CPSES-200602162, Transmittal of Report on Txu Power Sponsored Coatings Letter

Transmittal of Report on Txu Power Sponsored Coatings Letter

ML070230387
Person / Time
Site:	Comanche Peak
Issue date:	10/20/2006
From:	Madden F TXU Power
To:	Matthew Yoder Document Control Desk, Office of Nuclear Reactor Regulation
References
CPSES-200602162, GL-04-002, TXX-06180
Download: ML070230387 (2)

Text

STXU Power TXU Power Mike Blevins Comanche Peak Steam Senior Vice President &

Electric Station Chief Nuclear Officer Ref. GL 2004-02 P. O. Box 1002 (EOt)

Glen Rose, TX 76043 Tel: 254 897 5209 Fax: 254 897 6652 mike.blevins@txu.com CPSES-200602162 Log # TXX-06180 October 20, 2006 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Attn: Mr. Matthew G. Yoder, Mail Stop 9 H6

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NOS. 50-445 AND 50-446 TRANSMITTAL OF REPORT ON TXU POWER SPONSORED COATINGS PERFORMANCE TEST Gentlemen:

In follow up to discussions which took place during the August 22, 2006 public meeting with the Nuclear Energy Institute (NEI) and vendors to discuss Pressurized Water reactor (PWR) Sump Downstream Effects, please find enclosed the report regarding a TXU Generation Company LP (TXU Power) sponsored coatings test, conducted at Keeler and Long PPG NAS Test Facility. This report documents the autoclave testing of coatings samples from the CPSES Unit 1 Containment. The samples were Carboline Phenoline-305 paint chips which had failed in-service by delamination. The primer for the coating system is Carboline CZ- 11. The tests were conducted in accordance with the requirements of ASTM D 391 1-03, "Standard Method for Evaluating Coatings Used in Light-Water Nuclear Power Plants at Simulated Loss of Coolant Accident (LOCA) Conditions."

TXU Power will use this report in the analysis of emergency sump performance in response to NRC Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized Water Reactors."

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway - Comanche Peak - Diablo Canyon

• Palo Verde

• South Texas Project

• Wolf Creek

TXX-06 180 Page 2 of 2 The report, Keeler and Long Report No. 06-0413, "Design Basis Accident Testing of Coating Samples from Unit I Containment, TXU Comanche Peak SES," is being provided in electronic format on the enclosed compact disk. This report is being provided "For Information Only."

This communication contains no new licensing basis commitments regarding CPSES Units I and 2. Should you have any questions, please contact Mr. Charles Feist at (254) 897-8605.

Sincerely, TXU Generation Company LP By: TXU Generation Management Company LLC, Its General Partner Mike Blevins By: 4&

/Fred W. Madden Director, Oversight and Regulatory Affairs RJK Enclosure c- B. S. Mallett, Region IV (clo)

M. C. Thadani, NRR (cdo)

Resident Inspectors, CPSES (clo)