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Notification of a Temporary Instruction 2515/177 Inspection and a Request for Information 05000346-12-005 (DRS)
	ML12209A220
Person / Time
Site:	Davis Besse
Issue date:	07/27/2012
From:	Ann Marie Stone; NRC/RGN-III/DRS/EB2
To:	Allen B; FirstEnergy Nuclear Operating Co
	Larry Jones
References
	IR-12-005
	Download: ML12209A220 (8)
	v • d • e

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION III

2443 WARRENVILLE ROAD, SUITE 210

LISLE, IL 60532-4352

July 27, 2012

Mr. Barry Allen

Site Vice President

FirstEnergy Nuclear Operating Company

Davis-Besse Nuclear Power Station

5501 North State Route 2, Mail Stop A-DB-3080

Oak Harbor, OH 43449-9760

SUBJECT: DAVIS-BESSE NUCLEAR POWER STATION - NOTIFICATION OF A

TEMPORARY INSTRUCTION 2515/177 INSPECTION AND A REQUEST FOR

INFORMATION 05000346/2012005 (DRS)

Dear Mr. Allen:

On October 15, 2012, the U. S. Nuclear Regulatory Commission (NRC) will begin the on-site

portion of the Gas Accumulation Management in Emergency Core Cooling, Decay Heat

Removal, and Containment Spray Systems Temporary Instruction at your Davis-Besse Nuclear

Power Station. This inspection will be performed in accordance with the NRC Temporary

Instruction (TI) 2515/177.

In order to minimize the inspections impact on the site and to ensure a productive inspection,

we have enclosed a request for information 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 inspector no later than August 20, 2012.

By August 31, 2012, the inspector will communicate the initial selected samples.

The second group is needed to support our in-office preparation activities. This set of

documents should be available at the Regional Office no later than September 28, 2012.

This information should be separated by information request number, especially if provided

electronically (e.g., folder with the information request number). During the in-office

preparation activities, the inspectors may identify additional information needed to support

the inspection. The lead inspector will provide a list of the additional information needed

during the week of October 1, 2012.

The last group includes the additional information above as well as plant specific reference

material. This information should be available to the inspectors on October 15, 2012. 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.

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 on-site inspection.

If no activities were accomplished associated with a specific request, then provide a statement

indicating that the request is not applicable.

Mr. Allen -2-

The inspector for this inspection is Mr. Larry J. Jones Jr. Please send the information

electronically to the following e-mail address larry.jones@nrc.gov. A hard-copy with the

required information is also an acceptable option.

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.

In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter and its

enclosure will be available electronically for public inspection in the NRC Public Document

Room or from the Publicly Available Records Systems (PARS) component of NRCs document

system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-

rm/adams.html (the Public Electronic Reading Room).

Sincerely,

/RA by A. Dunlop Acting For/

Ann Marie Stone, Chief

Engineering Branch 2

Division of Reactor Safety

Docket No. 50-346

License No. NPF-3

Enclosure: TEMPORARY INSTRUCTION 2515/177 INSPECTION AND A REQUEST FOR

INFORMATION

cc w/encl: Distribution via ListServ'

TEMPORARY INSTRUCTION 2515/177 REQUEST FOR INFORMATION

Inspection Report: 05000346/2012005(DRS)

Inspection Dates: October 15 - 19, 2012, and October 29 - November 2, 2010

Inspection Procedure: Temporary Instruction (TI) 2515/177, Management of Gas

Accumulation in Emergency Core Cooling, Decay Heat Removal,

and Containment Spray Systems

Lead Inspector: Larry J. Jones Jr.

(630) 829-9864

larry.jones@nrc.gov

Team Member: Andrew Dunlop

(630) 829-9726

andrew.dunlop@nrc.gov

I. Information Requested by August 20, 2012

1. Copy of the station response to Generic Letter (GL) 2008-01 and any supplemental

reports.

2. Copies of all the requests for additional information (RAIs) and the associated

responses.

3. List of corrective action program documents (with a short description) associated

with GL 2008-01, voids in piping, gas intrusion events, and pressure transients for

the previous three years that affected the subject systems (i.e., emergency core

cooling, decay heat removal, and containment spray systems).

4. List of the suction piping sections identified as susceptible to gas accumulation (the

list should identify the corresponding system).

5. List of the discharge piping sections identified as susceptible to gas accumulation

(the list should identify the corresponding system).

6. List of changes (with a short description and tracking number) to the Updated

Safety Analysis Report (USAR), Technical Specifications, Technical Specification

Bases, and Technical Requirement Manual associated with the resolution of

GL 2008-01.

7. List of calculations associated with GL 2008-01 (with a short description of the

calculation and the change), including calculations that have been changed or

created in response to GL 2008-01.

1 Enclosure

TEMPORARY INSTRUCTION 2515/177 REQUEST FOR INFORMATION

II. Information Requested By September 28, 2012

1. Copies of program documents and procedures developed to implement the

resolution of GL 2008-01.

2. Copies of the selected corrective action program documents.

3. Copies of the selected licensing and design basis document changes.

4. Copies of the selected calculations.

5. List of commitments (with a description) created in response to GL 2008-01.

6. List of actions completed in response to GL 2008-01.

7. List of outstanding actions that will be completed in response to GL 2008-01 and the

completion schedule (include the documents that are tracking their completion such

as work orders or corrective action documents).

8. Copies of all the corrective actions identified in the nine-month response and

supplemental reports.

9. List (with a short description) of gas intrusion mechanisms that apply to the plant

and the affected system locations (e.g., identify the source, conditions, and

expected void locations).

10. Design basis documents of the subject systems.

11. Design basis documents of keep-full systems of the subject systems.

12. Copies of the construction code pages of the subject systems that discuss

waterhammer or flow-induced dynamic loading. Also, include the associated

Design Specification pages.

13. Provide the following description for the pumps of the subject systems: (1) flowrate

at best efficiency point; (2) maximum and minimum flowrate during accident

conditions and shutdown cooling; (3) number of pump stages; (4) if a pump is multi-

stage, indicate if the shaft is stiff or flexible (include the basis for this determination);

(5) pump head required to meet operability requirements; and (6) un-degraded

pump head.

14. (As applicable) Copies of self-assessments associated with the implementation of

the GL 2008-01 program and the associated corrective action program documents

(include the attachments, if any).

15. Copies of corrective action program implementing procedures.

16. Copies of the operability determination procedures.

2 Enclosure

TEMPORARY INSTRUCTION 2515/177 REQUEST FOR INFORMATION

17. Electronic copies of piping and instrumentation diagrams (P&IDs) of the subject

systems.

18. If available, electronic copies of the current Technical Specifications, Technical

Specifications Basis, Updated Safety Analysis Report, and Technical Report

Manual.

III. Information to be Provided to the Inspector on October 15, 2012. Please Provide

Hard Copies (e.g., paper records) of the Following Documents.

1. Copies of surveillance procedures associated with the resolution of GL 2008-01 and

the results of the last two surveillances for the subject systems.

2. Copies of the modification packages for hardware modifications as part of the

resolution of GL 2008-01.

3. Copies of procedures use for detecting and determining void volumes.

4. Copies of procedures use for filling and venting.

5. Copies of surveillance procedures that establish flow at the subject systems (e.g.,

surveillances where the pumps are operated)

6. Subject systems walkdown work documents associated with the resolution of

GL 2008-01 and the results of these walkdowns.

7. Copies of the engineering evaluations performed for all identified voids.

8. Provide a list of all piping locations that are currently voided and their associated

evaluation.

9. Copies of trends of periodic gas accumulation monitoring results (e.g., venting,

UTs).

10. Copy of the design change review checklist.

11. Copies of training documents that ensure that personnel are aware of gas-related

concerns. Include the scheduled or attendance list of training that was already

conducted.

12. Copy of the void transport analysis.

13. Basis for the void acceptance criteria (e.g., calculation). If applicable, provide the

justification for any deviation from the void acceptance criteria established by the

Office of Nuclear Reactor Regulations (NRR).

14. Basis for horizontal pipe acceptance criteria (e.g., calculation).

3 Enclosure

TEMPORARY INSTRUCTION 2515/177 REQUEST FOR INFORMATION

15. If applicable, provide a list of inaccessible locations where plant walkdowns of the

subject systems have not been completed. Include an explanation of why each

area is considered inaccessible.

16. Hardcopies of isometric drawings of the subject systems (11X17) or similar size is

preferred if legible).

17. Hardcopies of piping and instrumentation diagrams (P&IDs) of the subject systems

(11X17) or similar size is preferred if legible).

The inspector for this inspection is Mr. Larry J. Jones Jr. If there are questions about the

material requested, or the inspection, please call Mr. Larry J. Jones Jr. at (630) 829-6894.

4 Enclosure