ML043380353

License Renewal Application - Heating, Ventilation, and Cooling (HVAC) Systems Sections 2.3.2 & 2.3.3 - Followup Request for Additional Information (RAI) (Tac Nos. MC1704, MC1705 & MC1706)

ML043380353
Person / Time
Site:	Browns Ferry
Issue date:	12/03/2004
From:	Abney T Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC MC1704, TAC MC1705, TAC MC1706
Download: ML043380353 (9)

Text

December 3, 2004 10 CFR 54 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop: OWFN P1-35 Washington, D.C. 20555-0001 Gentlemen:

In the Matter of

) Docket Nos. 50-259 Tennessee Valley Authority

) 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - UNITS 1, 2, AND 3 LICENSE RENEWAL APPLICATION - HEATING, VENTILATION, AND COOLING (HVAC) SYSTEMS SECTIONS 2.3.2 AND 2.3.3 - FOLLOWUP REQUEST FOR ADDITONAL INFORMATION (RAI) (TAC NOS. MC1704, MC1705, AND MC1706)

By letter dated December 31, 2003, TVA submitted, for NRC review, an application pursuant to 10 CFR 54, to renew the operating licenses for the Browns Ferry Nuclear Plant, Units 1, 2, and 3. As part of the review of TVAs license renewal application, the NRC staff made a request for additional information (RAI) relating to the aging management of Sections 2.3.2 and 2.3.3 of the License Renewal Application. By letter dated November 3, 2004, TVA responded to the additional information requested by the NRC relating to the HVAC Sections 2.3.2 and 2.3.3. The NRC reviewed these RAI responses and determined further clarification was required. This followup NRC RAI was discussed with the TVA staff in a telephone discussion with the NRC on November 9, 2004.

U.S. Nuclear Regulatory Commission Page 2 December 3, 2004 The enclosure to this letter contains the specific NRC requests for additional information and the corresponding TVA response.

If you have any questions regarding this information, please contact Ken Brune, Browns Ferry License Renewal Project Manager, at (423) 751-8421.

I declare under penalty of perjury that the foregoing is true and correct. Executed on this 3rd day of December, 2004.

Sincerely, Original signed by:

T. E. Abney Manager of Licensing and Industry Affairs

Enclosure:

cc: See page 3

U.S. Nuclear Regulatory Commission Page 3 December 3, 2004 Enclosure cc (Enclosure):

State Health Officer Alabama Department of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, Alabama 36130-3017 Chairman Limestone County Commission 310 West Washington Street Athens, Alabama 35611 (Via NRC Electronic Distribution)

Enclosure cc (Enclosure):

U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 Mr. Stephen J. Cahill, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Senior Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970 NRC Unit 1 Restart Senior Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970 cc: continued page 4

U.S. Nuclear Regulatory Commission Page 4 December 3, 2004 cc: (Enclosure)

Margaret Chernoff, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)

One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Eva A. Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)

One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Yoira K. Diaz-Sanabria, Project Manager U.S. Nuclear Regulatory Commission (MS 011F1)

One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Ramachandran Subbaratnama, Project Manager U.S. Nuclear Regulatory Commission (MS 011F1)

One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739

U.S. Nuclear Regulatory Commission Page 5 December 3, 2004 GLS:BAB Enclosure cc (Enclosure):

A. S. Bhatnagar, LP 6-C K. A. Brune, LP 4F-C J. C. Fornicola, LP 6A-C D. F. Helms, LP 6A-C F. C. Mashburn, BR 4X-C R. G. Jones, NAB 1A-BFN K. L. Krueger, POB 2C-BFN R. F. Marks, Jr., PAB 1A-BFN J. R. Rupert, NAB 1F-BFN K. W. Singer, LP 6A-C M. D. Skaggs, PAB 1E-BFN E. J. Vigluicci, ET 11A-K NSRB Support, LP 5M-C EDMS, WT CA-K s://Licensing/Lic/BFN LR Sections 2.3.2 and 2.3.3 HVAC Followup RAI TVA Response Letter.doc

ENCLOSURE TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 1, 2, AND 3 LICENSE RENEWAL APPLICATION (LRA),

RESPONSE TO NRC FOLLOWUP REQUEST FOR ADDITIONAL INFORMATION (RAI), RELATED TO HEATING VENTILATION AND COOLING (HVAC) SYSTEMS SECTION 2.3.2 AND 2.3.3 (SEE ATTACHED)

E-1 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 1, 2, AND 3 LICENSE RENEWAL APPLICATION (LRA),

RESPONSE TO NRC FOLLOWUP REQUEST FOR ADDITIONAL INFORMATION (RAI), RELATED TO HEATING VENTILATION AND COOLING (HVAC) SYSTEMS SECTION 2.3.2 AND 2.3.3 By letter dated December 31, 2003, TVA submitted, for NRC review, an application pursuant to 10 CFR 54, to renew the operating licenses for the Browns Ferry Nuclear Plant, Units 1, 2, and 3. As part of the review of TVAs license renewal application, the NRC staff made a request for additional information (RAI) relating to the aging management of Sections 2.3.2 and 2.3.3 of the License Renewal Application. By letter dated November 3, 2004, TVA responded to the additional information requested by the NRC relating to the HVAC Sections 2.3.2 and 2.3.3. The NRC reviewed these RAI responses and determined further clarification was required. This followup NRC RAI was discussed with the TVA staff in a telephone discussion with the NRC on November 9, 2004.

NRC Request for Additional Information for Section 2.3.5 LRA Section 2.3.5 should be revised to add the following subcomponent Categories:

Ductwork - Air conditioning unit Housings (RAI 2.3.2.1-1, RBVS),

Damper housings (RAI 2.3.2.1-1, RBVS and (RAI 2.3.2.2-1, SGTS),

Screens and Plenums (RAI 2.3.3.8-1, VS, and (RAI 2.3.3.9-1, HVACS)

Fire Dampers - Fire Damper Housings (RAI 2.3.3.8-1 and RAI 2.3.3.9-1)

Heat Exchanger - Cooling Coil Housings ((RAI 2.3.2.1-1, RBVS and RAI 2.3.3.9-1, HVACS)

Add Category "Valves" and add subcategory Valve Bodies (RAI 2.3.2.1-1, RBVS and RAI 2.3.3.9-1, HVACS)

TVA Response to Request for Additional Information by NRC for Section 2.3.5 The following changes apply to Section 2.3.5:

E-2 Under the heading Ductwork:

• Replace "Air Conditioning Unit (ACU)" with "Air Conditioning Unit (ACU) Housings"

• Replace "Air Handling Unit (AHU)" with "Air Handling Unit (AHU) Housings"

• Replace "Dampers (BKD), (BLD), (FCO), (TCO), (XFD), or (DMP)" with "Damper (BKD), (BLD), (FCO), (TCO), (XFD), or (DMP) Housings"

• Add "Plenums"

• Add "Screens" Replace the heading "Fire Dampers" with "Fire Damper Housings" Under the heading Heat Exchanger:

• "Replace Cooling Coil (CCL)" with "Cooling Coil (CCL)

Housing" At the end of Section 2.3.5 add "When valves are listed in Tables in Section 2.3 the portion of the valve that is in scope is the body."

NRC Request for Additional Information for Section 2.3.3.9-1 LRA Section 3.5.2.1.2 is meant for Reactor Building. However, TVA response for RAI 2.3.3.9-1 states that "Structural sealants (such as those required to maintain the control room envelope (at positive pressure with respect to the adjacent areas) or secondary containment (at negative pressure with respect to the adjacent areas) are contained in Section 3.5.2.1.2 and in component type "Compression Joints and Seals" and in component type "Caulking and Sealants" in Table 3.5.2.2." Clarify whether control room envelope is within the reactor building.

If not, provide the proper reference Section and Table number where main control room envelope sealants are described. Also, clarify that structural sealants maintain the control room envelope at positive pressure and secondary containment at negative pressure with respect to the adjacent areas.

E-3 TVA Response to Request for Additional Information by NRC for Section 2.3.3.9-1 The Control Room is part of the Reactor Building per License Renewal Application Section 2.4.2.1. The structure sealants are used to maintain the control room envelope at a positive pressure and the secondary containment at a negative pressure.