heat exchanger testing, for the previous 3 years or since the last CAP
document list was sent to the U.S. Nuclear Regulatory Commission for the
previous Heat Sink Performance Inspection. The list should include all CAP
documents not on the last CAP document list.
4. Copy of any self-assessment done on any of GL 89-13 heat exchangers,
Ultimate Heat Sink (UHS), and safety-related service water systems since the
last Heat Sink Performance Inspection.
5. Last two System Health Report(s) and maintenance rule system notebooks for all
the GL 89-13 heat exchangers, UHS, and safety-related service water systems.
6. List of engineering-related operator workarounds (with a short description)
associated with GL 89-13 heat exchangers. The requested documents are to be
for the time period from the onsite inspection period back to the documents that
were provided in response to the previous Heat Sink Performance Inspection.
Enclosure
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
7. List of permanent and temporary modifications (with a short description)
associated with GL 89-13 heat exchangers, UHS, and safety-related service
water systems. The requested documents are to be for the time period from the
onsite inspection period back to the documents that were provided in response to
the previous Heat Sink Performance Inspection.
8. Electronic copies of the current Final Safety Analysis Report, Technical
Specifications, Technical Specifications Basis, and Technical Report Manual.
9. List of enhancements and/or commitments made during license renewal for
GL 89-13 heat exchangers, UHS, and safety-related service and closed cooling
water systems (as applicable).
10. Electronic copies of the current Probability Risk Assessment Summary Note
Books.
11. A list of the top 30 risk-significant pumps, tower fans, and/or valves for the
safety-related service water system in order of risk significance.
12. Provide an electronic copy of piping and instrumentation diagrams for the
safety-related service water system, including the intake structure.
II Information Requested By October 7, 2019
1. Copies of the GL 89-13 responses.
2. Copies of procedures developed to implement the recommendations of GL 89-13
(e.g., the GL 89-13 Heat Exchanger Program description).
3. Copies of the selected CAP documents.
4. For the specific heat exchangers selected:
a. Copies of the Updated Final Safety Analysis Report (UFSAR) sections
applicable for each heat exchanger.
b. Copy of system description and design basis document for the heat
exchangers (as applicable).
c. Provide the calculations or evaluations that:
i. Establish the limiting design basis heat load required to be
removed by each of these heat exchangers;
ii. Demonstrate the heat exchangers capacity to remove the limiting
heat load;
iii. Correlate surveillance testing and/or inspection results from these
heat exchangers with design basis heat removal capability (e.g.,
basis for surveillance test and/or inspection acceptance criteria);
2
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
iv. Evaluate the potential for water hammer in each heat exchanger
or associated piping; and
v. Evaluate excessive tube vibration in each heat exchanger.
d. Copy of any operability determinations or other documentation of
degradation associated with the heat exchangers or the systems that
support the operation for the selected heat exchangers.
e. Copy of the construction code, design specification, heat exchanger data
sheets, and vendor documents including component drawings applicable
for the heat exchangers.
f. Copies of normal, abnormal, and emergency operating procedures
associated with the selected heat exchangers.
g. Copies of the Aging Management Programs (AMP) and the implementing
procedures that manage aging of the selected heat exchangers (as
applicable).
5. For the UHS and the safety-related service water system (or equivalent):
a. Copies of the applicable Updated Final Safety Analysis Report (UFSAR)
sections.
b. Copy of system description and design basis document (as applicable).
c. Copy of any operability determinations or other documentation of
degradation associated with the UHS and the safety-related service
water system.
d. Copy of the document (e.g., UFSAR or Technical Requirements Manual)
that states the maximum cooling water system inlet temperature limit that
still allows full licensed power operation of the nuclear reactor.
e. Copy of the construction code and design specification.
f. Copies of normal, abnormal, and emergency operating procedures
associated with the UHS and safety-related service water systems
including procedures for loss of these systems.
g. Copies of corrective action documents associated with waterhammer or
hydraulic transients in the service water system since the last Heat Sink
Inspection.
h. If available, provide electronic copies of the structural drawings of the
intake structure and UHS.
i. Provide a list of calculations (with a short description), which currently
apply to UHS and safety-related service water system.
3
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
j. Provide a list of instruments (with a short description) associated with
automatic or alarm functions for the safety-related service water system
and/or UHS.
k. Provide a list of any design change (with a short description) performed
on the UHS or safety-related service water system since the last Heat
Sink Performance Inspection.
l. Copies of the AMPs and the implementing procedures that manage aging
of the UHS (including the intake structure) and the safety-related service
and closed cooling water systems (as applicable).
6. A schedule of all inspections, cleanings, maintenance, or testing of any
safety-related plant heat exchanger to be performed during the on-site portion
of the inspection.
III Information Requested by October 15, 2019
1. For the specific heat exchangers selected.
a. Copies of the two most recent completed tests and evaluation data
confirming thermal performance for those heat exchangers which are
performance tested.
b. Documentation and procedures that identify the types, accuracy, and
location of any special instrumentation used for the two most recently
completed thermal performance tests for the heat exchangers (e.g., high
accuracy ultrasonic flow instruments or temperature instruments).
Include calibration records for the instruments used during these tests.
c. Information regarding any alarms which monitor on-line performance.
d. Copy of the document describing the inspection results of each heat
exchanger. The requested documents are to be for the time period from
the onsite inspection period back to the documents that were provided in
response to the previous Heat Sink Performance Inspection.
e. The cleaning and inspection maintenance schedule for each heat
exchanger for the next 5 years.
f. Copy of the operating procedure that ensures that the maximum cooling
water system inlet temperature limit is not exceeded.
g. Copy of the calculations or documents which evaluate the potential for
water hammer in each heat exchanger or associated piping.
h. The documents that describe the controls that prevent heat exchanger
degradation due to excessive flow induced vibration during operation.
4
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
i. Copy of the periodic flow testing at or near maximum design flow.
The requested documents are to be for the time period from the onsite
inspection period back to the documents that were provided in response
to the previous Heat Sink Performance Inspection.
j. Copy of the document which identifies the current number of tubes in
service for each heat exchanger and the supporting calculation which
establishes the maximum number of tubes which can be plugged in each
heat exchanger.
k. Copy of the document establishing the repair criteria (plugging limit) for
degraded tubes which are identified in each heat exchanger.
l. Copies of the documents that verify the structural integrity of the heat
exchanger (e.g., eddy current summary sheets, ultrasonic testing results,
and visual inspection results).
m. Copies of those documents that describe the methods taken to control
water chemistry in the heat exchangers.
n. Copies of those documents that describe the methods taken to control
water chemistry in the heat exchangers, including those credited by any
AMPs (as applicable).
o. Copies of any credited AMP monitoring/inspection results for the selected
heat exchangers (as applicable). The requested documents are to be for
any completed monitoring/inspection in the time period from the onsite
inspection period back to the documents that were provided in response
to the previous Heat Sink Performance Inspection.
2. For the UHS:
a. Copies of calculations and surveillances that determine the UHS reservoir
capacity and heat transfer capability.
b. Copies of surveillance procedures and testing results performed on the
instrumentation relied upon to determine UHS reservoir capability.
The requested documents are to be for the time period from the onsite
inspection period back to the documents that were provided in response
to the previous Heat Sink Performance Inspection.
c. Copies of documents associated with the periodic monitoring and
trending of sediment built-up.
d. Copies of the procedures used for verifying that adjacent non-seismic or
non-safety related structures cannot degrade or block safety-related flow
paths during severe weather or seismic events.
5
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
e. Copies of procedures for the periodic performance monitoring of heat
transfer capacity and the associated results. The requested documents
are to be for the time period from the onsite inspection period back to the
documents that were provided in response to the previous heat sink
performance inspection.
f. Copies of the inspection procedures for the verification of the structural
integrity of the UHS and the associated results. The requested
documents are to be for the time period from the onsite inspection
period back to the documents that were provided in response to the
previous Heat Sink Performance Inspection.
g. Copy of the calculation associated with the structural integrity of the UHS.
The requested documents are to be for the time period from the onsite
inspection period back to the documents that were provided in response
to the previous Heat Sink Performance Inspection.
3. For the review of the performance testing of the safety-related service water
system (or equivalent) and the UHS:
a. Copies of the last two performance tests, such as the ASME in-service
test, for the selected pumps, valves, and, if applicable, the towers fans
in the safety-related service water system. If the components are not
performance tested, please provide documentation verifying performance
by the methods actually used.
b. Copies of the documents that demonstrate that flow balance testing was
performed during the last 3 years. If the last flow test was performed
longer than 3 years, then provide the last flow test.
c. Copies of the documents that demonstrate that flow balance testing will
continue to be periodically done in the future.
d. Copies of procedures used to monitor interface valves between
the safety-related section of the service water system and the
nonsafety-related section and the associated results. The requested
documents are to be for the time period from the onsite inspection period
back to the documents that were provided in response to the previous
Heat Sink Performance Inspection.
e. Copies of the procedures that verify the performance of risk-significant
non-safety functions and the associated results. The requested
documents are to be for the time period from the onsite inspection period
back to the documents that were provided in response to the previous
Heat Sink Performance Inspection.
4. Copies of any credited AMP monitoring/inspection results for the safety-related
service and closed cooling water systems, and the UHS (as applicable). The
requested documents are to be for any completed monitoring/inspection in the
time period from the onsite inspection period back to the documents that were
provided in response to the previous Heat Sink Performance Inspection.
6
DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
If the information requested above will not be available, please contact Vance Petrella as soon
as possible at 630-829-9847 or e-mail Vance.Petrella@nrc.gov.
7