ML11181A076

Notification of Inspection (NRC Inspection Report 05000445/2011004, 05000446/2011004) and Request for Information

ML11181A076
Person / Time
Site:	Comanche Peak
Issue date:	06/30/2011
From:	Thomas Farnholtz Region 4 Engineering Branch 1
To:	Flores R Luminant Generation Co
References
IR-11-004
Download: ML11181A076 (5)

See also: IR 05000445/2011004

Text

UNITED STATES NUCLEAR REGULATORY

COMMISSION

REGION IV Rafael Flores, Senior Vice President

and Chief Nuclear Officer Luminant Generation

Company LLC Comanche Peak Nuclear Power Plant P.O. Box 1002 Glen Rose, TX 76043 612 EAST LAMAR BLVD, SUITE 400 ARLINGTON, TEXAS 76011-4125

June 30, 2011 SUBJECT: COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 -NOTIFICATION

OF INSPECTION (NRC INSPECTION

REPORT 05000445/2011004;

05000446/2011004)

AND REQUEST FOR INFORMATION

Dear Mr. Flores: On August 15, 2011, the U.S. Nuclear Regulatory

Commission (NRC) will begin the onsite portion of the Gas Accumulation

Management

in Emergency

Core Cooling, Decay Heat Removal, and Containment

Spray Systems Temporary

Instruction

at your Comanche Peak Nuclear Power Plant, Units 1 and 2. This inspection

will be performed

in accordance

with NRC Temporary

Instruction (TI) 2515/177.

Experience

has shown that this inspection

is resource intensive

both for the NRC inspectors

and your staff. In order to minimize the impact to your onsite resources

and to ensure a productive

inspection, we have enclosed a request for documents

needed for this inspection.

The documents

have been divided into two groups. * The first group lists information

necessary

for our initial inspection

scoping and in-office

preparation

activities.

This information

should be separated

by information

request number, especially

if provided electronically (e.g., folder with the information

request number). This information

should be available

to the inspector

no later than August 1, 2011. Upon review of these documents, the inspectors

will select additional

documentation

for review upon arrival. By August 10, 2011, the inspector

will communicate

the initial selected samples. * The second group of documents

requested

is needed to support our onsite inspection

activities.

This set of documents

should be available

to the inspector

on August 15, 2011. It is also requested

that corrective

action documents

and responses

to questions

developed

during the inspection

be provided to the inspector

as the documents

are generated.

We have discussed

the schedule for these inspection

activities

with your staff and understand

that our regulatory

contact for this inspection

will be Gary Merka of your licensing

organization.

If there are any questions

about this inspection

or the materia! requested, please contact the inspector, Matt Young, at 817-276-6545

or by email at

-2 -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 Code of Federal Regulations, Title 10, Part 2.390 of the NRC's 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 (PARS) component

of NRC's document system (ADAMS). ADAMS is accessible

from the NRC Web site at (the Public Electronic

Reading Room). Dockets: 50-445; 50-446 Licenses:

NPF-87; NPF-89 Thomas R. Farnholtz, Chief Engineering

Branch 1 Division of Reactor Safety Enclosure:

Management

of Gas Accumulation

in Emergency

Core Cooling, Decay Heat Removal, and Containment

Spray Systems Temporary

Instruction

Document Request cc w/encl: Distribution

via ListServ for Comanche Peak

MANAGEMENT

OF GAS ACCUMULATION

IN EMERGENCY

CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT

SPRAY SYSTEMS TEMPORARY

INSTRUCTION

DOCUMENT REQUEST inspection

Report: On-site Inspection

Dates: Inspection

Procedure:

Lead InspectorlTeam

Leader: 05000445/2011004;

05000446/2011004

August 15-19, 2011 TI 2515/177, "Management

of Gas Accumulation

in Emergency

Core Cooling, Decay Heat Removal, and Containment

Spray Systems" Matt Young 817 -276-6545

Matt.young@nrc.gov

The following

information

should be sent to the Region IV office in hard copy or electronic

format (ims.certrec.com

or compact disc, preferred), in care of Matt Young, to facilitate

the selection

of specific items that will be reviewed during the onsite inspection

week. The inspector

will select specific items from the information

requested

below and then request from your staff additional

documents

needed during the onsite inspection

weeks. Also, we request that you categorize

the documents

in your response with the numbered list below. Please provide requested

documentation

electronically

if possible.

If requested

documents

are large and only hard copy formats are available, please inform the inspector(s), and provide subject documentation

during the first day of the onsite inspection.

If you have any questions

regarding

this information

request, please call the inspector

as soon as possible.

I. Information

Requested

By August 1, 2011 1. List of corrective

action program documents (with a short description)

associated

with Generic Letter (GL) 2008-01, voids in piping, and pressure transients

for the previous three years. 2. List of changes (with a short description

and tracking number) to the final safety analysis report (FSAR), technical

specifications, technical

specification

bases, and technical

requirements

manual associated

with the resolution

of GL 2008-01. 3. List of calculations

associated

with GL 2008-01, including

calculations

that have been changed or created in response to GL 2008-01 (with a short description

of the calculation

and the change). 4. 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).

5. List of the suction piping sections identified

as susceptible

to gas accumulation (the list should identify the corresponding

system). -1 -Enclosure

6. List of the discharge

piping sections identified

as susceptible

to gas accumulation (the list should identify the corresponding

system). 7. Copies of isometric

drawings of the emergency

core cooling, residual heat removal, and containment

spray systems (hard-copies

are preferred).

8. Copies of piping and instrumentation

diagrams (P&IDs) of the emergency

core cooling, residual heat removal, and containment

spray systems (hard-copies

are preferred).

9. Copies of program documents

and procedures

developed

to implement

the resolution

of GL 2008-01. 10. List of actions that were completed

in response to GL 2008-01. 11. Copies of the modification

packages for hardware modifications

as part of the resolution

of GL 2008-01. 12. Design basis documents

of the emergency

core cooling, residual heat removal, and containment

spray systems. 13. Design basis documents

of keep-full

systems of the emergency

core cooling, residual heat removal, and containment

spray systems. 14. System walkdown reports associated

with the resolution

of GL 2008-01. 15. If applicable, provide a list of inaccessible

locations

where plant walkdowns

of the emergency

core cooling, residual heat removal, and containment

spray systems have not been completed.

Include an explanation

of why each area is considered

inaccessible.

16. Copies of surveillance

procedures

associated

with the resolution

of GL 2008-01 and the results of the last two surveillances

for the emergency

core cooling, residual heat removal, and containment

spray systems. 17. Copies of procedures

used for detecting

and determining

void volumes. 18. Copies of procedures

used for filling and venting. 19. Copies of trends of periodic venting results. 20. Copies of the engineering

evaluations

performed

for all identified

voids in the past three years. 21. 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 Regulation (NRR). 22. Copy of any void transport

analyses. -2 -Enclosure

23. Copy of vortexing

calculations

associated

with systems under the scope of GL 2008-01. 24. Copies of self-assessments

associated

with the implementation

of the GL 2008-01 program. II. Information

Requested

By August 15,2011 25. Copies of the selected corrective

action program documents.

26. Copies of the selected licensing

and design basis document changes. 27. Copies of the selected calculations.

28. Copies of training documents

that ensure that personnel

are aware of gas-related

concerns.

29. Copies of corrective

action program implementing

procedures.

30. Electronic copies

of the current technical

specifications, technical

specification

bases, final safety analysis report, and technical

requirements

manual. -3 -Enclosure